[llvm-branch-commits] [sanitizer] Rename DEFINE_REAL_PTHREAD_FUNCTIONS (PR #96527)

2024-06-25 Thread Dmitry Vyukov via llvm-branch-commits 

https://github.com/dvyukov approved this pull request.


https://github.com/llvm/llvm-project/pull/96527
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[llvm-branch-commits] [tsan] Test `__tsan_test_only_on_fork` only on Mac (PR #96597)

2024-06-25 Thread Dmitry Vyukov via llvm-branch-commits 

https://github.com/dvyukov approved this pull request.


https://github.com/llvm/llvm-project/pull/96597
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[llvm-branch-commits] [tsan] Lock/Unlock allocator and stacks on fork (PR #96600)

2024-06-25 Thread Dmitry Vyukov via llvm-branch-commits 

https://github.com/dvyukov approved this pull request.

Note that tsan simply disables itself after multithreaded fork, so it produces 
false sense to operation with die_after_fork=0. And it still can deadlock on 
mutex/atomic operations and maybe more.

https://github.com/llvm/llvm-project/pull/96600
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[llvm-branch-commits] [IR] Introduce `llvm.experimental.hot()` (PR #84850)

2024-03-12 Thread Dmitry Vyukov via llvm-branch-commits 


@@ -1722,6 +1722,11 @@ def int_debugtrap : Intrinsic<[]>,
 def int_ubsantrap : Intrinsic<[], [llvm_i8_ty],
   [IntrNoReturn, IntrCold, ImmArg>]>;
 
+// Return true if profile counter for containing block is hot.
+def int_experimental_hot : Intrinsic<[llvm_i1_ty], [],
+  [IntrInaccessibleMemOnly, IntrWriteMem,

dvyukov wrote:

Can't IntrWriteMem have significant effect on performance of the generated 
code? Why exactly do we need it? A comment would be useful. It's not writing to 
memory, is there a more precise attribute to capture what we need?

https://github.com/llvm/llvm-project/pull/84850
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[llvm-branch-commits] [dse] Skip llvm.allow.{runtime, ubsan}.check() (PR #86067)

2024-03-21 Thread Dmitry Vyukov via llvm-branch-commits 

https://github.com/dvyukov approved this pull request.


https://github.com/llvm/llvm-project/pull/86067
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[llvm-branch-commits] [compiler-rt] [nfc][tsan] Better name for locking functions (PR #96598)

2024-12-27 Thread Dmitry Vyukov via llvm-branch-commits 

https://github.com/dvyukov approved this pull request.


https://github.com/llvm/llvm-project/pull/96598
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