Commit Graph

3 Commits

Author SHA1 Message Date
Bill Seurer 8be14f11ce [PowerPC] This revision adds 68 of the missing "Predefined Functions for Vector Programming" from appendix A of the OpenPOWER ABI for Linux Supplement document.
I also added tests for the new functions and updated another test that was looking for specific line numbers in error messages from altivec.h.

https://llvm.org/bugs/show_bug.cgi?id=23679

http://reviews.llvm.org/D10131

llvm-svn: 239066
2015-06-04 18:45:44 +00:00
Bill Schmidt 41e14c4dfa [PPC64] Add vector pack/unpack support from ISA 2.07
This patch adds support for the following new instructions in the
Power ISA 2.07:

  vpksdss
  vpksdus
  vpkudus
  vpkudum
  vupkhsw
  vupklsw

These instructions are available through the vec_packs, vec_packsu,
vec_unpackh, and vec_unpackl built-in interfaces.  These are
lane-sensitive instructions, so the built-ins have different
implementations for big- and little-endian, and the instructions must
be marked as killing the vector swap optimization for now.

The first three instructions perform saturating pack operations.  The
fourth performs a modulo pack operation, which means it can be
represented with a vector shuffle, and conversely the appropriate
vector shuffles may cause this instruction to be generated.  The other
instructions are only generated via built-in support for now.

I noticed during patch preparation that the macro __VSX__ was not
previously predefined when the power8-vector or direct-move features
are requested.  This is an error, and I've corrected that here as
well.

Appropriate tests have been added.

There is a companion patch to llvm for the rest of this support.

llvm-svn: 237500
2015-05-16 01:02:25 +00:00
Kit Barton 8553bec911 Add builtins for the 64-bit vector integer arithmetic instructions added in POWER8.
These are the Clang-related changes for the instructions added to LLVM in http://reviews.llvm.org/D7959.

Phabricator review: http://reviews.llvm.org/D8041

llvm-svn: 231931
2015-03-11 15:57:19 +00:00