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Auto merge of rust-lang#109895 - nikic:llvm-16-tests, r=cuviper
Add codegen tests for issues fixed by LLVM 16 Fixes rust-lang#75978. Fixes rust-lang#99960. Fixes rust-lang#101048. Fixes rust-lang#101082. Fixes rust-lang#101814. Fixes rust-lang#103132. Fixes rust-lang#103327.
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// compile-flags: -O | ||
// min-llvm-version: 16 | ||
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#![crate_type = "lib"] | ||
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#[no_mangle] | ||
pub fn all_zero(data: &[u64]) -> bool { | ||
// CHECK-LABEL: @all_zero( | ||
// CHECK: [[PHI:%.*]] = phi i1 | ||
// CHECK-NOT: phi i8 | ||
// CHECK-NOT: zext | ||
data.iter().copied().fold(true, |acc, x| acc & (x == 0)) | ||
} |
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// compile-flags: -O | ||
// min-llvm-version: 16 | ||
// ignore-debug: the debug assertions get in the way | ||
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#![crate_type = "lib"] | ||
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#[no_mangle] | ||
pub fn test() -> usize { | ||
// CHECK-LABEL: @test( | ||
// CHECK: ret {{i64|i32}} 165 | ||
let values = [23, 16, 54, 3, 60, 9]; | ||
let mut acc = 0; | ||
for item in values { | ||
acc += item; | ||
} | ||
acc | ||
} |
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// compile-flags: -O | ||
// min-llvm-version: 16 | ||
// ignore-debug: the debug assertions get in the way | ||
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#![crate_type = "lib"] | ||
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#[no_mangle] | ||
pub fn test(a: [i32; 10]) -> i32 { | ||
// CHECK-LABEL: @test( | ||
// CHECK: [[L1:%.+]] = load i32 | ||
// CHECK: [[L2:%.+]] = load i32 | ||
// CHECK: [[R:%.+]] = add i32 [[L1]], [[L2]] | ||
// CHECK: ret i32 [[R]] | ||
let mut sum = 0; | ||
for v in a.iter().skip(8) { | ||
sum += v; | ||
} | ||
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sum | ||
} |
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// compile-flags: -O -C overflow-checks | ||
// min-llvm-version: 16 | ||
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#![crate_type = "lib"] | ||
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#[no_mangle] | ||
pub fn test(arr: &[u8], weight: u32) { | ||
// CHECK-LABEL: @test( | ||
// CHECK-NOT: panic | ||
let weight = weight.min(256 * 256 * 256); | ||
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for x in arr { | ||
assert!(weight <= 256 * 256 * 256); | ||
let result = *x as u32 * weight; | ||
} | ||
} |
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// compile-flags: -O | ||
// min-llvm-version: 16 | ||
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#![crate_type = "lib"] | ||
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#[no_mangle] | ||
pub fn test(a: i32, b: i32) -> bool { | ||
// CHECK-LABEL: @test( | ||
// CHECK: ret i1 true | ||
let c1 = (a >= 0) && (a <= 10); | ||
let c2 = (b >= 0) && (b <= 20); | ||
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if c1 & c2 { | ||
a + 100 != b | ||
} else { | ||
true | ||
} | ||
} |
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// compile-flags: -O | ||
// min-llvm-version: 16 | ||
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#![crate_type = "lib"] | ||
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#[no_mangle] | ||
pub fn test() -> u32 { | ||
// CHECK-LABEL: @test( | ||
// CHECK: ret i32 13 | ||
let s = [1, 2, 3, 4, 5, 6, 7]; | ||
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let mut iter = s.iter(); | ||
let mut sum = 0; | ||
while let Some(_) = iter.next() { | ||
sum += iter.next().map_or(1, |&x| x) | ||
} | ||
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sum | ||
} |
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// compile-flags: -O | ||
// min-llvm-version: 16 | ||
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#![crate_type = "lib"] | ||
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#[no_mangle] | ||
pub fn test(dividend: i64, divisor: i64) -> Option<i64> { | ||
// CHECK-LABEL: @test( | ||
// CHECK-NOT: panic | ||
if dividend > i64::min_value() && divisor != 0 { | ||
Some(dividend / divisor) | ||
} else { | ||
None | ||
} | ||
} |