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(parent: 5b7ac8b) | patch
[msan] Workaround for invalid origins in shufflevector.
authorEvgeniy Stepanov <eugeni.stepanov@gmail.com>
Mon, 9 Jun 2014 14:29:34 +0000 (14:29 +0000)
committerEvgeniy Stepanov <eugeni.stepanov@gmail.com>
Mon, 9 Jun 2014 14:29:34 +0000 (14:29 +0000)
commit24f5e55fce66d8c824aadf8dddfa256c040ea68e
treea5545ab6bdd68f1a33758b8abfc22eaad0826f7btree | snapshot
parent5b7ac8ba184aa020fcda6c0e787a2077edd882d2commit | diff
[msan] Workaround for invalid origins in shufflevector.

Makes origin propagation ignore literal undef operands, and,
in general, any operand we don't have origin for.

https://code.google.com/p/memory-sanitizer/issues/detail?id=56

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210472 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/Instrumentation/MemorySanitizer.cpp diff | blob | history
test/Instrumentation/MemorySanitizer/missing_origin.ll [new file with mode: 0644] blob
C/C++ LLVM-based compilers that forbids OOTA behaviors