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(parent: 275944a) | patch
Get rid of an incorrect optimization for shuffles with PALIGNR and simplify isPALIGNR...
authorEli Friedman <eli.friedman@gmail.com>
Mon, 25 Jul 2011 21:36:45 +0000 (21:36 +0000)
committerEli Friedman <eli.friedman@gmail.com>
Mon, 25 Jul 2011 21:36:45 +0000 (21:36 +0000)
commit63f8dde4827c801499a9887c7a10ba43dac9df08
tree3e33130c552dde6e76cfb921cb60a37abc451231tree | snapshot
parent275944afb55086d0b4b20d4d831de7c1c7507925commit | diff
Get rid of an incorrect optimization for shuffles with PALIGNR and simplify isPALIGNRMask.

Addresses PR10466, although the crash from that PR only triggers in cases where DAGCombine misses optimizing a shuffle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135980 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86ISelLowering.cpp diff | blob | history
test/CodeGen/X86/palignr.ll diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors