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| author | George Burgess IV <george.burgess.iv@gmail.com> | 2017-03-21 20:08:59 +0000 |
|---|---|---|
| committer | George Burgess IV <george.burgess.iv@gmail.com> | 2017-03-21 20:08:59 +0000 |
| commit | 56c7e88c2cd8f4f6d440f50d9f19401763f3122b (patch) | |
| tree | 387c614351099aaccde94582e47a058120215ca3 /llvm/lib/Transforms | |
| parent | ce39fdd6eeabc4a007ce7821a247cc58b816e0d7 (diff) | |
| download | bcm5719-llvm-56c7e88c2cd8f4f6d440f50d9f19401763f3122b.tar.gz bcm5719-llvm-56c7e88c2cd8f4f6d440f50d9f19401763f3122b.zip | |
Let llvm.objectsize be conservative with null pointers
This adds a parameter to @llvm.objectsize that makes it return
conservative values if it's given null.
This fixes PR23277.
Differential Revision: https://reviews.llvm.org/D28494
llvm-svn: 298430
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp index afcf86547c7..8784fa989ea 100644 --- a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp +++ b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp @@ -2185,8 +2185,9 @@ bool AddressSanitizer::runOnFunction(Function &F) { (ClInstrumentationWithCallsThreshold >= 0 && ToInstrument.size() > (unsigned)ClInstrumentationWithCallsThreshold); const DataLayout &DL = F.getParent()->getDataLayout(); - ObjectSizeOffsetVisitor ObjSizeVis(DL, TLI, F.getContext(), - /*RoundToAlign=*/true); + ObjectSizeOpts ObjSizeOpts; + ObjSizeOpts.RoundToAlign = true; + ObjectSizeOffsetVisitor ObjSizeVis(DL, TLI, F.getContext(), ObjSizeOpts); // Instrument. int NumInstrumented = 0; |
