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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2018-12-27 00:21:20 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2018-12-27 00:21:20 +0000 |
| commit | faef9b77de6679d29fe0b011210e8bc018b4966f (patch) | |
| tree | 4d7e12542ea097c349bc69b847eb45ef86f023d9 /compiler-rt/lib/msan | |
| parent | f227621036351c8f0e142e938d4a597480443650 (diff) | |
| download | bcm5719-llvm-faef9b77de6679d29fe0b011210e8bc018b4966f.tar.gz bcm5719-llvm-faef9b77de6679d29fe0b011210e8bc018b4966f.zip | |
[msan] Disable tail call optimization in msan rtl.
This should give us better error stack traces on the bots, in
particular, for https://bugs.llvm.org/show_bug.cgi?id=40162
llvm-svn: 350080
Diffstat (limited to 'compiler-rt/lib/msan')
| -rw-r--r-- | compiler-rt/lib/msan/CMakeLists.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/compiler-rt/lib/msan/CMakeLists.txt b/compiler-rt/lib/msan/CMakeLists.txt index 15cc513c20e..1fd0be1ae86 100644 --- a/compiler-rt/lib/msan/CMakeLists.txt +++ b/compiler-rt/lib/msan/CMakeLists.txt @@ -38,6 +38,11 @@ endif() # Prevent clang from generating libc calls. append_list_if(COMPILER_RT_HAS_FFREESTANDING_FLAG -ffreestanding MSAN_RTL_CFLAGS) +# Tracking down https://bugs.llvm.org/show_bug.cgi?id=40162 +if(CMAKE_SYSTEM_NAME MATCHES "Linux") + list(APPEND MSAN_RTL_CFLAGS -fno-optimize-sibling-calls) +endif() + set(MSAN_RUNTIME_LIBRARIES) # Static runtime library. |
