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[msan] Disable assert with msan 

The assert uses data from just destroyed BasicBlock.
This commit is contained in:
Vitaly Buka 2022-04-19 16:26:17 -07:00
parent 0d0a99cb96
commit 33c5d8f939
1 changed files with 4 additions and 0 deletions
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4
llvm/lib/CodeGen/MachineModuleInfo.cpp
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@ -24,6 +24,7 @@
#include "llvm/MC/MCSymbol.h" #include "llvm/MC/MCSymbol.h"
#include "llvm/Pass.h" #include "llvm/Pass.h"
#include "llvm/Support/Casting.h" #include "llvm/Support/Casting.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h" #include "llvm/Support/ErrorHandling.h"
#include "llvm/Target/TargetLoweringObjectFile.h" #include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetMachine.h" #include "llvm/Target/TargetMachine.h"
@ -145,8 +146,11 @@ void MMIAddrLabelMap::UpdateForDeletedBlock(BasicBlock *BB) {
assert(!Entry.Symbols.empty() && "Didn't have a symbol, why a callback?"); assert(!Entry.Symbols.empty() && "Didn't have a symbol, why a callback?");
BBCallbacks[Entry.Index] = nullptr; // Clear the callback. BBCallbacks[Entry.Index] = nullptr; // Clear the callback.
#if !LLVM_MEMORY_SANITIZER_BUILD
// BasicBlock is destroyed already, so this access is UB detectable by msan.
assert((BB->getParent() == nullptr || BB->getParent() == Entry.Fn) && assert((BB->getParent() == nullptr || BB->getParent() == Entry.Fn) &&
"Block/parent mismatch"); "Block/parent mismatch");
#endif
for (MCSymbol *Sym : Entry.Symbols) { for (MCSymbol *Sym : Entry.Symbols) {
if (Sym->isDefined()) if (Sym->isDefined())