[PATCH] D121629: clang: also check alloc_alignment claims in return

Augie Fackler via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Mon Mar 14 11:14:29 PDT 2022


durin42 created this revision.
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Prior to this patch, we only check alloc_alignment claims in the caller.
I'm about to add some extra logic that threads alloc_alignment
information down into LLVM, which would then have a chance to defeat the
sanitizer checks by performing optimizations. To avoid that, we also
check alignment claims in the called function prior to return.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121629

Files:
  clang/lib/CodeGen/CGCall.cpp
  clang/lib/CodeGen/CodeGenFunction.cpp
  clang/test/CodeGen/catch-alignment-assumption-attribute-alloc_align-on-function-variable.cpp
  clang/test/CodeGen/catch-alignment-assumption-attribute-alloc_align-on-function.cpp

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