Chandler Carruth 8470b5b812 [x86] Flip the sentinel values used in the target shuffle mask decoding ...

to significantly more sane sentinels. Notably, everywhere else in the
backend's representation of shuffles uses '-1' to represent undef. The
target shuffle masks really shouldn't diverge from that, especially as
in a few places they are manipulated by shared code.

This causes us to lose some undef lanes in various test masks. I want to
get these back, but technically it isn't invalid and there are a *lot*
of bugs here so I want to try to establish a saner baseline for fixing
some of the bugs by aligning the specific senitnel values used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218561 91177308-0d34-0410-b5e6-96231b3b80d8

2014-09-27 04:42:39 +00:00

..

CMakeLists.txt

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LLVMBuild.txt

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Makefile

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X86ShuffleDecode.cpp

[x86] Implement v16i16 support with AVX2 in the new vector shuffle

2014-09-25 00:24:19 +00:00

X86ShuffleDecode.h

[x86] Flip the sentinel values used in the target shuffle mask decoding

2014-09-27 04:42:39 +00:00