Implement jl_cpu_pause on PPC64 #49573
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vchuravy
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KristofferC
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Aug 18, 2023
Backported PRs: - [x] #47782 <!-- Generalize Bool parse method to AbstractString --> - [x] #48634 <!-- Remove unused "deps" mechanism in internal sorting keywords [NFC] --> - [x] #49931 <!-- Lock finalizers' lists at exit --> - [x] #50064 <!-- Fix numbered prompt with input only with comment --> - [x] #50474 <!-- docs: Fix a `!!! note` which was miscapitalized --> - [x] #50516 <!-- Fix visibility of assert on GCC12/13 --> - [x] #50635 <!-- `versioninfo()`: include build info and unofficial warning --> - [x] #49915 <!-- Revert "Remove number / vector (#44358)" --> - [x] #50781 <!-- fix `bit_map!` with aliasing --> - [x] #50845 <!-- fix #50438, use default pool for at-threads --> - [x] #49031 <!-- Update inference.md --> - [x] #50289 <!-- Initialize prev_nold and nold in gc_reset_page --> - [x] #50559 <!-- Expand kwcall lowering positional default check to vararg --> - [x] #49582 <!-- Update HISTORY.md for `DelimitedFiles` --> - [x] #50341 <!-- invokelatest docs should say not exported before 1.9 --> - [x] #50525 <!-- only check that values are finite in `generic_lufact` when `check=true` --> - [x] #50444 <!-- Optimize getfield lowering to avoid boxing in some cases --> - [x] #50523 <!-- Avoid generic call in most cases for getproperty --> - [x] #50860 <!-- Add `Base.get_extension` to docs/API --> - [x] #50164 <!-- codegen: handle dead code with unsafe_store of FCA pointers --> - [x] #50568 <!-- `Array(::AbstractRange)` should return an `Array` --> - [x] #50871 <!-- macOS: Don't inspect dead threadtls during exception handling. --> Need manual backport: - [ ] #48542 <!-- Add docs on task-specific buffering using multithreading --> - [ ] #50591 <!-- build: fix various makefile bugs --> Non-merged PRs with backport label: - [ ] #50842 <!-- Avoid race conditions with recursive rm --> - [ ] #50823 <!-- Make ranges more robust with unsigned indexes. --> - [ ] #50663 <!-- Fix Expr(:loopinfo) codegen --> - [ ] #49716 <!-- Update varinfo() docstring signature --> - [ ] #49713 <!-- prevent REPL from erroring in numbered mode in some situations --> - [ ] #49573 <!-- Implement jl_cpu_pause on PPC64 --> - [ ] #48726 <!-- fix macro expansion of property destructuring --> - [ ] #48642 <!-- Use gc alloc instead of alloc typed in lowering --> - [ ] #48183 <!-- Don't use pkgimage for package if any includes fall in tracked path for coverage or alloc tracking --> - [ ] #48050 <!-- improve `--heap-size-hint` arg handling --> - [ ] #47615 <!-- Allow threadsafe access to buffer of type inference profiling trees -->
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I took
or 27,27,27from https://stackoverflow.com/questions/5425506/equivalent-of-x86-pause-instruction-for-ppc/7588941#7588941The linux kernel has a more complicated sequence https://lwn.net/Articles/722786/