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-rw-r--r--llvm/lib/CodeGen/ShrinkWrap.cpp9
1 files changed, 8 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/ShrinkWrap.cpp b/llvm/lib/CodeGen/ShrinkWrap.cpp
index 8a797018815..07371f66061 100644
--- a/llvm/lib/CodeGen/ShrinkWrap.cpp
+++ b/llvm/lib/CodeGen/ShrinkWrap.cpp
@@ -468,7 +468,14 @@ bool ShrinkWrap::isShrinkWrapEnabled(const MachineFunction &MF) {
return TFI->enableShrinkWrapping(MF) &&
// Windows with CFI has some limitations that make it impossible
// to use shrink-wrapping.
- !MF.getTarget().getMCAsmInfo()->usesWindowsCFI();
+ !MF.getTarget().getMCAsmInfo()->usesWindowsCFI() &&
+ // Sanitizers look at the value of the stack at the location
+ // of the crash. Since a crash can happen anywhere, the
+ // frame must be lowered before anything else happen for the
+ // sanitizers to be able to get a correct stack frame.
+ !(MF.getFunction()->hasFnAttribute(Attribute::SanitizeAddress) ||
+ MF.getFunction()->hasFnAttribute(Attribute::SanitizeThread) ||
+ MF.getFunction()->hasFnAttribute(Attribute::SanitizeMemory));
// If EnableShrinkWrap is set, it takes precedence on whatever the
// target sets. The rational is that we assume we want to test
// something related to shrink-wrapping.
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