Commit Graph

7 Commits

Author SHA1 Message Date
Matt Arsenault 295875efda AMDGPU: Remove 24-bit intrinsics
The known bit matching code seems to work reasonably well,
so these shouldn't really be needed.

llvm-svn: 259180
2016-01-29 10:05:16 +00:00
Matt Arsenault 382d945d16 AMDGPU: Tidy minor td file issues
Make comments and indentation more consistent.

Rearrange a few things to be in a more consistent order,
such as organizing subtarget features from those describing
an actual device property, and those used as options.

llvm-svn: 258789
2016-01-26 04:49:22 +00:00
Tom Stellard 2c82ee60c3 AMDGPU/SI: Consolidate FLAT patterns
Summary:
We had to sets of identical FLAT patterns one inside the
HasFlatAddressSpace predicate and one inside the useFlatForGloabl
predicate.  This patch merges these sets into a single pattern
under the isCIVI predicate.

The reason we can remove the predicates is that when MUBUF instructions
are legal, the instruction selector will prefer selecting those over
FLAT instructions because MUBUF patterns have a higher complexity score.
So, in this case having patterns for FLAT instructions will have no effect.

This change also simplifies the process for forcing global address space
loads to use FLAT instructions, since we no only have to disable the
MUBUF patterns instead of having to disable the MUBUF patterns and
enable the FLAT patterns.

Reviewers: arsenm, cfang

Subscribers: llvm-commits
llvm-svn: 256807
2016-01-05 02:26:37 +00:00
Matt Arsenault fbd9bbfda3 Start replacing vector_extract/vector_insert with extractelt/insertelt
These are redundant pairs of nodes defined for
INSERT_VECTOR_ELEMENT/EXTRACT_VECTOR_ELEMENT.
insertelement/extractelement are slightly closer to the corresponding
C++ node name, and has stricter type checking so prefer it.

Update targets to only use these nodes where it is trivial to do so.
AArch64, ARM, and Mips all have various type errors on simple replacement,
so they will need work to fix.

Example from AArch64:

def : Pat<(sext_inreg (vector_extract (v16i8 V128:$Rn), VectorIndexB:$idx), i8),
          (i32 (SMOVvi8to32 V128:$Rn, VectorIndexB:$idx))>;

Which is trying to do sext_inreg i8, i8.

llvm-svn: 255359
2015-12-11 19:20:16 +00:00
Tom Stellard 45bb48ea19 R600 -> AMDGPU rename
llvm-svn: 239657
2015-06-13 03:28:10 +00:00
Tom Stellard 1be1aa84ec Revert "AMDGPU: Add core backend files for R600/SI codegen v6"
This reverts commit 4ea70107c5e51230e9e60f0bf58a0f74aa4885ea.

llvm-svn: 160303
2012-07-16 18:19:53 +00:00
Tom Stellard bcce80fa95 AMDGPU: Add core backend files for R600/SI codegen v6
llvm-svn: 160270
2012-07-16 14:17:08 +00:00