[PATCH] D27251: [PPC] some bugs mainly about sign problem fixed in altivec.h

[ZiXuan Wu via Phabricator via cfe-commits]

Zeson created this revision.
Zeson added reviewers: nemanjai, sfertile, jtony, hfinkel, syzaara, lei, kbarton.
Zeson added a subscriber: cfe-commits.

It's mainly about signed and unsigned llvm builtins confusion.
When function args are bool vector and signed vector, it should be mapped to signed version instruction.

reference: ALTIVECPIM.pdf <http://www.nxp.com/assets/documents/data/en/reference-manuals/ALTIVECPIM.pdf>


https://reviews.llvm.org/D27251

Files:
  lib/Headers/altivec.h
  test/CodeGen/builtins-ppc-altivec.c
  test/CodeGen/builtins-ppc-p8vector.c
  test/CodeGen/builtins-ppc-vsx.c

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