[PATCH] D89191: [ASAN] Make sure we are only processing lifetime markers with offset 0 to alloca

[Xun Li via Phabricator via llvm-commits]

lxfind added inline comments.


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Comment at: llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp:1083
+    // beginning of the alloca.
+    AllocaInst *AI = findAllocaForValue(II.getArgOperand(1), true);
     if (!AI) {
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vitalybuka wrote:
> Similar problem is if the size of lifetime is smaller then alloca.
> Would you like to handle that case, here or in the another patch? 
Is that a problem though? A lifetime marker should always be accurate, that is, if the marker indicates that only part of the region is alive, it should be ok to just mark that region alive?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D89191/new/

https://reviews.llvm.org/D89191