diff options
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64StackTagging.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64StackTagging.cpp b/llvm/lib/Target/AArch64/AArch64StackTagging.cpp index a1ced77..71bcefff 100644 --- a/llvm/lib/Target/AArch64/AArch64StackTagging.cpp +++ b/llvm/lib/Target/AArch64/AArch64StackTagging.cpp @@ -71,6 +71,11 @@ static cl::opt<bool> cl::init(true), cl::desc("Use Stack Safety analysis results")); +static cl::opt<bool> + ClStackTaggingUAS("stack-tagging-use-after-scope", cl::Hidden, + cl::init(true), + cl::desc("detect use after scope within function")); + static cl::opt<unsigned> ClScanLimit("stack-tagging-merge-init-scan-limit", cl::init(40), cl::Hidden); @@ -607,7 +612,7 @@ bool AArch64StackTagging::runOnFunction(Function &Fn) { SInfo.UnrecognizedLifetimes.empty() && memtag::isStandardLifetime(Info.LifetimeStart, Info.LifetimeEnd, DT, LI, ClMaxLifetimes); - if (StandardLifetime) { + if (ClStackTaggingUAS && StandardLifetime) { IntrinsicInst *Start = Info.LifetimeStart[0]; uint64_t Size = cast<ConstantInt>(Start->getArgOperand(0))->getZExtValue(); |