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(parent: 5c37d16) | patch
[X86][SSE2] Fix zero/any extension shuffles that don't start from the first element
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Thu, 24 Sep 2015 21:02:17 +0000 (21:02 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Thu, 24 Sep 2015 21:02:17 +0000 (21:02 +0000)
commit5769b61791c3ff8ebdcfcd6ccd337c06547cda62
treecbd508e93a747a77de06adf5f81a421c74033430tree | snapshot
parent5c37d1622d602fe7cd6786b939b876361852d4c7commit | diff
[X86][SSE2] Fix zero/any extension shuffles that don't start from the first element

Fix for D12561 - we weren't correctly ensuring that the base element for extension was moved to start on a boundary suitable for UNPCKL/H

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248536 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86ISelLowering.cpp diff | blob | history
test/CodeGen/X86/vector-zext.ll diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors