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(parent: 54529ed) | patch
[msan] Avoid extra origin address realignment.
authorEvgeniy Stepanov <eugeni.stepanov@gmail.com>
Fri, 5 Dec 2014 14:34:03 +0000 (14:34 +0000)
committerEvgeniy Stepanov <eugeni.stepanov@gmail.com>
Fri, 5 Dec 2014 14:34:03 +0000 (14:34 +0000)
commitc4c08aab6403bbf95615e4cb8622fb6263d7e853
tree7d32df702e4c4352a5fbdaee8d5c63b9c3b121ddtree | snapshot
parent54529ed1c4d0dd91f54231e55cfb8bdaccb643facommit | diff
[msan] Avoid extra origin address realignment.

Do not realign origin address if the corresponding application
address is at least 4-byte-aligned.

Saves 2.5% code size in track-origins mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223464 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/Instrumentation/MemorySanitizer.cpp diff | blob | history
test/Instrumentation/MemorySanitizer/origin-alignment.ll [new file with mode: 0644] blob
C/C++ LLVM-based compilers that forbids OOTA behaviors