[msan] Fix a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211094 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evgeniy Stepanov 2014-06-17 11:26:00 +00:00
parent 9f27b050b0
commit 3a001aab4d

View File

@ -2018,10 +2018,10 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
}
}
// \brief Instrument vector shift instrinsic.
// \brief Instrument vector pack instrinsic.
//
// This function instruments intrinsics like x86_mmx_packsswb, that
// packs elements of 2 input vectors into half as much bits with saturation.
// packs elements of 2 input vectors into half as many bits with saturation.
// Shadow is propagated with the signed variant of the same intrinsic applied
// to sext(Sa != zeroinitializer), sext(Sb != zeroinitializer).
// EltSizeInBits is used only for x86mmx arguments.