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Instead of using a hash set to prevent duplicates, explicitly avoid reexporting variants twice #2

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jseyfried
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@petrochenkov
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Is your goal to keep Vec for efficiency?
I don't think it makes much difference, it's not like export sets are actively read and written all the time (also our hash sets are compact and cache friendly).

I don't like treating variants specially and there's a good chance structs will have to be treated specially as well in the future.
Also, reexport sets are semantically sets, so I prefer the solution with hash sets.

@jseyfried
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Good points, I agree.

My goal was to keep Vec because I wanted a call to add_export to eventually export in exactly one namespace, making the hash set unnecessary. I wanted this so that a variant imported by a public glob could be shadowed in just one namespace (shadowing of globs has been proposed here and here).

However, as I thought about this some more I concluded that it is probably not a good idea to export only one namespace of a variant (or a unit struct, for that matter) anyway since it would overcomplicate the auto-generated documentation.

@jseyfried jseyfried closed this Jan 31, 2016
@jseyfried jseyfried deleted the resolve branch January 31, 2016 10:17
petrochenkov pushed a commit that referenced this pull request Aug 9, 2016
rustc_trans: don't Assert(Overflow(Neg)) when overflow checks are off.

Generic functions using `Neg` on primitive types would panic even in release mode, with MIR trans.
The solution is a bit hacky, as I'm checking the message, since there's no dedicated `CheckedUnOp`.

Blocks Servo rustup ([failure #1](http://build.servo.org/builders/linux-rel/builds/2477/steps/test_3/logs/stdio), [failure #2](http://build.servo.org/builders/mac-rel-css/builds/2364/steps/test/logs/stdio)) - this should be the last hurdle, it affects only one test.
petrochenkov pushed a commit that referenced this pull request Jan 18, 2017
For a given file

```rust
trait A { fn foo(&self) {} }
trait B : A { fn foo(&self) {} }

fn bar<T: B>(a: &T) {
  a.foo()
}
```

provide the following output

```
error[E0034]: multiple applicable items in scope
 --> file.rs:6:5
  |
6 |   a.foo(1)
  |     ^^^ multiple `foo` found
  |
note: candidate #1 is defined in the trait `A`
 --> file.rs:2:11
  |
2 | trait A { fn foo(&self, a: usize) {} }
  |           ^^^^^^^^^^^^^^^^^^^^^^^^^^
help: to use it here write `A::foo(&a, 1)` instead
 --> file.rs:6:5
  |
6 |   a.foo(1)
  |     ^^^
note: candidate #2 is defined in the trait `B`
 --> file.rs:3:15
  |
3 | trait B : A { fn foo(&self, a: usize) {} }
  |               ^^^^^^^^^^^^^^^^^^^^^^^^^^
help: to use it here write `B::foo(&a, 1)` instead
 --> file.rs:6:5
  |
6 |   a.foo(1)
  |     ^^^
```
petrochenkov pushed a commit that referenced this pull request Jan 18, 2017
E0034: provide disambiguated syntax for candidates

For a given file

```rust
trait A { fn foo(&self) {} }
trait B : A { fn foo(&self) {} }

fn bar<T: B>(a: &T) {
  a.foo()
}
```

provide the following output

```
error[E0034]: multiple applicable items in scope
 --> file.rs:6:5
  |
6 |   a.foo(1)
  |     ^^^ multiple `foo` found
  |
note: candidate #1 is defined in the trait `A`
 --> file.rs:2:11
  |
2 | trait A { fn foo(&self, a: usize) {} }
  |           ^^^^^^^^^^^^^^^^^^^^^^^^^^
help: to use it here write `A::foo(&a, 1)` instead
 --> file.rs:6:5
  |
6 |   a.foo(1)
  |     ^^^
note: candidate #2 is defined in the trait `B`
 --> file.rs:3:15
  |
3 | trait B : A { fn foo(&self, a: usize) {} }
  |               ^^^^^^^^^^^^^^^^^^^^^^^^^^
help: to use it here write `B::foo(&a, 1)` instead
 --> file.rs:6:5
  |
6 |   a.foo(1)
  |     ^^^
```

Fix rust-lang#37767.
petrochenkov pushed a commit that referenced this pull request Feb 16, 2017
LeakSanitizer, ThreadSanitizer, AddressSanitizer and MemorySanitizer support

```
$ cargo new --bin leak && cd $_

$ edit Cargo.toml && tail -n3 $_
```

``` toml
[profile.dev]
opt-level = 1
```

```
$ edit src/main.rs && cat $_
```

``` rust
use std::mem;

fn main() {
    let xs = vec![0, 1, 2, 3];
    mem::forget(xs);
}
```

```
$ RUSTFLAGS="-Z sanitizer=leak" cargo run --target x86_64-unknown-linux-gnu; echo $?
    Finished dev [optimized + debuginfo] target(s) in 0.0 secs
     Running `target/debug/leak`

=================================================================
==10848==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 16 byte(s) in 1 object(s) allocated from:
    #0 0x557c3488db1f in __interceptor_malloc /shared/rust/checkouts/lsan/src/compiler-rt/lib/lsan/lsan_interceptors.cc:55
    #1 0x557c34888aaa in alloc::heap::exchange_malloc::h68f3f8b376a0da42 /shared/rust/checkouts/lsan/src/liballoc/heap.rs:138
    #2 0x557c34888afc in leak::main::hc56ab767de6d653a $PWD/src/main.rs:4
    #3 0x557c348c0806 in __rust_maybe_catch_panic ($PWD/target/debug/leak+0x3d806)

SUMMARY: LeakSanitizer: 16 byte(s) leaked in 1 allocation(s).
23
```

```
$ cargo new --bin racy && cd $_

$ edit src/main.rs && cat $_
```

``` rust
use std::thread;

static mut ANSWER: i32 = 0;

fn main() {
    let t1 = thread::spawn(|| unsafe { ANSWER = 42 });
    unsafe {
        ANSWER = 24;
    }
    t1.join().ok();
}
```

```
$ RUSTFLAGS="-Z sanitizer=thread" cargo run --target x86_64-unknown-linux-gnu; echo $?
==================
WARNING: ThreadSanitizer: data race (pid=12019)
  Write of size 4 at 0x562105989bb4 by thread T1:
    #0 racy::main::_$u7b$$u7b$closure$u7d$$u7d$::hbe13ea9e8ac73f7e $PWD/src/main.rs:6 (racy+0x000000010e3f)
    #1 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h2e466a92accacc78 /shared/rust/checkouts/lsan/src/libstd/panic.rs:296 (racy+0x000000010cc5)
    #2 std::panicking::try::do_call::h7f4d2b38069e4042 /shared/rust/checkouts/lsan/src/libstd/panicking.rs:460 (racy+0x00000000c8f2)
    #3 __rust_maybe_catch_panic <null> (racy+0x0000000b4e56)
    #4 std::panic::catch_unwind::h31ca45621ad66d5a /shared/rust/checkouts/lsan/src/libstd/panic.rs:361 (racy+0x00000000b517)
    rust-lang#5 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::hccfc37175dea0b01 /shared/rust/checkouts/lsan/src/libstd/thread/mod.rs:357 (racy+0x00000000c226)
    rust-lang#6 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::hd880bbf91561e033 /shared/rust/checkouts/lsan/src/liballoc/boxed.rs:605 (racy+0x00000000f27e)
    rust-lang#7 std::sys::imp::thread::Thread::new::thread_start::hebdfc4b3d17afc85 <null> (racy+0x0000000abd40)

  Previous write of size 4 at 0x562105989bb4 by main thread:
    #0 racy::main::h23e6e5ca46d085c3 $PWD/src/main.rs:8 (racy+0x000000010d7c)
    #1 __rust_maybe_catch_panic <null> (racy+0x0000000b4e56)
    #2 __libc_start_main <null> (libc.so.6+0x000000020290)

  Location is global 'racy::ANSWER::h543d2b139f819b19' of size 4 at 0x562105989bb4 (racy+0x0000002f8bb4)

  Thread T1 (tid=12028, running) created by main thread at:
    #0 pthread_create /shared/rust/checkouts/lsan/src/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:902 (racy+0x00000001aedb)
    #1 std::sys::imp::thread::Thread::new::hce44187bf4a36222 <null> (racy+0x0000000ab9ae)
    #2 std::thread::spawn::he382608373eb667e /shared/rust/checkouts/lsan/src/libstd/thread/mod.rs:412 (racy+0x00000000b5aa)
    #3 racy::main::h23e6e5ca46d085c3 $PWD/src/main.rs:6 (racy+0x000000010d5c)
    #4 __rust_maybe_catch_panic <null> (racy+0x0000000b4e56)
    rust-lang#5 __libc_start_main <null> (libc.so.6+0x000000020290)

SUMMARY: ThreadSanitizer: data race $PWD/src/main.rs:6 in racy::main::_$u7b$$u7b$closure$u7d$$u7d$::hbe13ea9e8ac73f7e
==================
ThreadSanitizer: reported 1 warnings
66
```

```
$ cargo new --bin oob && cd $_

$ edit src/main.rs && cat $_
```

``` rust
fn main() {
    let xs = [0, 1, 2, 3];
    let y = unsafe { *xs.as_ptr().offset(4) };
}
```

```
$ RUSTFLAGS="-Z sanitizer=address" cargo run --target x86_64-unknown-linux-gnu; echo $?
=================================================================
==13328==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7fff29f3ecd0 at pc 0x55802dc6bf7e bp 0x7fff29f3ec90 sp 0x7fff29f3ec88
READ of size 4 at 0x7fff29f3ecd0 thread T0
    #0 0x55802dc6bf7d in oob::main::h0adc7b67e5feb2e7 $PWD/src/main.rs:3
    #1 0x55802dd60426 in __rust_maybe_catch_panic ($PWD/target/debug/oob+0xfe426)
    #2 0x55802dd58dd9 in std::rt::lang_start::hb2951fc8a59d62a7 ($PWD/target/debug/oob+0xf6dd9)
    #3 0x55802dc6c002 in main ($PWD/target/debug/oob+0xa002)
    #4 0x7fad8c3b3290 in __libc_start_main (/usr/lib/libc.so.6+0x20290)
    rust-lang#5 0x55802dc6b719 in _start ($PWD/target/debug/oob+0x9719)

Address 0x7fff29f3ecd0 is located in stack of thread T0 at offset 48 in frame
    #0 0x55802dc6bd5f in oob::main::h0adc7b67e5feb2e7 $PWD/src/main.rs:1

  This frame has 1 object(s):
    [32, 48) 'xs' <== Memory access at offset 48 overflows this variable
HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext
      (longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-buffer-overflow $PWD/src/main.rs:3 in oob::main::h0adc7b67e5feb2e7
Shadow bytes around the buggy address:
  0x1000653dfd40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000653dfd50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000653dfd60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000653dfd70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000653dfd80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x1000653dfd90: 00 00 00 00 f1 f1 f1 f1 00 00[f3]f3 00 00 00 00
  0x1000653dfda0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000653dfdb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000653dfdc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000653dfdd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x1000653dfde0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Heap right redzone:      fb
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack partial redzone:   f4
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==13328==ABORTING
1
```

```
$ cargo new --bin uninit && cd $_

$ edit src/main.rs && cat $_
```

``` rust
use std::mem;

fn main() {
    let xs: [u8; 4] = unsafe { mem::uninitialized() };
    let y = xs[0] + xs[1];
}
```

```
$ RUSTFLAGS="-Z sanitizer=memory" cargo run; echo $?
==30198==WARNING: MemorySanitizer: use-of-uninitialized-value
    #0 0x563f4b6867da in uninit::main::hc2731cd4f2ed48f8 $PWD/src/main.rs:5
    #1 0x563f4b7033b6 in __rust_maybe_catch_panic ($PWD/target/debug/uninit+0x873b6)
    #2 0x563f4b6fbd69 in std::rt::lang_start::hb2951fc8a59d62a7 ($PWD/target/debug/uninit+0x7fd69)
    #3 0x563f4b6868a9 in main ($PWD/target/debug/uninit+0xa8a9)
    #4 0x7fe844354290 in __libc_start_main (/usr/lib/libc.so.6+0x20290)
    rust-lang#5 0x563f4b6864f9 in _start ($PWD/target/debug/uninit+0xa4f9)

SUMMARY: MemorySanitizer: use-of-uninitialized-value $PWD/src/main.rs:5 in uninit::main::hc2731cd4f2ed48f8
Exiting
77
```
petrochenkov added a commit that referenced this pull request Feb 25, 2017
petrochenkov pushed a commit that referenced this pull request Mar 8, 2017
Group "missing variable bind" spans in `or` matches and clarify wording
for the two possible cases: when a variable from the first pattern is
not in any of the subsequent patterns, and when a variable in any of the
other patterns is not in the first one.

Before:

```
error[E0408]: variable `a` from pattern #1 is not bound in pattern #2
  --> file.rs:10:23
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                       ^^^^^^^^^^^ pattern doesn't bind `a`

error[E0408]: variable `b` from pattern #2 is not bound in pattern #1
  --> file.rs:10:32
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                                ^ pattern doesn't bind `b`

error[E0408]: variable `a` from pattern #1 is not bound in pattern #3
  --> file.rs:10:37
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                                     ^^^^^^^^ pattern doesn't bind `a`

error[E0408]: variable `d` from pattern #1 is not bound in pattern #3
  --> file.rs:10:37
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                                     ^^^^^^^^ pattern doesn't bind `d`

error[E0408]: variable `c` from pattern #3 is not bound in pattern #1
  --> file.rs:10:43
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                                           ^ pattern doesn't bind `c`

error[E0408]: variable `d` from pattern #1 is not bound in pattern #4
  --> file.rs:10:48
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                                                ^^^^^^^^ pattern doesn't bind `d`

error: aborting due to 6 previous errors
```

After:

```
error[E0408]: variable `a` is not bound in all patterns
  --> file.rs:20:37
   |
20 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => {
intln!("{:?}", a); }
   |               -       ^^^^^^^^^^^   ^^^^^^^^         - variable
t in all patterns
   |               |       |             |
   |               |       |             pattern doesn't bind `a`
   |               |       pattern doesn't bind `a`
   |               variable not in all patterns

error[E0408]: variable `d` is not bound in all patterns
  --> file.rs:20:37
   |
20 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => {
intln!("{:?}", a); }
   |                  -          -       ^^^^^^^^   ^^^^^^^^ pattern
esn't bind `d`
   |                  |          |       |
   |                  |          |       pattern doesn't bind `d`
   |                  |          variable not in all patterns
   |                  variable not in all patterns

error[E0408]: variable `b` is not bound in all patterns
  --> file.rs:20:37
   |
20 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => {
intln!("{:?}", a); }
   |         ^^^^^^^^^^^            -    ^^^^^^^^   ^^^^^^^^ pattern
esn't bind `b`
   |         |                      |    |
   |         |                      |    pattern doesn't bind `b`
   |         |                      variable not in all patterns
   |         pattern doesn't bind `b`

error[E0408]: variable `c` is not bound in all patterns
  --> file.rs:20:48
   |
20 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => {
intln!("{:?}", a); }
   |         ^^^^^^^^^^^   ^^^^^^^^^^^         -    ^^^^^^^^ pattern
esn't bind `c`
   |         |             |                   |
   |         |             |                   variable not in all
tterns
   |         |             pattern doesn't bind `c`
   |         pattern doesn't bind `c`

error: aborting due to 4 previous errors
```

* Have only one presentation for binding consistency errors
* Point to same binding in multiple patterns when possible
* Check inconsistent bindings in all arms
* Simplify wording of diagnostic message
* Sort emition and spans of binding errors for deterministic output
petrochenkov pushed a commit that referenced this pull request Mar 8, 2017
Clean up "pattern doesn't bind x" messages

Group "missing variable bind" spans in `or` matches and clarify wording
for the two possible cases: when a variable from the first pattern is
not in any of the subsequent patterns, and when a variable in any of the
other patterns is not in the first one.

Before:

```rust
error[E0408]: variable `a` from pattern #1 is not bound in pattern #2
  --> file.rs:10:23
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                       ^^^^^^^^^^^ pattern doesn't bind `a`

error[E0408]: variable `b` from pattern #2 is not bound in pattern #1
  --> file.rs:10:32
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                                ^ pattern doesn't bind `b`

error[E0408]: variable `a` from pattern #1 is not bound in pattern #3
  --> file.rs:10:37
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                                     ^^^^^^^^ pattern doesn't bind `a`

error[E0408]: variable `d` from pattern #1 is not bound in pattern #3
  --> file.rs:10:37
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                                     ^^^^^^^^ pattern doesn't bind `d`

error[E0408]: variable `c` from pattern #3 is not bound in pattern #1
  --> file.rs:10:43
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                                           ^ pattern doesn't bind `c`

error[E0408]: variable `d` from pattern #1 is not bound in pattern #4
  --> file.rs:10:48
   |
10 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                                                ^^^^^^^^ pattern doesn't bind `d`

error: aborting due to 6 previous errors
```

After:

```rust
error[E0408]: variable `d` is not bound in all patterns
  --> $DIR/issue-39698.rs:20:37
   |
20 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |                  -          -       ^^^^^^^^   ^^^^^^^^ pattern doesn't bind `d`
   |                  |          |       |
   |                  |          |       pattern doesn't bind `d`
   |                  |          variable not in all patterns
   |                  variable not in all patterns

error[E0408]: variable `c` is not bound in all patterns
  --> $DIR/issue-39698.rs:20:48
   |
20 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |         ^^^^^^^^^^^   ^^^^^^^^^^^         -    ^^^^^^^^ pattern doesn't bind `c`
   |         |             |                   |
   |         |             |                   variable not in all patterns
   |         |             pattern doesn't bind `c`
   |         pattern doesn't bind `c`

error[E0408]: variable `a` is not bound in all patterns
  --> $DIR/issue-39698.rs:20:37
   |
20 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |               -       ^^^^^^^^^^^   ^^^^^^^^         - variable not in all patterns
   |               |       |             |
   |               |       |             pattern doesn't bind `a`
   |               |       pattern doesn't bind `a`
   |               variable not in all patterns

error[E0408]: variable `b` is not bound in all patterns
  --> $DIR/issue-39698.rs:20:37
   |
20 |         T::T1(a, d) | T::T2(d, b) | T::T3(c) | T::T4(a) => { println!("{:?}", a); }
   |         ^^^^^^^^^^^            -    ^^^^^^^^   ^^^^^^^^ pattern doesn't bind `b`
   |         |                      |    |
   |         |                      |    pattern doesn't bind `b`
   |         |                      variable not in all patterns
   |         pattern doesn't bind `b`

error: aborting due to 4 previous errors
```

Fixes rust-lang#39698.
petrochenkov pushed a commit that referenced this pull request Jun 1, 2017
Without that flag, LLVM generates unaligned memory access instructions, which are not allowed on ARMv5.

For example, the 'hello world' example from `cargo --new` failed with:
```
$ ./hello
Hello, world!
thread 'main' panicked at 'assertion failed: end <= len', src/libcollections/vec.rs:1113
note: Run with `RUST_BACKTRACE=1` for a backtrace.
```

I traced this error back to the following assembler code in `BufWriter::flush_buf`:
```
    6f44:       e28d0018        add     r0, sp, rust-lang#24
[...]
    6f54:       e280b005        add     fp, r0, rust-lang#5
[...]
    7018:       e5cd001c        strb    r0, [sp, rust-lang#28]
    701c:       e1a0082a        lsr     r0, sl, rust-lang#16
    7020:       03a01001        moveq   r1, #1
    7024:       e5cb0002        strb    r0, [fp, #2]
    7028:       e1cba0b0        strh    sl, [fp]
```

Note that `fp` points to `sp + 29`, so the three `str*`-instructions should fill up a 32bit - value at `sp + 28`, which is later used as the value `n` in `Ok(n) => written += n`. This doesn't work on ARMv5 as the `strh` can't write to the unaligned contents of `fp`, so the upper bits of `n` won't get cleared, leading to the assertion failure in Vec::drain.

With `+strict-align`, the code works as expected.
petrochenkov pushed a commit that referenced this pull request Jun 1, 2017
ARMv5 needs +strict-align

Without that flag, LLVM generates unaligned memory access instructions, which are not allowed on ARMv5.

For example, the 'hello world' example from `cargo --new` failed with:
```
$ ./hello
Hello, world!
thread 'main' panicked at 'assertion failed: end <= len', src/libcollections/vec.rs:1113
note: Run with `RUST_BACKTRACE=1` for a backtrace.
```

I traced this error back to the following assembler code in `BufWriter::flush_buf`:
```
    6f44:       e28d0018        add     r0, sp, rust-lang#24
[...]
    6f54:       e280b005        add     fp, r0, rust-lang#5
[...]
    7018:       e5cd001c        strb    r0, [sp, rust-lang#28]
    701c:       e1a0082a        lsr     r0, sl, rust-lang#16
    7020:       03a01001        moveq   r1, #1
    7024:       e5cb0002        strb    r0, [fp, #2]
    7028:       e1cba0b0        strh    sl, [fp]
```

Note that `fp` points to `sp + 29`, so the three `str*`-instructions should fill up a 32bit - value at `sp + 28`, which is later used as the value `n` in `Ok(n) => written += n`. This doesn't work on ARMv5 as the `strh` can't write to the unaligned contents of `fp`, so the upper bits of `n` won't get cleared, leading to the assertion failure in Vec::drain.

With `+strict-align`, the code works as expected.
petrochenkov pushed a commit that referenced this pull request Dec 14, 2017
Update to Rust Nightly 2016-04-11
petrochenkov pushed a commit that referenced this pull request Jan 3, 2018
…r=michaelwoerister

Set the dwarf linkage_name to the mangled name

ref rust-lang#46453

@michaelwoerister or anyone else who knows, i'm not sure if this is the correct instance to pass here (or how to get the correct one precisely): https://github.com//m4b/rust/blob/5a94a48678ec0a20ea6a63a783e63546bf9459b1/src/librustc_trans/debuginfo/namespace.rs#L36

So don't merge this yet, I'd like to learn about correct instance first; however, I think this already fixes a bunch of weirdness i'm seeing debugging from time to time, not to mention backtraces in gdb via `bt` are now ~readable~ meaningful 🎉

E.g.:

new:
```
(gdb) bt
#0  <inline::Foo as core::convert::From<()>>::from () at /home/m4b/tmp/bad_debug/inline.rs:11
#1  0x000055555555a35d in inline::deadbeef () at /home/m4b/tmp/bad_debug/inline.rs:16
#2  0x000055555555a380 in inline::main () at /home/m4b/tmp/bad_debug/inline.rs:20
```

old:
```
(gdb) bt
#0  inline::{{impl}}::from () at /home/m4b/tmp/bad_debug/inline.rs:11
#1  0x000055555555b0ed in inline::deadbeef () at /home/m4b/tmp/bad_debug/inline.rs:16
#2  0x000055555555b120 in inline::main () at /home/m4b/tmp/bad_debug/inline.rs:20
```
petrochenkov pushed a commit that referenced this pull request Jan 22, 2018
When given the following code:

```rust
fn give_any<F: for<'r> FnOnce(&'r ())>(f: F) {
    f(&());
}

fn main() {
    let mut x = None;
    give_any(|y| x = Some(y));
}
```

provide a custom error:

```
error: borrowed data cannot be moved outside of its closure
 --> file.rs:7:27
  |
6 |     let mut x = None;
  |         ----- binding declared outside of closure
7 |     give_any(|y| x = Some(y));
  |              ---          ^ cannot be assigned to binding outside of its closure
  |              |
  |              closure you can't escape
```

instead of the generic lifetime error:

```
error[E0495]: cannot infer an appropriate lifetime due to conflicting requirements
 --> file.rs:7:27
  |
7 |     give_any(|y| x = Some(y));
  |                           ^
  |
note: first, the lifetime cannot outlive the anonymous lifetime #2 defined on the body at 7:14...
 --> file.rs:7:14
  |
7 |     give_any(|y| x = Some(y));
  |              ^^^^^^^^^^^^^^^
note: ...so that expression is assignable (expected &(), found &())
 --> file.rs:7:27
  |
7 |     give_any(|y| x = Some(y));
  |                           ^
note: but, the lifetime must be valid for the block suffix following statement 0 at 6:5...
 --> file.rs:6:5
  |
6 | /     let mut x = None;
7 | |     give_any(|y| x = Some(y));
8 | | }
  | |_^
note: ...so that variable is valid at time of its declaration
 --> file.rs:6:9
  |
6 |     let mut x = None;
  |         ^^^^^
```
petrochenkov pushed a commit that referenced this pull request Jan 22, 2018
…sakis

Custom error when moving arg outside of its closure

When given the following code:

```rust
fn give_any<F: for<'r> FnOnce(&'r ())>(f: F) {
    f(&());
}

fn main() {
    let mut x = None;
    give_any(|y| x = Some(y));
}
```

provide a custom error:

```
error: borrowed data cannot be moved outside of its closure
 --> file.rs:7:27
  |
6 |     let mut x = None;
  |         ----- borrowed data cannot be moved into here...
7 |     give_any(|y| x = Some(y));
  |              ---          ^ cannot be moved outside of its closure
  |              |
  |              ...because it cannot outlive this closure
```

instead of the generic lifetime error:

```
error[E0495]: cannot infer an appropriate lifetime due to conflicting requirements
 --> file.rs:7:27
  |
7 |     give_any(|y| x = Some(y));
  |                           ^
  |
note: first, the lifetime cannot outlive the anonymous lifetime #2 defined on the body at 7:14...
 --> file.rs:7:14
  |
7 |     give_any(|y| x = Some(y));
  |              ^^^^^^^^^^^^^^^
note: ...so that expression is assignable (expected &(), found &())
 --> file.rs:7:27
  |
7 |     give_any(|y| x = Some(y));
  |                           ^
note: but, the lifetime must be valid for the block suffix following statement 0 at 6:5...
 --> file.rs:6:5
  |
6 | /     let mut x = None;
7 | |     give_any(|y| x = Some(y));
8 | | }
  | |_^
note: ...so that variable is valid at time of its declaration
 --> file.rs:6:9
  |
6 |     let mut x = None;
  |         ^^^^^
```

Fix rust-lang#45983.
petrochenkov pushed a commit that referenced this pull request Apr 12, 2018
Building for x86_64-unknown-linux-musl currently results in an executable lacking debug information for musl libc itself. If you request a backtrace in GDB while control flow is within musl – including sycalls made by musl – the result looks like:

#0  0x0000000000434b46 in __cp_end ()
#1  0x0000000000432dbd in __syscall_cp_c ()
#2  0x0000000000000000 in ?? ()

i.e. not very helpful. Adding --enable-debug resolves this, and --enable-optimize re-enables optimisations which default to off given the previous flag.
petrochenkov pushed a commit that referenced this pull request Apr 12, 2018
Add --enable-debug flag to musl CI build script

Building for x86_64-unknown-linux-musl currently results in an executable lacking debug information for musl libc itself. If you request a backtrace in GDB while control flow is within musl – including sycalls made by musl – the result looks like:

```
#0  0x0000000000434b46 in __cp_end ()
#1  0x0000000000432dbd in __syscall_cp_c ()
#2  0x0000000000000000 in ?? ()
```

i.e. not very helpful. Adding --enable-debug resolves this, and --enable-optimize re-enables optimisations which default to off given the previous flag.
petrochenkov pushed a commit that referenced this pull request May 18, 2018
There is a hot path through `opt_normalize_projection_type`:
- `try_start` does a cache lookup (#1).
- The result is a `NormalizedTy`.
- There are no unresolved type vars, so we call `complete`.
- `complete` does *another* cache lookup (#2), then calls
  `SnapshotMap::insert`.
- `insert` does *another* cache lookup (#3), inserting the same value
  that's already in the cache.

This patch optimizes this hot path by introducing `complete_normalized`,
for use when the value is known in advance to be a `NormalizedTy`. It
always avoids lookup #2. Furthermore, if the `NormalizedTy`'s
obligations are empty (the common case), we know that lookup #3 would be
a no-op, so we avoid it, while inserting a Noop into the `SnapshotMap`'s
undo log.
petrochenkov pushed a commit that referenced this pull request Oct 29, 2018
petrochenkov pushed a commit that referenced this pull request May 24, 2019
…erister

Use arenas to avoid Lrc in queries #2

The `Remove subtle Default impl for Value` makes the compilation stop due earlier due to cycle errors, since there's no longer a default value to continue the compilation with.

Based on rust-lang#59540.
petrochenkov pushed a commit that referenced this pull request May 24, 2019
Rollup of 6 pull requests

Successful merges:

 - rust-lang#59545 (Use arenas to avoid Lrc in queries #2)
 - rust-lang#61054 (Suggest dereferencing on assignment to mutable borrow)
 - rust-lang#61056 (tweak discriminant on non-nullary enum diagnostic)
 - rust-lang#61082 (fix dangling reference in Vec::append)
 - rust-lang#61086 (Box::into_unique: do the reborrow-to-raw *after* destroying the Box)
 - rust-lang#61098 (Fix overflowing literal lint in loops)

Failed merges:

r? @ghost
petrochenkov pushed a commit that referenced this pull request Jun 5, 2019
Some review feedback and other misc tweaks
petrochenkov pushed a commit that referenced this pull request Jul 11, 2019
Prerequisites from dep graph refactoring #2

Split out from rust-lang#60035 and overlaps with rust-lang#60559.
petrochenkov pushed a commit that referenced this pull request Jul 11, 2019
Rollup of 7 pull requests

Successful merges:

 - rust-lang#61665 (core: check for pointer equality when comparing Eq slices)
 - rust-lang#61923 (Prerequisites from dep graph refactoring #2)
 - rust-lang#62270 (Move async-await tests from run-pass to ui)
 - rust-lang#62425 (filedesc: don't use ioctl(FIOCLEX) on Linux)
 - rust-lang#62476 (Continue refactoring macro expansion and resolution)
 - rust-lang#62519 (Regression test for HRTB bug (issue 30786).)
 - rust-lang#62557 (Fix typo in libcore/intrinsics.rs)

Failed merges:

r? @ghost
petrochenkov pushed a commit that referenced this pull request Jul 21, 2019
petrochenkov pushed a commit that referenced this pull request Sep 7, 2019
Support static and dynamic linking mode for vxWorks in running test suite
petrochenkov pushed a commit that referenced this pull request Oct 13, 2019
Add `Instance::resolve_for_fn_ptr` (RFC 2091 #2/N)

Supercedes: rust-lang#65082
Depends on: rust-lang#65037
Tracking issue: rust-lang#47809
[RFC text](https://github.com/rust-lang/rfcs/blob/master/text/2091-inline-semantic.md)

steps taken:

* [x] add a `ReifyShim` that is similar to `VirtualShim` in behavior (see rust-lang#54183)
* [x] add `ty::Instance::resolve_for_fn_ptr` (leave `ty::Instance::resolve_vtable` alone), migrate appropriate callers
* [x] `resolve_for_fn_ptr` returns the shim if calling a `#[track_caller]` function
petrochenkov pushed a commit that referenced this pull request May 30, 2020
fix comment


add newline for tidy fmt error...


edit suggestion message


change the suggestion message to better handle cases with binding modes


Apply suggestions from estebank code review

Co-authored-by: Esteban Kuber <[email protected]>
edits to address source review


Apply suggestions from estebank code review #2

Co-authored-by: Esteban Kuber <[email protected]>
update test files
petrochenkov pushed a commit that referenced this pull request Jun 20, 2020
update from origin 2020-06-10
petrochenkov pushed a commit that referenced this pull request Jul 2, 2020
petrochenkov pushed a commit that referenced this pull request Jul 2, 2020
Stabilize `#[track_caller]`.

# Stabilization Report

RFC: [2091]
Tracking issue: rust-lang#47809

## Summary

From the [rustc-dev-guide chapter][dev-guide]:

> Take this example program:

```rust
fn main() {
    let foo: Option<()> = None;
    foo.unwrap(); // this should produce a useful panic message!
}
```

> Prior to Rust 1.42, panics like this `unwrap()` printed a location in libcore:

```
$ rustc +1.41.0 example.rs; example.exe
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value',...core\macros\mod.rs:15:40
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
```

> As of 1.42, we get a much more helpful message:

```
$ rustc +1.42.0 example.rs; example.exe
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', example.rs:3:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```

> These error messages are achieved through a combination of changes to `panic!` internals to make use of `core::panic::Location::caller` and a number of `#[track_caller]` annotations in the standard library which propagate caller information.

The attribute adds an implicit caller location argument to the ABI of annotated functions, but does not affect the type or MIR of the function. We implement the feature entirely in codegen and in the const evaluator.

## Bottom Line

This PR stabilizes the use of `#[track_caller]` everywhere, including traits and extern blocks. It also stabilizes `core::panic::Location::caller`, although the use of that function in a const context remains gated by `#![feature(const_caller_location)]`.

The implementation for the feature already changed the output of panic messages for a number of std functions, as described in the [1.42 release announcement]. The attribute's use in `Index` and `IndexMut` traits is visible to users since 1.44.

## Tests

All of the tests for this feature live under [src/test/ui/rfc-2091-track-caller][tests] in the repo.

Noteworthy cases:

* [use of attr in std]
  * validates user-facing benefit of the feature
* [trait attribute inheritance]
  * covers subtle behavior designed during implementation and not RFC'd
* [const/codegen equivalence]
  * this was the result of a suspected edge case and investigation
* [diverging function support]
  * covers an unresolved question from the RFC
* [fn pointers and shims]
  * covers important potential sources of unsoundness

## Documentation

The rustc-dev-guide now has a chapter on [Implicit Caller Location][dev-guide].

I have an [open PR to the reference][attr-reference-pr] documenting the attribute.

The intrinsic's [wrapper] includes some examples as well.

## Implementation History

* 2019-10-02: [`#[track_caller]` feature gate (RFC 2091 1/N) rust-lang#65037](rust-lang#65037)
  * Picked up the patch that @ayosec had started on the feature gate.
* 2019-10-13: [Add `Instance::resolve_for_fn_ptr` (RFC 2091 #2/N) rust-lang#65182](rust-lang#65182)
* 2019-10-20: ~~[WIP Add MIR argument for #[track_caller] (RFC 2091 3/N) rust-lang#65258](rust-lang#65258
  * Abandoned approach to send location as a MIR argument.
* 2019-10-28: [`std::panic::Location` is a lang_item, add `core::intrinsics::caller_location` (RFC 2091 3/N) rust-lang#65664](rust-lang#65664)
* 2019-12-07: [Implement #[track_caller] attribute. (RFC 2091 4/N) rust-lang#65881](rust-lang#65881)
* 2020-01-04: [libstd uses `core::panic::Location` where possible. rust-lang#67137](rust-lang#67137)
* 2020-01-08: [`Option::{expect,unwrap}` and `Result::{expect, expect_err, unwrap, unwrap_err}` have `#[track_caller]` rust-lang#67887](rust-lang#67887)
* 2020-01-20: [Fix #[track_caller] and function pointers rust-lang#68302](rust-lang#68302) (fixed rust-lang#68178)
* 2020-03-23: [#[track_caller] in traits rust-lang#69251](rust-lang#69251)
* 2020-03-24: [#[track_caller] on core::ops::{Index, IndexMut}. rust-lang#70234](rust-lang#70234)
* 2020-04-08 [Support `#[track_caller]` on functions in `extern "Rust" { ... }` rust-lang#70916](rust-lang#70916)

## Unresolveds

### From the RFC

> Currently the RFC simply prohibit applying #[track_caller] to trait methods as a future-proofing
> measure.

**Resolved.** See the dev-guide documentation and the tests section above.

> Diverging functions should be supported.

**Resolved.** See the tests section above.

> The closure foo::{{closure}} should inherit most attributes applied to the function foo, ...

**Resolved.** This unknown was related to specifics of the implementation which were made irrelevant by the final implementation.

### Binary Size

I [instrumented track_caller to use custom sections][measure-size] in a local build and discovered relatively minor binary size usage for the feature overall. I'm leaving the issue open to discuss whether we want to upstream custom section support.

There's an [open issue to discuss mitigation strategies][mitigate-size]. Some decisions remain about the "right" strategies to reduce size without overly constraining the compiler implementation. I'd be excited to see someone carry that work forward but my opinion is that we shouldn't block stabilization on implementing compiler flags for redaction.

### Specialization

There's an [open issue][specialization] on the semantics of the attribute in specialization chains. I'm inclined to move forward with stabilization without an exact resolution here given that specialization is itself unstable, but I also think it should be an easy question to resolve.

### Location only points to the start of a call span

rust-lang#69977 was resolved by rust-lang#73182, and the next step should probably be to [extend `Location` with a notion of the end of a call](rust-lang#73554).

### Regression of std's panic messages

rust-lang#70963 should be resolved by serializing span hygeine to crate metadata: rust-lang#68686.

[2091]: https://github.com/rust-lang/rfcs/blob/master/text/2091-inline-semantic.md
[dev-guide]: https://rustc-dev-guide.rust-lang.org/codegen/implicit-caller-location.html
[specialization]: rust-lang#70293
[measure-size]: rust-lang#70579
[mitigate-size]: rust-lang#70580
[attr-reference-pr]: rust-lang/reference#742
[wrapper]: https://doc.rust-lang.org/nightly/core/panic/struct.Location.html#method.caller
[tests]: https://github.com/rust-lang/rust/tree/master/src/test/ui/rfc-2091-track-caller
[const/codegen equivalence]: https://github.com/rust-lang/rust/blob/master/src/test/ui/rfc-2091-track-caller/caller-location-fnptr-rt-ctfe-equiv.rs
[diverging function support]: https://github.com/rust-lang/rust/blob/master/src/test/ui/rfc-2091-track-caller/diverging-caller-location.rs
[use of attr in std]: https://github.com/rust-lang/rust/blob/master/src/test/ui/rfc-2091-track-caller/std-panic-locations.rs
[fn pointers and shims]: https://github.com/rust-lang/rust/blob/master/src/test/ui/rfc-2091-track-caller/tracked-fn-ptr-with-arg.rs
[trait attribute inheritance]: https://github.com/rust-lang/rust/blob/master/src/test/ui/rfc-2091-track-caller/tracked-trait-impls.rs
[1.42 release announcement]: https://blog.rust-lang.org/2020/03/12/Rust-1.42.html#useful-line-numbers-in-option-and-result-panic-messages
petrochenkov pushed a commit that referenced this pull request Oct 8, 2020
This is a combination of 18 commits.

Commit #2:

Additional examples and some small improvements.

Commit #3:

fixed mir-opt non-mir extensions and spanview title elements

Corrected a fairly recent assumption in runtest.rs that all MIR dump
files end in .mir. (It was appending .mir to the graphviz .dot and
spanview .html file names when generating blessed output files. That
also left outdated files in the baseline alongside the files with the
incorrect names, which I've now removed.)

Updated spanview HTML title elements to match their content, replacing a
hardcoded and incorrect name that was left in accidentally when
originally submitted.

Commit #4:

added more test examples

also improved Makefiles with support for non-zero exit status and to
force validation of tests unless a specific test overrides it with a
specific comment.

Commit rust-lang#5:

Fixed rare issues after testing on real-world crate

Commit rust-lang#6:

Addressed PR feedback, and removed temporary -Zexperimental-coverage

-Zinstrument-coverage once again supports the latest capabilities of
LLVM instrprof coverage instrumentation.

Also fixed a bug in spanview.

Commit rust-lang#7:

Fix closure handling, add tests for closures and inner items

And cleaned up other tests for consistency, and to make it more clear
where spans start/end by breaking up lines.

Commit rust-lang#8:

renamed "typical" test results "expected"

Now that the `llvm-cov show` tests are improved to normally expect
matching actuals, and to allow individual tests to override that
expectation.

Commit rust-lang#9:

test coverage of inline generic struct function

Commit rust-lang#10:

Addressed review feedback

* Removed unnecessary Unreachable filter.
* Replaced a match wildcard with remining variants.
* Added more comments to help clarify the role of successors() in the
CFG traversal

Commit rust-lang#11:

refactoring based on feedback

* refactored `fn coverage_spans()`.
* changed the way I expand an empty coverage span to improve performance
* fixed a typo that I had accidently left in, in visit.rs

Commit rust-lang#12:

Optimized use of SourceMap and SourceFile

Commit rust-lang#13:

Fixed a regression, and synched with upstream

Some generated test file names changed due to some new change upstream.

Commit rust-lang#14:

Stripping out crate disambiguators from demangled names

These can vary depending on the test platform.

Commit rust-lang#15:

Ignore llvm-cov show diff on test with generics, expand IO error message

Tests with generics produce llvm-cov show results with demangled names
that can include an unstable "crate disambiguator" (hex value). The
value changes when run in the Rust CI Windows environment. I added a sed
filter to strip them out (in a prior commit), but sed also appears to
fail in the same environment. Until I can figure out a workaround, I'm
just going to ignore this specific test result. I added a FIXME to
follow up later, but it's not that critical.

I also saw an error with Windows GNU, but the IO error did not
specify a path for the directory or file that triggered the error. I
updated the error messages to provide more info for next, time but also
noticed some other tests with similar steps did not fail. Looks
spurious.

Commit rust-lang#16:

Modify rust-demangler to strip disambiguators by default

Commit rust-lang#17:

Remove std::process::exit from coverage tests

Due to Issue rust-lang#77553, programs that call std::process::exit() do not
generate coverage results on Windows MSVC.

Commit rust-lang#18:

fix: test file paths exceeding Windows max path len
petrochenkov pushed a commit that referenced this pull request Dec 2, 2020
```
Benchmark #1: ./raytracer_cg_clif_pre
  Time (mean ± σ):      9.553 s ±  0.129 s    [User: 9.543 s, System: 0.008 s]
  Range (min … max):    9.438 s …  9.837 s    10 runs

Benchmark #2: ./raytracer_cg_clif_post
  Time (mean ± σ):      9.463 s ±  0.055 s    [User: 9.452 s, System: 0.008 s]
  Range (min … max):    9.387 s …  9.518 s    10 runs

Summary
  './raytracer_cg_clif_post' ran
    1.01 ± 0.01 times faster than './raytracer_cg_clif_pre'
```
petrochenkov pushed a commit that referenced this pull request Dec 2, 2020
Don't run `resolve_vars_if_possible` in `normalize_erasing_regions`

Neither `@eddyb` nor I could figure out what this was for. I changed it to `assert_eq!(normalized_value, infcx.resolve_vars_if_possible(&normalized_value));` and it passed the UI test suite.

<details><summary>

Outdated, I figured out the issue - `needs_infer()` needs to come _after_ erasing the lifetimes

</summary>

Strangely, if I change it to `assert!(!normalized_value.needs_infer())` it panics almost immediately:

```
query stack during panic:
#0 [normalize_generic_arg_after_erasing_regions] normalizing `<str::IsWhitespace as str::pattern::Pattern>::Searcher`
#1 [needs_drop_raw] computing whether `str::iter::Split<str::IsWhitespace>` needs drop
#2 [mir_built] building MIR for `str::<impl str>::split_whitespace`
#3 [unsafety_check_result] unsafety-checking `str::<impl str>::split_whitespace`
#4 [mir_const] processing MIR for `str::<impl str>::split_whitespace`
rust-lang#5 [mir_promoted] processing `str::<impl str>::split_whitespace`
rust-lang#6 [mir_borrowck] borrow-checking `str::<impl str>::split_whitespace`
rust-lang#7 [analysis] running analysis passes on this crate
end of query stack
```

I'm not entirely sure what's going on - maybe the two disagree?

</details>

For context, this came up while reviewing rust-lang#77467 (cc `@lcnr).`

Possibly this needs a crater run?

r? `@nikomatsakis`
cc `@matthewjasper`
petrochenkov pushed a commit that referenced this pull request Feb 14, 2021
HWAddressSanitizer support

#  Motivation
Compared to regular ASan, HWASan has a [smaller overhead](https://source.android.com/devices/tech/debug/hwasan). The difference in practice is that HWASan'ed code is more usable, e.g. Android device compiled with HWASan can be used as a daily driver.

# Example
```
fn main() {
    let xs = vec![0, 1, 2, 3];
    let _y = unsafe { *xs.as_ptr().offset(4) };
}
```
```
==223==ERROR: HWAddressSanitizer: tag-mismatch on address 0xefdeffff0050 at pc 0xaaaad00b3468
READ of size 4 at 0xefdeffff0050 tags: e5/00 (ptr/mem) in thread T0
    #0 0xaaaad00b3464  (/root/main+0x53464)
    #1 0xaaaad00b39b4  (/root/main+0x539b4)
    #2 0xaaaad00b3dd0  (/root/main+0x53dd0)
    #3 0xaaaad00b61dc  (/root/main+0x561dc)
    #4 0xaaaad00c0574  (/root/main+0x60574)
    rust-lang#5 0xaaaad00b6290  (/root/main+0x56290)
    rust-lang#6 0xaaaad00b6170  (/root/main+0x56170)
    rust-lang#7 0xaaaad00b3578  (/root/main+0x53578)
    rust-lang#8 0xffff81345e70  (/lib64/libc.so.6+0x20e70)
    rust-lang#9 0xaaaad0096310  (/root/main+0x36310)

[0xefdeffff0040,0xefdeffff0060) is a small allocated heap chunk; size: 32 offset: 16
0xefdeffff0050 is located 0 bytes to the right of 16-byte region [0xefdeffff0040,0xefdeffff0050)
allocated here:
    #0 0xaaaad009bcdc  (/root/main+0x3bcdc)
    #1 0xaaaad00b1eb0  (/root/main+0x51eb0)
    #2 0xaaaad00b20d4  (/root/main+0x520d4)
    #3 0xaaaad00b2800  (/root/main+0x52800)
    #4 0xaaaad00b1cf4  (/root/main+0x51cf4)
    rust-lang#5 0xaaaad00b33d4  (/root/main+0x533d4)
    rust-lang#6 0xaaaad00b39b4  (/root/main+0x539b4)
    rust-lang#7 0xaaaad00b61dc  (/root/main+0x561dc)
    rust-lang#8 0xaaaad00b3578  (/root/main+0x53578)
    rust-lang#9 0xaaaad0096310  (/root/main+0x36310)

Thread: T0 0xeffe00002000 stack: [0xffffc0590000,0xffffc0d90000) sz: 8388608 tls: [0xffff81521020,0xffff815217d0)
Memory tags around the buggy address (one tag corresponds to 16 bytes):
  0xfefcefffef80: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefcefffef90: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefcefffefa0: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefcefffefb0: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefcefffefc0: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefcefffefd0: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefcefffefe0: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefcefffeff0: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
=>0xfefceffff000: a2  a2  05  00  e5 [00] 00  00  00  00  00  00  00  00  00  00
  0xfefceffff010: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefceffff020: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefceffff030: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefceffff040: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefceffff050: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefceffff060: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefceffff070: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
  0xfefceffff080: 00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00
Tags for short granules around the buggy address (one tag corresponds to 16 bytes):
  0xfefcefffeff0: ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..
=>0xfefceffff000: ..  ..  c5  ..  .. [..] ..  ..  ..  ..  ..  ..  ..  ..  ..  ..
  0xfefceffff010: ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..  ..
See https://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html#short-granules for a description of short granule tags
Registers where the failure occurred (pc 0xaaaad00b3468):
    x0  e500efdeffff0050  x1  0000000000000004  x2  0000ffffc0d8f5a0  x3  0200efff00000000
    x4  0000ffffc0d8f4c0  x5  000000000000004f  x6  00000ffffc0d8f36  x7  0000efff00000000
    x8  e500efdeffff0050  x9  0200efff00000000  x10 0000000000000000  x11 0200efff00000000
    x12 0200effe000006b0  x13 0200effe000006b0  x14 0000000000000008  x15 00000000c00000cf
    x16 0000aaaad00a0afc  x17 0000000000000003  x18 0000000000000001  x19 0000ffffc0d8f718
    x20 ba00ffffc0d8f7a0  x21 0000aaaad00962e0  x22 0000000000000000  x23 0000000000000000
    x24 0000000000000000  x25 0000000000000000  x26 0000000000000000  x27 0000000000000000
    x28 0000000000000000  x29 0000ffffc0d8f650  x30 0000aaaad00b3468
```

# Comments/Caveats
* HWASan is only supported on arm64.
* I'm not sure if I should add a feature gate or piggyback on the existing one for sanitizers.
* HWASan requires `-C target-feature=+tagged-globals`. That flag should probably be set transparently to the user. Not sure how to go about that.

# TODO
* Need more tests.
* Update documentation.
* Fix symbolization.
* Integrate with CI
petrochenkov pushed a commit that referenced this pull request Feb 14, 2021
…fetime-error, r=estebank

Fix suggestion to introduce explicit lifetime

Addresses rust-lang#81650

Error message after fix:

```
error[E0311]: the parameter type `T` may not live long enough
  --> src/main.rs:25:11
   |
24 | fn play_with<T: Animal + Send>(scope: &Scope, animal: T) {
   |              -- help: consider adding an explicit lifetime bound...: `T: 'a +`
25 |     scope.spawn(move |_| {
   |           ^^^^^
   |
note: the parameter type `T` must be valid for the anonymous lifetime #2 defined on the function body at 24:1...
  --> src/main.rs:24:1
   |
24 | fn play_with<T: Animal + Send>(scope: &Scope, animal: T) {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: ...so that the type `[closure@src/main.rs:25:17: 27:6]` will meet its required lifetime bounds
  --> src/main.rs:25:11
   |
25 |     scope.spawn(move |_| {
   |           ^^^^^
```
petrochenkov pushed a commit that referenced this pull request Mar 21, 2021
petrochenkov pushed a commit that referenced this pull request Jul 10, 2021
Stop generating `alloca`s & `memcmp` for simple short array equality

Example:
```rust
pub fn demo(x: [u16; 6], y: [u16; 6]) -> bool { x == y }
```

Before:
```llvm
define zeroext i1 `@_ZN10playground4demo17h48537f7eac23948fE(i96` %0, i96 %1) unnamed_addr #0 {
start:
  %y = alloca [6 x i16], align 8
  %x = alloca [6 x i16], align 8
  %.0..sroa_cast = bitcast [6 x i16]* %x to i96*
  store i96 %0, i96* %.0..sroa_cast, align 8
  %.0..sroa_cast3 = bitcast [6 x i16]* %y to i96*
  store i96 %1, i96* %.0..sroa_cast3, align 8
  %_11.i.i.i = bitcast [6 x i16]* %x to i8*
  %_14.i.i.i = bitcast [6 x i16]* %y to i8*
  %bcmp.i.i.i = call i32 `@bcmp(i8*` nonnull dereferenceable(12) %_11.i.i.i, i8* nonnull dereferenceable(12) %_14.i.i.i, i64 12) #2, !alias.scope !2
  %2 = icmp eq i32 %bcmp.i.i.i, 0
  ret i1 %2
}
```
```x86
playground::demo: # `@playground::demo`
	sub	rsp, 32
	mov	qword ptr [rsp], rdi
	mov	dword ptr [rsp + 8], esi
	mov	qword ptr [rsp + 16], rdx
	mov	dword ptr [rsp + 24], ecx
	xor	rdi, rdx
	xor	esi, ecx
	or	rsi, rdi
	sete	al
	add	rsp, 32
	ret
```

After:
```llvm
define zeroext i1 `@_ZN4mini4demo17h7a8994aaa314c981E(i96` %0, i96 %1) unnamed_addr #0 {
start:
  %2 = icmp eq i96 %0, %1
  ret i1 %2
}
```
```x86
_ZN4mini4demo17h7a8994aaa314c981E:
	xor	rcx, r8
	xor	edx, r9d
	or	rdx, rcx
	sete	al
	ret
```
petrochenkov pushed a commit that referenced this pull request Aug 25, 2021
Otherwise, we can get into a situation where you have
a subtype obligation `#1 <: #2` pending, #1 is constrained
by `check_casts`, but #2` is unaffected.

Co-authored-by: Niko Matsakis <[email protected]>
petrochenkov pushed a commit that referenced this pull request Oct 17, 2021
Improve last commit of rust_lang#75644
petrochenkov pushed a commit that referenced this pull request Apr 19, 2023
There were a series of unfortunate interactions here. Here's an MCVE of the test this fixes (committed as `tests/ui/meta/no_std-extern-libc.rs`):
```rust
 #![crate_type = "lib"]
 #![no_std]
 #![feature(rustc_private)]
extern crate libc;
```

Before, this would give an error about duplicate versions of libc:
```
error[E0464]: multiple candidates for `rlib` dependency `libc` found
  --> fake-test-src-base/allocator/no_std-alloc-error-handler-default.rs:15:1
   |
LL | extern crate libc;
   | ^^^^^^^^^^^^^^^^^^
   |
   = note: candidate #1: /home/gh-jyn514/rust/build/aarch64-unknown-linux-gnu/stage2/lib/rustlib/aarch64-unknown-linux-gnu/lib/liblibc-358db1024b7d9957.rlib
   = note: candidate #2: /home/gh-jyn514/rust/build/aarch64-unknown-linux-gnu/stage2/lib/rustlib/aarch64-unknown-linux-gnu/lib/liblibc-ebc478710122a279.rmeta
```
Both these versions were downloaded from CI, but one came from the `rust-std` component and one came from `rustc-dev`:
```
; tar -tf build/cache/f2d9a3d0771504f1ae776226a5799dcb4408a91a/rust-std-nightly-x86_64-unknown-linux-gnu.tar.xz | grep liblibc
rust-std-nightly-x86_64-unknown-linux-gnu/rust-std-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-68a2d9e195dd6ed2.rlib
; tar -tf build/cache/f2d9a3d0771504f1ae776226a5799dcb4408a91a/rustc-dev-nightly-x86_64-unknown-linux-gnu.tar.xz | grep liblibc
rustc-dev-nightly-x86_64-unknown-linux-gnu/rustc-dev/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-f226c9fbdd92a0fd.rmeta
```
The fix was to only copy files from `rust-std` unless a Step explicitly requests for the `rustc-dev` components to be available by calling `builder.ensure(compile::Rustc)`.

To avoid having to re-parse the `rustc-dev.tar.xz` tarball every time, which is quite slow, this adds a new `build/host/ci-rustc/.rustc-dev-contents` cache file which stores only the names of files we need to copy into the sysroot.

This also allows reverting the hack in
rust-lang#110121; now that we only copy
rustc-dev on-demand, we can correctly add the `Rustc` check artifacts
into the sysroot, so that this works correctly even when
`download-rustc` is forced to `true`.

---

See rust-lang#108767 (comment) for why `no_std` is required for the MCVE test to fail; it's complicated and not particularly important.

Fixes rust-lang#108767.
petrochenkov pushed a commit that referenced this pull request Apr 19, 2023
…tlarsan68

Fix no_std tests that load libc from the sysroot when download-rustc is enabled

There were a series of unfortunate interactions here. Here's an MCVE of the test this fixes (committed as `tests/ui/meta/no_std-extern-libc.rs`):
```rust
#![crate_type = "lib"]
#![no_std]
#![feature(rustc_private)]
extern crate libc;
```

Before, this would give an error about duplicate versions of libc:
```
error[E0464]: multiple candidates for `rlib` dependency `libc` found
  --> fake-test-src-base/allocator/no_std-alloc-error-handler-default.rs:15:1
   |
LL | extern crate libc;
   | ^^^^^^^^^^^^^^^^^^
   |
   = note: candidate #1: /home/gh-jyn514/rust/build/aarch64-unknown-linux-gnu/stage2/lib/rustlib/aarch64-unknown-linux-gnu/lib/liblibc-358db1024b7d9957.rlib
   = note: candidate #2: /home/gh-jyn514/rust/build/aarch64-unknown-linux-gnu/stage2/lib/rustlib/aarch64-unknown-linux-gnu/lib/liblibc-ebc478710122a279.rmeta
```
Both these versions were downloaded from CI, but one came from the `rust-std` component and one came from `rustc-dev`:
```
; tar -tf build/cache/f2d9a3d0771504f1ae776226a5799dcb4408a91a/rust-std-nightly-x86_64-unknown-linux-gnu.tar.xz | grep liblibc
rust-std-nightly-x86_64-unknown-linux-gnu/rust-std-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-68a2d9e195dd6ed2.rlib
; tar -tf build/cache/f2d9a3d0771504f1ae776226a5799dcb4408a91a/rustc-dev-nightly-x86_64-unknown-linux-gnu.tar.xz | grep liblibc
rustc-dev-nightly-x86_64-unknown-linux-gnu/rustc-dev/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-f226c9fbdd92a0fd.rmeta
```
The fix was to only copy files from `rust-std` unless a Step explicitly requests for the `rustc-dev` components to be available by calling `builder.ensure(compile::Rustc)`.

To avoid having to re-parse the `rustc-dev.tar.xz` tarball every time, which is quite slow, this adds a new `build/host/ci-rustc/.rustc-dev-contents` cache file which stores only the names of files we need to copy into the sysroot.

This also allows reverting the hack in rust-lang#110121; now that we only copy rustc-dev on-demand, we can correctly add the `Rustc` check artifacts into the sysroot, so that this works correctly even when `download-rustc` is forced to `true` and some tool depends on a local change to `compiler`.

---

See rust-lang#108767 (comment) for why `no_std` is required for the MCVE test to fail; it's complicated and not particularly important.

Fixes rust-lang#108767.
petrochenkov pushed a commit that referenced this pull request May 5, 2023
…t, r=tmiasko

Encode def span for foreign return-position `impl Trait` in trait

Fixes rust-lang#111031, yet another def-span encoding issue :/

Includes a smaller repro than the issue, but I can confirm it ICEs:

```
query stack during panic:
#0 [def_span] looking up span for `rpitit::Foo::bar::{opaque#0}`
#1 [object_safety_violations] determining object safety of trait `rpitit::Foo`
#2 [check_is_object_safe] checking if trait `rpitit::Foo` is object safe
#3 [typeck] type-checking `main`
#4 [used_trait_imports] finding used_trait_imports `main`
rust-lang#5 [analysis] running analysis passes on this crate
```

Luckily since this only affects nightly, this desn't need to be backported.
petrochenkov pushed a commit that referenced this pull request Jun 9, 2023
…i-obk

Add Terminator conversion from MIR to SMIR, part #2

r? `@oli-obk`
petrochenkov pushed a commit that referenced this pull request Jun 9, 2023
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#111250 (Add Terminator conversion from MIR to SMIR, part #2)
 - rust-lang#112310 (Add new Tier-3 targets: `loongarch64-unknown-none*`)
 - rust-lang#112334 (Add myself to highfive rotation)
 - rust-lang#112340 (remove `TyCtxt::has_error_field` helper method)
 - rust-lang#112343 (Prevent emitting `missing_docs` for `pub extern crate`)
 - rust-lang#112350 (Avoid duplicate type sanitization of local decls in borrowck)
 - rust-lang#112356 (Fix comment for `get_region_var_origins`)
 - rust-lang#112358 (Remove default visitor impl in region constraint generation)

r? `@ghost`
`@rustbot` modify labels: rollup
petrochenkov pushed a commit that referenced this pull request Aug 7, 2023
…r=flip1995

Fix integration tests #2

fix integration tests.

It turned out that the following tests fail to build at all:

chalk, combine, stdarch and hyper.

This is often a problem of passing `--all-targets --all-features`, in case of combine though, outdated deps were to blame.

I have opened tickets against combine and rustfmt
rust-lang/rustfmt#5859
Marwes/combine#357

should we just remove the other failing repos? :/

changelog: fix integration tests on ci
petrochenkov pushed a commit that referenced this pull request Dec 5, 2023
Change prefetch to avoid deadlock

Was abled to reproduce the deadlock in rust-lang#118205 and created a coredump when it happen. When looking at the backtraces  I noticed that the prefetch of exported_symbols (Thread 17 frame 4) started after the "actual" exported_symbols (Thread 2 frame 18) but it also is working on some of the collect_crate_mono_items (Thread 17 frame12 ) that Thread 2 is blocked on resulting in a deadlock.

This PR results in less parallell work that can be done at the same time but from what I can find we do not call the query exported_symbols from multiple places in the same join call any more.

```
Thread 17 (Thread 0x7f87b6299700 (LWP 11370)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f87be5166a9 in <parking_lot::condvar::Condvar>::wait_until_internal () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
#2  0x00007f87be12d854 in <rustc_query_system::query::job::QueryLatch>::wait_on () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
#3  0x00007f87bd27d16f in rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::CrateNum, rustc_middle::query::erase::Erased<[u8; 16]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
#4  0x00007f87bd0b5b6a in rustc_query_impl::query_impl::exported_symbols::get_query_non_incr::__rust_end_short_backtrace () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#5  0x00007f87bdaebb0a in rustc_metadata::rmeta::encoder::encode_metadata::{closure#1}::{closure#1} () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#6  0x00007f87bdae1509 in rayon_core::join::join_context::call_b::<core::option::Option<rustc_data_structures::marker::FromDyn<&[(rustc_middle::middle::exported_symbols::ExportedSymbol, rustc_middle::middle::exported_symbols::SymbolExportInfo)]>>, rayon_core::join::join::call<core::option::Option<rustc_data_structures::marker::FromDyn<&[(rustc_middle::middle::exported_symbols::ExportedSymbol, rustc_middle::middle::exported_symbols::SymbolExportInfo)]>>, rustc_data_structures::sync::parallel::enabled::join<rustc_metadata::rmeta::encoder::encode_metadata::{closure#1}::{closure#0}, rustc_metadata::rmeta::encoder::encode_metadata::{closure#1}::{closure#1}, (), &[(rustc_middle::middle::exported_symbols::ExportedSymbol, rustc_middle::middle::exported_symbols::SymbolExportInfo)]>::{closure#0}::{closure#1}>::{closure#0}>::{closure#0} () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#7  0x00007f87bdae32ff in <rayon_core::job::StackJob<rayon_core::latch::SpinLatch, rayon_core::join::join_context::call_b<core::option::Option<rustc_data_structures::marker::FromDyn<&[(rustc_middle::middle::exported_symbols::ExportedSymbol, rustc_middle::middle::exported_symbols::SymbolExportInfo)]>>, rayon_core::join::join::call<core::option::Option<rustc_data_structures::marker::FromDyn<&[(rustc_middle::middle::exported_symbols::ExportedSymbol, rustc_middle::middle::exported_symbols::SymbolExportInfo)]>>, rustc_data_structures::sync::parallel::enabled::join<rustc_metadata::rmeta::encoder::encode_metadata::{closure#1}::{closure#0}, rustc_metadata::rmeta::encoder::encode_metadata::{closure#1}::{closure#1}, (), &[(rustc_middle::middle::exported_symbols::ExportedSymbol, rustc_middle::middle::exported_symbols::SymbolExportInfo)]>::{closure#0}::{closure#1}>::{closure#0}>::{closure#0}, core::option::Option<rustc_data_structures::marker::FromDyn<&[(rustc_middle::middle::exported_symbols::ExportedSymbol, rustc_middle::middle::exported_symbols::SymbolExportInfo)]>>> as rayon_core::job::Job>::execute () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#8  0x00007f87b8338823 in <rayon_core::registry::WorkerThread>::wait_until_cold () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#9  0x00007f87bc2edbaf in rayon_core::join::join_context::<rayon::iter::plumbing::bridge_producer_consumer::helper<rayon::vec::DrainProducer<rustc_middle::mir::mono::MonoItem>, rayon::iter::for_each::ForEachConsumer<rustc_data_structures::sync::parallel::enabled::par_for_each_in<rustc_middle::mir::mono::MonoItem, alloc::vec::Vec<rustc_middle::mir::mono::MonoItem>, rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}>>::{closure#0}, rayon::iter::plumbing::bridge_producer_consumer::helper<rayon::vec::DrainProducer<rustc_middle::mir::mono::MonoItem>, rayon::iter::for_each::ForEachConsumer<rustc_data_structures::sync::parallel::enabled::par_for_each_in<rustc_middle::mir::mono::MonoItem, alloc::vec::Vec<rustc_middle::mir::mono::MonoItem>, rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}>>::{closure#1}, (), ()>::{closure#0} () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#10 0x00007f87bc2ed313 in rayon_core::registry::in_worker::<rayon_core::join::join_context<rayon::iter::plumbing::bridge_producer_consumer::helper<rayon::vec::DrainProducer<rustc_middle::mir::mono::MonoItem>, rayon::iter::for_each::ForEachConsumer<rustc_data_structures::sync::parallel::enabled::par_for_each_in<rustc_middle::mir::mono::MonoItem, alloc::vec::Vec<rustc_middle::mir::mono::MonoItem>, rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}>>::{closure#0}, rayon::iter::plumbing::bridge_producer_consumer::helper<rayon::vec::DrainProducer<rustc_middle::mir::mono::MonoItem>, rayon::iter::for_each::ForEachConsumer<rustc_data_structures::sync::parallel::enabled::par_for_each_in<rustc_middle::mir::mono::MonoItem, alloc::vec::Vec<rustc_middle::mir::mono::MonoItem>, rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}>>::{closure#1}, (), ()>::{closure#0}, ((), ())> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#11 0x00007f87bc2db2a4 in rayon::iter::plumbing::bridge_producer_consumer::helper::<rayon::vec::DrainProducer<rustc_middle::mir::mono::MonoItem>, rayon::iter::for_each::ForEachConsumer<rustc_data_structures::sync::parallel::enabled::par_for_each_in<rustc_middle::mir::mono::MonoItem, alloc::vec::Vec<rustc_middle::mir::mono::MonoItem>, rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}>> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#12 0x00007f87bc2eead2 in <rayon_core::job::StackJob<rayon_core::latch::SpinLatch, rayon_core::join::join_context::call_b<(), rayon::iter::plumbing::bridge_producer_consumer::helper<rayon::vec::DrainProducer<rustc_middle::mir::mono::MonoItem>, rayon::iter::for_each::ForEachConsumer<rustc_data_structures::sync::parallel::enabled::par_for_each_in<rustc_middle::mir::mono::MonoItem, alloc::vec::Vec<rustc_middle::mir::mono::MonoItem>, rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}>>::{closure#1}>::{closure#0}, ()> as rayon_core::job::Job>::execute () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#13 0x00007f87b8338823 in <rayon_core::registry::WorkerThread>::wait_until_cold () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#14 0x00007f87be52d1f9 in <rayon_core::registry::ThreadBuilder>::run () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#15 0x00007f87b8461c57 in <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#3}::{closure#0}::{closure#0}::{closure#0}, ()> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#16 0x00007f87b846e465 in rustc_span::set_session_globals_then::<(), rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#3}::{closure#0}::{closure#0}::{closure#0}> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#17 0x00007f87b844f282 in <<crossbeam_utils::thread::ScopedThreadBuilder>::spawn<<rayon_core::ThreadPoolBuilder>::build_scoped<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#3}::{closure#0}::{closure#0}, rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#3}::{closure#0}::{closure#1}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}::{closure#0}, ()>::{closure#0} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#18 0x00007f87b846af58 in <<std::thread::Builder>::spawn_unchecked_<alloc::boxed::Box<dyn core::ops::function::FnOnce<(), Output = ()> + core::marker::Send>, ()>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#19 0x00007f87b7898e85 in std::sys::unix::thread::Thread::new::thread_start () from /home/andjo403/.rustup/toolchains/stage1/lib/libstd-d570b0650d35d951.so
rust-lang#20 0x00007f87b7615609 in start_thread (arg=<optimized out>) at pthread_create.c:477
rust-lang#21 0x00007f87b7755133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f87b729b700 (LWP 11368)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f87b7887b51 in std::sys::unix::locks::futex_condvar::Condvar::wait () from /home/andjo403/.rustup/toolchains/stage1/lib/libstd-d570b0650d35d951.so
#2  0x00007f87b8339478 in <rayon_core::sleep::Sleep>::sleep () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
#3  0x00007f87b83387c3 in <rayon_core::registry::WorkerThread>::wait_until_cold () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
#4  0x00007f87bc2edbaf in rayon_core::join::join_context::<rayon::iter::plumbing::bridge_producer_consumer::helper<rayon::vec::DrainProducer<rustc_middle::mir::mono::MonoItem>, rayon::iter::for_each::ForEachConsumer<rustc_data_structures::sync::parallel::enabled::par_for_each_in<rustc_middle::mir::mono::MonoItem, alloc::vec::Vec<rustc_middle::mir::mono::MonoItem>, rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}>>::{closure#0}, rayon::iter::plumbing::bridge_producer_consumer::helper<rayon::vec::DrainProducer<rustc_middle::mir::mono::MonoItem>, rayon::iter::for_each::ForEachConsumer<rustc_data_structures::sync::parallel::enabled::par_for_each_in<rustc_middle::mir::mono::MonoItem, alloc::vec::Vec<rustc_middle::mir::mono::MonoItem>, rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}>>::{closure#1}, (), ()>::{closure#0} () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#5  0x00007f87bc2ed313 in rayon_core::registry::in_worker::<rayon_core::join::join_context<rayon::iter::plumbing::bridge_producer_consumer::helper<rayon::vec::DrainProducer<rustc_middle::mir::mono::MonoItem>, rayon::iter::for_each::ForEachConsumer<rustc_data_structures::sync::parallel::enabled::par_for_each_in<rustc_middle::mir::mono::MonoItem, alloc::vec::Vec<rustc_middle::mir::mono::MonoItem>, rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}>>::{closure#0}, rayon::iter::plumbing::bridge_producer_consumer::helper<rayon::vec::DrainProducer<rustc_middle::mir::mono::MonoItem>, rayon::iter::for_each::ForEachConsumer<rustc_data_structures::sync::parallel::enabled::par_for_each_in<rustc_middle::mir::mono::MonoItem, alloc::vec::Vec<rustc_middle::mir::mono::MonoItem>, rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}>>::{closure#1}, (), ()>::{closure#0}, ((), ())> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#6  0x00007f87bc2db50c in <rayon::vec::IntoIter<rustc_middle::mir::mono::MonoItem> as rayon::iter::ParallelIterator>::for_each::<rustc_data_structures::sync::parallel::enabled::par_for_each_in<rustc_middle::mir::mono::MonoItem, alloc::vec::Vec<rustc_middle::mir::mono::MonoItem>, rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#7  0x00007f87bc2e8cd7 in <rustc_session::session::Session>::time::<(), rustc_monomorphize::collector::collect_crate_mono_items::{closure#1}> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#8  0x00007f87bc2b8f2c in rustc_monomorphize::collector::collect_crate_mono_items () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#9  0x00007f87bc2c30d9 in rustc_monomorphize::partitioning::collect_and_partition_mono_items () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#10 0x00007f87bcf2cde6 in rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::collect_and_partition_mono_items::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 24]>> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#11 0x00007f87bd156a3c in <rustc_query_impl::query_impl::collect_and_partition_mono_items::dynamic_query::{closure#2} as core::ops::function::FnOnce<(rustc_middle::ty::context::TyCtxt, ())>>::call_once () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#12 0x00007f87bd1c6a7d in rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 24]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#13 0x00007f87bd15df40 in rustc_query_impl::query_impl::collect_and_partition_mono_items::get_query_non_incr::__rust_end_short_backtrace () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#14 0x00007f87bd7a0ad9 in rustc_codegen_ssa::back::symbol_export::exported_symbols_provider_local () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#15 0x00007f87bcf29acb in rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::exported_symbols::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 16]>> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#16 0x00007f87bcfdb350 in <rustc_query_impl::query_impl::exported_symbols::dynamic_query::{closure#2} as core::ops::function::FnOnce<(rustc_middle::ty::context::TyCtxt, rustc_span::def_id::CrateNum)>>::call_once () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#17 0x00007f87bd27d64f in rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_span::def_id::CrateNum, rustc_middle::query::erase::Erased<[u8; 16]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#18 0x00007f87bd0b5b6a in rustc_query_impl::query_impl::exported_symbols::get_query_non_incr::__rust_end_short_backtrace () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#19 0x00007f87bda927ce in rustc_middle::query::plumbing::query_get_at::<rustc_query_system::query::caches::VecCache<rustc_span::def_id::CrateNum, rustc_middle::query::erase::Erased<[u8; 16]>>> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#20 0x00007f87bda9c93f in <rustc_metadata::rmeta::encoder::EncodeContext>::encode_crate_root () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#21 0x00007f87bdaa6ef7 in rustc_metadata::rmeta::encoder::encode_metadata_impl () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#22 0x00007f87bdae0b77 in rayon_core::join::join_context::<rayon_core::join::join::call<core::option::Option<rustc_data_structures::marker::FromDyn<()>>, rustc_data_structures::sync::parallel::enabled::join<rustc_metadata::rmeta::encoder::encode_metadata::{closure#0}, rustc_metadata::rmeta::encoder::encode_metadata::{closure#1}, (), ()>::{closure#0}::{closure#0}>::{closure#0}, rayon_core::join::join::call<core::option::Option<rustc_data_structures::marker::FromDyn<()>>, rustc_data_structures::sync::parallel::enabled::join<rustc_metadata::rmeta::encoder::encode_metadata::{closure#0}, rustc_metadata::rmeta::encoder::encode_metadata::{closure#1}, (), ()>::{closure#0}::{closure#1}>::{closure#0}, core::option::Option<rustc_data_structures::marker::FromDyn<()>>, core::option::Option<rustc_data_structures::marker::FromDyn<()>>>::{closure#0} () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#23 0x00007f87bdaded2f in rayon_core::registry::in_worker::<rayon_core::join::join_context<rayon_core::join::join::call<core::option::Option<rustc_data_structures::marker::FromDyn<()>>, rustc_data_structures::sync::parallel::enabled::join<rustc_metadata::rmeta::encoder::encode_metadata::{closure#0}, rustc_metadata::rmeta::encoder::encode_metadata::{closure#1}, (), ()>::{closure#0}::{closure#0}>::{closure#0}, rayon_core::join::join::call<core::option::Option<rustc_data_structures::marker::FromDyn<()>>, rustc_data_structures::sync::parallel::enabled::join<rustc_metadata::rmeta::encoder::encode_metadata::{closure#0}, rustc_metadata::rmeta::encoder::encode_metadata::{closure#1}, (), ()>::{closure#0}::{closure#1}>::{closure#0}, core::option::Option<rustc_data_structures::marker::FromDyn<()>>, core::option::Option<rustc_data_structures::marker::FromDyn<()>>>::{closure#0}, (core::option::Option<rustc_data_structures::marker::FromDyn<()>>, core::option::Option<rustc_data_structures::marker::FromDyn<()>>)> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#24 0x00007f87bdaa5a03 in rustc_metadata::rmeta::encoder::encode_metadata () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#25 0x00007f87bdaed628 in rustc_metadata::fs::encode_and_write_metadata () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#26 0x00007f87b86608be in rustc_interface::passes::start_codegen () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#27 0x00007f87b8664946 in <rustc_middle::ty::context::GlobalCtxt>::enter::<<rustc_interface::queries::Queries>::codegen_and_build_linker::{closure#0}, core::result::Result<rustc_interface::queries::Linker, rustc_span::ErrorGuaranteed>> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#28 0x00007f87b864db00 in <rustc_interface::queries::Queries>::codegen_and_build_linker () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#29 0x00007f87b849400f in <rustc_interface::interface::Compiler>::enter::<rustc_driver_impl::run_compiler::{closure#0}::{closure#0}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_span::ErrorGuaranteed>> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#30 0x00007f87b846e067 in rustc_span::set_source_map::<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}::{closure#0}> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#31 0x00007f87b844dc13 in <rayon_core::thread_pool::ThreadPool>::install::<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0} () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#32 0x00007f87b84509a1 in <rayon_core::job::StackJob<rayon_core::latch::LatchRef<rayon_core::latch::LockLatch>, <rayon_core::registry::Registry>::in_worker_cold<<rayon_core::thread_pool::ThreadPool>::install<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>> as rayon_core::job::Job>::execute () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#33 0x00007f87b8338823 in <rayon_core::registry::WorkerThread>::wait_until_cold () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#34 0x00007f87be52d1f9 in <rayon_core::registry::ThreadBuilder>::run () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#35 0x00007f87b8461c57 in <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#3}::{closure#0}::{closure#0}::{closure#0}, ()> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#36 0x00007f87b846e465 in rustc_span::set_session_globals_then::<(), rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#3}::{closure#0}::{closure#0}::{closure#0}> () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#37 0x00007f87b844f282 in <<crossbeam_utils::thread::ScopedThreadBuilder>::spawn<<rayon_core::ThreadPoolBuilder>::build_scoped<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#3}::{closure#0}::{closure#0}, rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#3}::{closure#0}::{closure#1}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}::{closure#0}, ()>::{closure#0} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#38 0x00007f87b846af58 in <<std::thread::Builder>::spawn_unchecked_<alloc::boxed::Box<dyn core::ops::function::FnOnce<(), Output = ()> + core::marker::Send>, ()>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} () from /home/andjo403/.rustup/toolchains/stage1/lib/librustc_driver-70ddb84e8f7ce707.so
rust-lang#39 0x00007f87b7898e85 in std::sys::unix::thread::Thread::new::thread_start () from /home/andjo403/.rustup/toolchains/stage1/lib/libstd-d570b0650d35d951.so
rust-lang#40 0x00007f87b7615609 in start_thread (arg=<optimized out>) at pthread_create.c:477
rust-lang#41 0x00007f87b7755133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

```

fixes rust-lang#118205
fixes rust-lang#117759 from the latest logs it is the same query map as in rust-lang#118205
fixes rust-lang#118529
fixes rust-lang#117784
cc rust-lang#118206

r? `@SparrowLii`
petrochenkov pushed a commit that referenced this pull request Jun 7, 2024
…-codegen-tests, r=erikdesjardins,workingjubilee

Repair several `riscv64gc-unknown-linux-gnu` codegen tests

Together with [email protected], we've been starting to explore improving the state of the `riscv64gc-unknown-linux-gnu` target. Additionally, I'm looking to add support for this platform in [Ferrocene](https://github.com/ferrocene/ferrocene) ([Related PR](ferrocene/ferrocene#618)).

While running the test suite, we noted several tests were failing.

It appears that several of the riscv64gc-unknown-linux-gnu codegen tests have not been updated in some time and seem to have experienced a small amount of bitrot.

After speaking with `@workingjubilee` (as I have little expertise in LLVM codegen) I believe these changes to be correct.

### `tests/codegen/riscv-abi/call-llvm-intrinsics.rs`

I believe this change does not alter what the test is testing and is harmless.

### `tests/codegen/riscv-abi/riscv64-lp64d-abi.rs`

The changes largely mirrors those from loongarch64:

https://github.com/rust-lang/rust/blob/550d1b4fb6de23990f4108815c3b1a9d1659e5c4/tests/codegen/loongarch-abi/loongarch64-lp64d-abi.rs#L13-L15

https://github.com/rust-lang/rust/blob/550d1b4fb6de23990f4108815c3b1a9d1659e5c4/tests/codegen/loongarch-abi/loongarch64-lp64d-abi.rs#L153-L155

https://github.com/rust-lang/rust/blob/550d1b4fb6de23990f4108815c3b1a9d1659e5c4/tests/codegen/loongarch-abi/loongarch64-lp64d-abi.rs#L259-L261

https://github.com/rust-lang/rust/blob/550d1b4fb6de23990f4108815c3b1a9d1659e5c4/tests/codegen/loongarch-abi/loongarch64-lp64d-abi.rs#L263-L267

### `tests/codegen/riscv-abi/riscv64-lp64f-lp64d-abi.rs`

The changes largely mirror that from loongarch64 or llvm:

https://github.com/rust-lang/rust/blob/550d1b4fb6de23990f4108815c3b1a9d1659e5c4/tests/codegen/loongarch-abi/loongarch64-lp64d-abi.rs#L13-L26

https://github.com/rust-lang/llvm-project/blob/5399a24c66cb6164cf32280e7d300488c90d5765/clang/test/CodeGen/RISCV/riscv64-abi.c#L612-L617

### `tests/ui/debuginfo/debuginfo-emit-llvm-ir-and-split-debuginfo.rs`

The test is ignored since `-Csplit-debuginfo=unpacked` is not supported on this platform. Context can be found in rust-lang#120518.

## Reproducing the failures

Using a `config.toml` with the following:

```toml
# ...

target = [
   # ...
   "riscv64gc-unknown-linux-gnu",
]
```

> [!NOTE]
> You may need to install a RICV-V toolchain! We get ours from [here](https://www.embecosm.com/resources/tool-chain-downloads/#riscv-linux).
>
> If you are using an old (20.04) Ubuntu container the compiler in the repositories (`gcc-riscv64-linux-gnu`) won't work!

Run the following test suite:

```bash
./x.py test tests/codegen
```

<details>

<summary>Expected output</summary>

```
ana@Autonoma:~/git/rust-lang/rust$ ./x.py test tests/codegen
Building bootstrap
    Finished `dev` profile [unoptimized] target(s) in 0.03s
WARNING: The `change-id` is missing in the `config.toml`. This means that you will not be able to track the major changes made to the bootstrap configurations.
NOTE: to silence this warning, add `change-id = 124501` at the top of `config.toml`
Building stage0 library artifacts (x86_64-unknown-linux-gnu)
    Finished `release` profile [optimized] target(s) in 0.11s
Building compiler artifacts (stage0 -> stage1, x86_64-unknown-linux-gnu)
    Finished `release` profile [optimized] target(s) in 0.18s
Creating a sysroot for stage1 compiler (use `rustup toolchain link 'name' build/host/stage1`)
Building stage1 library artifacts (x86_64-unknown-linux-gnu)
    Finished `release` profile [optimized] target(s) in 0.11s
Building stage0 tool compiletest (x86_64-unknown-linux-gnu)
    Finished `release` profile [optimized] target(s) in 0.11s
Testing stage1 compiletest suite=codegen mode=codegen (x86_64-unknown-linux-gnu)

running 652 tests
iii......ii...iiiiiii...........ii..iii....i......i......i......iii...iiiii..i..i...i...  88/652
.............i............iii..iiii.....................i............................... 176/652
iiiiiii.............iiiiiiiii.iii....i.................i....................i...ii....i. 264/652
..i........i.........i..i........iii.........i............ii................ii..i....... 352/652
...............i...i....ii.i.....i......................ii.ii...iiiiiiiiiiiiiiiiiiiiiiii 440/652
iii....................iiiiiiiiiiiiiiii.........................iii.i..........i........ 528/652
...i...ii...........i...ii.i..i..........i..............................ii.....ii.i..ii. 616/652
.ii.................................

test result: ok. 498 passed; 0 failed; 154 ignored; 0 measured; 0 filtered out; finished in 4.76s

Building stage1 library artifacts (x86_64-unknown-linux-gnu -> riscv64gc-unknown-linux-gnu)
    Finished `release` profile [optimized] target(s) in 0.10s
Testing stage1 compiletest suite=codegen mode=codegen (x86_64-unknown-linux-gnu -> riscv64gc-unknown-linux-gnu)

running 652 tests
iii......ii..iiiiiii.....i..i..i.i...i........i..i.......i......iii...iiiii..i.i....i...  88/652
.............i............iii..iiii....................i...............................i 176/652
iiiiii..............iiiiiiiii.iii.....i................i..................i.....ii....i. 264/652
..i........i..........i.i........iii..........i...........ii................ii..i....... 352/652
...............i...i....ii.i.....i......................i.......iii.iiiiiiiiiiiiiiiiiiii 440/652
iiii...................iiiiiiiiiiiiiiii................
[codegen] tests/codegen/riscv-abi/call-llvm-intrinsics.rs ... F
.....
[codegen] tests/codegen/riscv-abi/riscv64-lp64f-lp64d-abi.rs ... F
..iii.i.
[codegen] tests/codegen/riscv-abi/riscv64-lp64d-abi.rs ... F
........i........ 528/652
...i...ii...........i...ii..i.i..........i..............................ii.....ii.i..ii. 616/652
.ii.................................

failures:

---- [codegen] tests/codegen/riscv-abi/call-llvm-intrinsics.rs stdout ----

error: verification with 'FileCheck' failed
status: exit status: 1
command: "/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/llvm/build/bin/FileCheck" "--input-file" "/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/call-llvm-intrinsics/call-llvm-intrinsics.ll" "/home/ana/git/rust-lang/rust/tests/codegen/riscv-abi/call-llvm-intrinsics.rs" "--check-prefix=CHECK" "--check-prefix" "NONMSVC" "--allow-unused-prefixes" "--dump-input-context" "100"
stdout: none
--- stderr -------------------------------
/home/ana/git/rust-lang/rust/tests/codegen/riscv-abi/call-llvm-intrinsics.rs:26:12: error: CHECK: expected string not found in input
 // CHECK: store float 4.000000e+00, float* %{{.}}, align 4
           ^
/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/call-llvm-intrinsics/call-llvm-intrinsics.ll:1:1: note: scanning from here
; ModuleID = 'call_llvm_intrinsics.b4a95fd5831b1bb7-cgu.0'
^
/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/call-llvm-intrinsics/call-llvm-intrinsics.ll:53:2: note: possible intended match here
 store float 4.000000e+00, ptr %3, align 4
 ^

Input file: /home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/call-llvm-intrinsics/call-llvm-intrinsics.ll
Check file: /home/ana/git/rust-lang/rust/tests/codegen/riscv-abi/call-llvm-intrinsics.rs

-dump-input=help explains the following input dump.

Input was:
<<<<<<
            1: ; ModuleID = 'call_llvm_intrinsics.b4a95fd5831b1bb7-cgu.0'
check:26'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
            2: source_filename = "call_llvm_intrinsics.b4a95fd5831b1bb7-cgu.0"
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            3: target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            4: target triple = "riscv64-unknown-linux-gnu"
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            5:
check:26'0     ~
            6: `@alloc_cebd5a1664be1c73eee4a1aab7937c96` = private unnamed_addr constant <{ [2 x i8] }> <{ [2 x i8] c"A\0A" }>, align 1
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            7: `@alloc_bddb4fe6d67b5a5a93d73a63d68b4b9e` = private unnamed_addr constant <{ ptr, [8 x i8] }> <{ ptr `@alloc_cebd5a1664be1c73eee4a1aab7937c96,` [8 x i8] c"\02\00\00\00\00\00\00\00" }>, align 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            8: `@0` = private unnamed_addr constant <{ [8 x i8], [8 x i8] }> <{ [8 x i8] zeroinitializer, [8 x i8] undef }>, align 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            9:
check:26'0     ~
           10: ; core::ptr::drop_in_place<call_llvm_intrinsics::A>
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           11: ; Function Attrs: uwtable
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
           12: define internal void `@"_ZN4core3ptr44drop_in_place$LT$call_llvm_intrinsics..A$GT$17hf11b50bd9b9c5359E"(ptr` noalias noundef nonnull align 1 %_1) unnamed_addr #0 {
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           13: start:
check:26'0     ~~~~~~~
           14: ; call <call_llvm_intrinsics::A as core::ops::drop::Drop>::drop
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           15:  call void `@"_ZN65_$LT$call_llvm_intrinsics..A$u20$as$u20$core..ops..drop..Drop$GT$4drop17hc84a7f61b5f719bdE"(ptr` noalias noundef nonnull align 1 %_1)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           16:  ret void
check:26'0     ~~~~~~~~~~
           17: }
check:26'0     ~~
           18:
check:26'0     ~
           19: ; <call_llvm_intrinsics::A as core::ops::drop::Drop>::drop
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           20: ; Function Attrs: uwtable
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
           21: define void `@"_ZN65_$LT$call_llvm_intrinsics..A$u20$as$u20$core..ops..drop..Drop$GT$4drop17hc84a7f61b5f719bdE"(ptr` noalias noundef nonnull align 1 %self) unnamed_addr #0 {
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           22: start:
check:26'0     ~~~~~~~
           23:  %_3 = alloca [48 x i8], align 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           24:  call void `@llvm.lifetime.start.p0(i64` 48, ptr %_3)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           25:  store ptr `@alloc_bddb4fe6d67b5a5a93d73a63d68b4b9e,` ptr %_3, align 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           26:  %0 = getelementptr inbounds i8, ptr %_3, i64 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           27:  store i64 1, ptr %0, align 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           28:  %1 = load ptr, ptr `@0,` align 8, !align !4, !noundef !5
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           29:  %2 = load i64, ptr getelementptr inbounds (i8, ptr `@0,` i64 8), align 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           30:  %3 = getelementptr inbounds i8, ptr %_3, i64 32
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           31:  store ptr %1, ptr %3, align 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           32:  %4 = getelementptr inbounds i8, ptr %3, i64 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           33:  store i64 %2, ptr %4, align 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           34:  %5 = getelementptr inbounds i8, ptr %_3, i64 16
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           35:  store ptr inttoptr (i64 8 to ptr), ptr %5, align 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           36:  %6 = getelementptr inbounds i8, ptr %5, i64 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           37:  store i64 0, ptr %6, align 8
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           38: ; call std::io::stdio::_print
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           39:  call void `@_ZN3std2io5stdio6_print17h38b16d890daf9d05E(ptr` noalias nocapture noundef align 8 dereferenceable(48) %_3)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           40:  call void `@llvm.lifetime.end.p0(i64` 48, ptr %_3)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           41:  ret void
check:26'0     ~~~~~~~~~~
           42: }
check:26'0     ~~
           43:
check:26'0     ~
           44: ; call_llvm_intrinsics::do_call
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           45: ; Function Attrs: uwtable
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
           46: define void `@_ZN20call_llvm_intrinsics7do_call17h1d78694c55381316E()` unnamed_addr #0 {
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           47: start:
check:26'0     ~~~~~~~
           48:  %0 = alloca [4 x i8], align 4
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           49:  %1 = alloca [4 x i8], align 4
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           50:  %2 = alloca [4 x i8], align 4
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           51:  %3 = alloca [4 x i8], align 4
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           52:  %_1 = alloca [0 x i8], align 1
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           53:  store float 4.000000e+00, ptr %3, align 4
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
check:26'1      ?                                          possible intended match
           54:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %2)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           55:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %2, ptr align 4 %3, i64 4, i1 false)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           56:  %4 = load float, ptr %2, align 4
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           57:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %2)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           58:  %5 = call float `@llvm.sqrt.f32(float` %4) #4
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           59:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %1)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           60:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %0)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           61:  store float %5, ptr %0, align 4
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           62:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %1, ptr align 4 %0, i64 4, i1 false)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           63:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %0)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           64:  %_2 = load float, ptr %1, align 4, !noundef !5
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           65:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %1)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           66: ; call core::ptr::drop_in_place<call_llvm_intrinsics::A>
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           67:  call void `@"_ZN4core3ptr44drop_in_place$LT$call_llvm_intrinsics..A$GT$17hf11b50bd9b9c5359E"(ptr` noalias noundef nonnull align 1 %_1)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           68:  ret void
check:26'0     ~~~~~~~~~~
           69: }
check:26'0     ~~
           70:
check:26'0     ~
           71: ; std::io::stdio::_print
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~
           72: ; Function Attrs: uwtable
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
           73: declare void `@_ZN3std2io5stdio6_print17h38b16d890daf9d05E(ptr` noalias nocapture noundef align 8 dereferenceable(48)) unnamed_addr #0
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           74:
check:26'0     ~
           75: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           76: declare void `@llvm.memcpy.p0.p0.i64(ptr` noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           77:
check:26'0     ~
           78: ; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           79: declare float `@llvm.sqrt.f32(float)` unnamed_addr #2
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           80:
check:26'0     ~
           81: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           82: declare void `@llvm.lifetime.start.p0(i64` immarg, ptr nocapture) #3
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           83:
check:26'0     ~
           84: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           85: declare void `@llvm.lifetime.end.p0(i64` immarg, ptr nocapture) #3
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           86:
check:26'0     ~
           87: attributes #0 = { uwtable "target-cpu"="generic-rv64" "target-features"="+m,+a,+f,+d,+c" }
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           88: attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           89: attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           90: attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           91: attributes #4 = { nounwind }
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           92:
check:26'0     ~
           93: !llvm.module.flags = !{!0, !1, !2}
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           94: !llvm.ident = !{!3}
check:26'0     ~~~~~~~~~~~~~~~~~~~~
           95:
check:26'0     ~
           96: !0 = !{i32 8, !"PIC Level", i32 2}
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           97: !1 = !{i32 1, !"Code Model", i32 3}
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           98: !2 = !{i32 1, !"target-abi", !"lp64d"}
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           99: !3 = !{!"rustc version 1.80.0-dev"}
check:26'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          100: !4 = !{i64 8}
check:26'0     ~~~~~~~~~~~~~~
          101: !5 = !{}
check:26'0     ~~~~~~~~~
>>>>>>
------------------------------------------

---- [codegen] tests/codegen/riscv-abi/riscv64-lp64f-lp64d-abi.rs stdout ----

error: verification with 'FileCheck' failed
status: exit status: 1
command: "/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/llvm/build/bin/FileCheck" "--input-file" "/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/riscv64-lp64f-lp64d-abi/riscv64-lp64f-lp64d-abi.ll" "/home/ana/git/rust-lang/rust/tests/codegen/riscv-abi/riscv64-lp64f-lp64d-abi.rs" "--check-prefix=CHECK" "--check-prefix" "NONMSVC" "--allow-unused-prefixes" "--dump-input-context" "100"
stdout: none
--- stderr -------------------------------
/home/ana/git/rust-lang/rust/tests/codegen/riscv-abi/riscv64-lp64f-lp64d-abi.rs:7:11: error: CHECK: expected string not found in input
// CHECK: define void `@f_fpr_tracking(float` %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, i8 zeroext %i)
          ^
/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/riscv64-lp64f-lp64d-abi/riscv64-lp64f-lp64d-abi.ll:1:1: note: scanning from here
; ModuleID = 'riscv64_lp64f_lp64d_abi.ae8fa95bac1a0604-cgu.0'
^
/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/riscv64-lp64f-lp64d-abi/riscv64-lp64f-lp64d-abi.ll:9:1: note: possible intended match here
define void `@f_fpr_tracking(float` %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, i8 noundef zeroext %i) unnamed_addr #0 {
^

Input file: /home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/riscv64-lp64f-lp64d-abi/riscv64-lp64f-lp64d-abi.ll
Check file: /home/ana/git/rust-lang/rust/tests/codegen/riscv-abi/riscv64-lp64f-lp64d-abi.rs

-dump-input=help explains the following input dump.

Input was:
<<<<<<
           1: ; ModuleID = 'riscv64_lp64f_lp64d_abi.ae8fa95bac1a0604-cgu.0'
check:7'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
           2: source_filename = "riscv64_lp64f_lp64d_abi.ae8fa95bac1a0604-cgu.0"
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           3: target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           4: target triple = "riscv64-unknown-linux-gnu"
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           5:
check:7'0     ~
           6: %Tricky1 = type { [1 x float] }
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           7:
check:7'0     ~
           8: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
           9: define void `@f_fpr_tracking(float` %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, i8 noundef zeroext %i) unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
check:7'1     ?                                                                                                                                                     possible intended match
          10: start:
check:7'0     ~~~~~~~
          11:  %8 = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          12:  %h = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          13:  %9 = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          14:  %g = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          15:  %10 = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          16:  %f = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          17:  %11 = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          18:  %e = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          19:  %12 = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          20:  %d = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          21:  %13 = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          22:  %c = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          23:  %14 = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          24:  %b = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          25:  %15 = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          26:  %a = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          27:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %15)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          28:  store float %0, ptr %15, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          29:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %a, ptr align 4 %15, i64 4, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          30:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %15)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          31:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %14)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          32:  store float %1, ptr %14, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          33:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %b, ptr align 4 %14, i64 4, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          34:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %14)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          35:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %13)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          36:  store float %2, ptr %13, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          37:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %c, ptr align 4 %13, i64 4, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          38:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %13)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          39:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %12)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          40:  store float %3, ptr %12, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          41:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %d, ptr align 4 %12, i64 4, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          42:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %12)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          43:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %11)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          44:  store float %4, ptr %11, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          45:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %e, ptr align 4 %11, i64 4, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          46:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %11)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          47:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %10)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          48:  store float %5, ptr %10, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          49:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %f, ptr align 4 %10, i64 4, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          50:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %10)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          51:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %9)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          52:  store float %6, ptr %9, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          53:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %g, ptr align 4 %9, i64 4, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          54:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %9)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          55:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %8)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          56:  store float %7, ptr %8, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          57:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %h, ptr align 4 %8, i64 4, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          58:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %8)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          59:  ret void
check:7'0     ~~~~~~~~~~
          60: }
check:7'0     ~~
          61:
check:7'0     ~
          62: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
          63: define void `@f_float_s_arg(float` %0) unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          64: start:
check:7'0     ~~~~~~~
          65:  %1 = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          66:  %a = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          67:  call void `@llvm.lifetime.start.p0(i64` 4, ptr %1)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          68:  store float %0, ptr %1, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          69:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %a, ptr align 4 %1, i64 4, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          70:  call void `@llvm.lifetime.end.p0(i64` 4, ptr %1)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          71:  ret void
check:7'0     ~~~~~~~~~~
          72: }
check:7'0     ~~
          73:
check:7'0     ~
          74: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
          75: define float `@f_ret_float_s()` unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          76: start:
check:7'0     ~~~~~~~
          77:  %_0 = alloca [4 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          78:  store float 1.000000e+00, ptr %_0, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          79:  %0 = load float, ptr %_0, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          80:  ret float %0
check:7'0     ~~~~~~~~~~~~~~
          81: }
check:7'0     ~~
          82:
check:7'0     ~
          83: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
          84: define void `@f_float_float_s_arg({` float, float } %0) unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          85: start:
check:7'0     ~~~~~~~
          86:  %1 = alloca [8 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          87:  %a = alloca [8 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          88:  call void `@llvm.lifetime.start.p0(i64` 8, ptr %1)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          89:  store { float, float } %0, ptr %1, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          90:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 4 %a, ptr align 4 %1, i64 8, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          91:  call void `@llvm.lifetime.end.p0(i64` 8, ptr %1)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          92:  ret void
check:7'0     ~~~~~~~~~~
          93: }
check:7'0     ~~
          94:
check:7'0     ~
          95: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
          96: define { float, float } `@f_ret_float_float_s()` unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          97: start:
check:7'0     ~~~~~~~
          98:  %0 = alloca [8 x i8], align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          99:  store float 1.000000e+00, ptr %0, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         100:  %1 = getelementptr inbounds i8, ptr %0, i64 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         101:  store float 2.000000e+00, ptr %1, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         102:  %2 = load { float, float }, ptr %0, align 4
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         103:  ret { float, float } %2
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~
         104: }
check:7'0     ~~
         105:
check:7'0     ~
         106: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
         107: define void `@f_float_float_s_arg_insufficient_fprs(float` %0, float %1, float %2, float %3, float %4, float %5, float %6, i64 %7) unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         108: start:
check:7'0     ~~~~~~~
         109:  %8 = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           .
           .
           .
>>>>>>
------------------------------------------

---- [codegen] tests/codegen/riscv-abi/riscv64-lp64d-abi.rs stdout ----

error: verification with 'FileCheck' failed
status: exit status: 1
command: "/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/llvm/build/bin/FileCheck" "--input-file" "/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/riscv64-lp64d-abi/riscv64-lp64d-abi.ll" "/home/ana/git/rust-lang/rust/tests/codegen/riscv-abi/riscv64-lp64d-abi.rs" "--check-prefix=CHECK" "--check-prefix" "NONMSVC" "--allow-unused-prefixes" "--dump-input-context" "100"
stdout: none
--- stderr -------------------------------
/home/ana/git/rust-lang/rust/tests/codegen/riscv-abi/riscv64-lp64d-abi.rs:7:11: error: CHECK: expected string not found in input
// CHECK: define void `@f_fpr_tracking(double` %0, double %1, double %2, double %3, double %4, double %5, double %6, double %7, i8 zeroext %i)
          ^
/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/riscv64-lp64d-abi/riscv64-lp64d-abi.ll:1:1: note: scanning from here
; ModuleID = 'riscv64_lp64d_abi.bed282cd9c73cc17-cgu.0'
^
/home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/riscv64-lp64d-abi/riscv64-lp64d-abi.ll:9:1: note: possible intended match here
define void `@f_fpr_tracking(double` %0, double %1, double %2, double %3, double %4, double %5, double %6, double %7, i8 noundef zeroext %i) unnamed_addr #0 {
^

Input file: /home/ana/git/rust-lang/rust/build/x86_64-unknown-linux-gnu/test/codegen/riscv-abi/riscv64-lp64d-abi/riscv64-lp64d-abi.ll
Check file: /home/ana/git/rust-lang/rust/tests/codegen/riscv-abi/riscv64-lp64d-abi.rs

-dump-input=help explains the following input dump.

Input was:
<<<<<<
           1: ; ModuleID = 'riscv64_lp64d_abi.bed282cd9c73cc17-cgu.0'
check:7'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
           2: source_filename = "riscv64_lp64d_abi.bed282cd9c73cc17-cgu.0"
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           3: target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           4: target triple = "riscv64-unknown-linux-gnu"
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           5:
check:7'0     ~
           6: %Tricky1 = type { [1 x double] }
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           7:
check:7'0     ~
           8: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
           9: define void `@f_fpr_tracking(double` %0, double %1, double %2, double %3, double %4, double %5, double %6, double %7, i8 noundef zeroext %i) unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
check:7'1     ?                                                                                                                                                             possible intended match
          10: start:
check:7'0     ~~~~~~~
          11:  %8 = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          12:  %h = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          13:  %9 = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          14:  %g = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          15:  %10 = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          16:  %f = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          17:  %11 = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          18:  %e = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          19:  %12 = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          20:  %d = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          21:  %13 = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          22:  %c = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          23:  %14 = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          24:  %b = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          25:  %15 = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          26:  %a = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          27:  call void `@llvm.lifetime.start.p0(i64` 8, ptr %15)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          28:  store double %0, ptr %15, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          29:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 8 %a, ptr align 8 %15, i64 8, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          30:  call void `@llvm.lifetime.end.p0(i64` 8, ptr %15)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          31:  call void `@llvm.lifetime.start.p0(i64` 8, ptr %14)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          32:  store double %1, ptr %14, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          33:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 8 %b, ptr align 8 %14, i64 8, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          34:  call void `@llvm.lifetime.end.p0(i64` 8, ptr %14)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          35:  call void `@llvm.lifetime.start.p0(i64` 8, ptr %13)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          36:  store double %2, ptr %13, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          37:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 8 %c, ptr align 8 %13, i64 8, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          38:  call void `@llvm.lifetime.end.p0(i64` 8, ptr %13)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          39:  call void `@llvm.lifetime.start.p0(i64` 8, ptr %12)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          40:  store double %3, ptr %12, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          41:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 8 %d, ptr align 8 %12, i64 8, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          42:  call void `@llvm.lifetime.end.p0(i64` 8, ptr %12)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          43:  call void `@llvm.lifetime.start.p0(i64` 8, ptr %11)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          44:  store double %4, ptr %11, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          45:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 8 %e, ptr align 8 %11, i64 8, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          46:  call void `@llvm.lifetime.end.p0(i64` 8, ptr %11)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          47:  call void `@llvm.lifetime.start.p0(i64` 8, ptr %10)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          48:  store double %5, ptr %10, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          49:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 8 %f, ptr align 8 %10, i64 8, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          50:  call void `@llvm.lifetime.end.p0(i64` 8, ptr %10)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          51:  call void `@llvm.lifetime.start.p0(i64` 8, ptr %9)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          52:  store double %6, ptr %9, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          53:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 8 %g, ptr align 8 %9, i64 8, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          54:  call void `@llvm.lifetime.end.p0(i64` 8, ptr %9)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          55:  call void `@llvm.lifetime.start.p0(i64` 8, ptr %8)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          56:  store double %7, ptr %8, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          57:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 8 %h, ptr align 8 %8, i64 8, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          58:  call void `@llvm.lifetime.end.p0(i64` 8, ptr %8)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          59:  ret void
check:7'0     ~~~~~~~~~~
          60: }
check:7'0     ~~
          61:
check:7'0     ~
          62: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
          63: define void `@f_double_s_arg(double` %0) unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          64: start:
check:7'0     ~~~~~~~
          65:  %1 = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          66:  %a = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          67:  call void `@llvm.lifetime.start.p0(i64` 8, ptr %1)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          68:  store double %0, ptr %1, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          69:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 8 %a, ptr align 8 %1, i64 8, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          70:  call void `@llvm.lifetime.end.p0(i64` 8, ptr %1)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          71:  ret void
check:7'0     ~~~~~~~~~~
          72: }
check:7'0     ~~
          73:
check:7'0     ~
          74: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
          75: define double `@f_ret_double_s()` unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          76: start:
check:7'0     ~~~~~~~
          77:  %_0 = alloca [8 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          78:  store double 1.000000e+00, ptr %_0, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          79:  %0 = load double, ptr %_0, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          80:  ret double %0
check:7'0     ~~~~~~~~~~~~~~~
          81: }
check:7'0     ~~
          82:
check:7'0     ~
          83: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
          84: define void `@f_double_double_s_arg({` double, double } %0) unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          85: start:
check:7'0     ~~~~~~~
          86:  %1 = alloca [16 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          87:  %a = alloca [16 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          88:  call void `@llvm.lifetime.start.p0(i64` 16, ptr %1)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          89:  store { double, double } %0, ptr %1, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          90:  call void `@llvm.memcpy.p0.p0.i64(ptr` align 8 %a, ptr align 8 %1, i64 16, i1 false)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          91:  call void `@llvm.lifetime.end.p0(i64` 16, ptr %1)
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          92:  ret void
check:7'0     ~~~~~~~~~~
          93: }
check:7'0     ~~
          94:
check:7'0     ~
          95: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
          96: define { double, double } `@f_ret_double_double_s()` unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          97: start:
check:7'0     ~~~~~~~
          98:  %0 = alloca [16 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          99:  store double 1.000000e+00, ptr %0, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         100:  %1 = getelementptr inbounds i8, ptr %0, i64 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         101:  store double 2.000000e+00, ptr %1, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         102:  %2 = load { double, double }, ptr %0, align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         103:  ret { double, double } %2
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~
         104: }
check:7'0     ~~
         105:
check:7'0     ~
         106: ; Function Attrs: uwtable
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~
         107: define void `@f_double_float_s_arg({` double, float } %0) unnamed_addr #0 {
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         108: start:
check:7'0     ~~~~~~~
         109:  %1 = alloca [12 x i8], align 8
check:7'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           .
           .
           .
>>>>>>
------------------------------------------

failures:
    [codegen] tests/codegen/riscv-abi/call-llvm-intrinsics.rs
    [codegen] tests/codegen/riscv-abi/riscv64-lp64f-lp64d-abi.rs
    [codegen] tests/codegen/riscv-abi/riscv64-lp64d-abi.rs

test result: FAILED. 498 passed; 3 failed; 151 ignored; 0 measured; 0 filtered out; finished in 4.70s

Some tests failed in compiletest suite=codegen mode=codegen host=x86_64-unknown-linux-gnu target=riscv64gc-unknown-linux-gnu
Build completed unsuccessfully in 0:00:15
```

</details>
petrochenkov pushed a commit that referenced this pull request Jun 13, 2024
Simplify provider api to improve llvm ir

This PR seeks to resolve the last concern in rust-lang#99301 (comment)

We resolve the issue by moving the type_id to be stored in the `Request` itself rather than being accessed through the `Erased` trait, letting the compiler infer that the value of the type id will not change between lookups.

### LLVM Codegen

**Before**

```
; <provider_test::MyError as core::error::Error>::provide
; Function Attrs: nonlazybind uwtable
define void `@"_ZN61_$LT$provider_test..MyError$u20$as$u20$core..error..Error$GT$7provide17hd9c9de412063aa73E"(ptr` noalias nocapture noundef nonnull readonly align 1 %self, ptr noundef nonnull align 1 %request.0, ptr noalias nocapture noundef readonly align 8 dereferenceable(32) %request.1) unnamed_addr #0 personality ptr `@rust_eh_personality` {
start:
  %0 = getelementptr inbounds i8, ptr %request.1, i64 24
  %self.1.val.i = load ptr, ptr %0, align 8
  %1 = tail call { i64, i64 } %self.1.val.i(ptr noundef nonnull align 1 %request.0), !noalias !15
  %2 = extractvalue { i64, i64 } %1, 0
  %3 = extractvalue { i64, i64 } %1, 1
  %_18.i.i = icmp ne i64 %2, 1101338453689927725
  %_2.i.i = icmp ne i64 %3, 472224167662714873
  %or.cond.i.not.i = select i1 %_18.i.i, i1 true, i1 %_2.i.i
  br i1 %or.cond.i.not.i, label %_ZN4core5error7Request7provide17h8f8125d2543333e0E.exit, label %bb2.i
```

**After**

```
; <provider_test::MyError as provider_test::Error>::provide
; Function Attrs: mustprogress nofree norecurse nosync nounwind nonlazybind willreturn memory(argmem: readwrite) uwtable
define void `@"_ZN63_$LT$provider_test..MyError$u20$as$u20$provider_test..Error$GT$7provide17h5bbf091795a6d359E"(ptr` noalias nocapture noundef nonnull readonly align 1 %self, ptr nocapture noundef nonnull align 8 %request.0, ptr noalias nocapture noundef readonly align 8 dereferenceable(24) %request.1) unnamed_addr #2 personality ptr `@rust_eh_personality` {
start:
  %_19.i = load i64, ptr %request.0, align 8, !noalias !3, !noundef !3
  switch i64 %_19.i, label %_ZN13provider_test7Request7provide17heb3ee140962e3b2fE.exit [
    i64 7665305208997882008, label %bb12.i
    i64 7050211241160863540, label %bb12.i3
    i64 9112786072622981063, label %bb12.i11
  ]
```
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