https://github.com/EricWF updated https://github.com/llvm/llvm-project/pull/73998
>From 2e7676bac9fb0c8694dd1ee635508ae4d4a6421d Mon Sep 17 00:00:00 2001 From: Eric Fiselier <e...@efcs.ca> Date: Thu, 30 Nov 2023 17:23:37 -0500 Subject: [PATCH] Work around GCC test failure that is caused by enabling optimizations. While trying to work around MSAN/TSAN build timeouts, we enabled optimizations on some tests. This caused GCC to start complaining that some values may be uninitialized. I believe GCC is wrong, but more investigation is needed. The values are initialized when the variable `__g` is either < 0 or >= 0. Which only leaves out NaN I believe, which is likely well into UB land anyway. However, more investigation needed. --- .../rand.dist.bern/rand.dist.bern.negbin/eval.pass.cpp | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval.pass.cpp index 9ab8b6f427492..d0f6fbf0a1203 100644 --- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval.pass.cpp +++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval.pass.cpp @@ -10,7 +10,11 @@ // This test is super slow, in particular with msan or tsan. In order to avoid timeouts and to // spend less time waiting for this particular test to complete we compile with optimizations. -// ADDITIONAL_COMPILE_FLAGS: -O1 +// ADDITIONAL_COMPILE_FLAGS(msan): -O1 +// ADDITIONAL_COMPILE_FLAGS(tsan): -O1 + +// FIXME: This and other tests fail under GCC with optimizations enabled. +// More investigation is needed, but it appears that GCC is performing more constant folding. // <random> _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
