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Commit Graph

5 Commits

Author SHA1 Message Date
Craig Topper
aca91b9f14 Fix VINSERTF128/VEXTRACTF128 to be marked as FP instructions. Allow execution dependency fix pass to convert them to their integer equivalents when AVX2 is enabled.
llvm-svn: 145376
2011-11-29 05:37:58 +00:00
Bruno Cardoso Lopes
e24a043703 Add patterns to generate copies for extract_subvector instead of
using vextractf128. This will reduce the number of issued instruction
for several avx codes.

llvm-svn: 136323
2011-07-28 01:26:50 +00:00
Bruno Cardoso Lopes
1f63a37172 Add a few patterns to match allzeros without having to use the fp unit.
Take advantage that the 128-bit vpxor zeros the higher part and use it.
This also fixes PR10491

llvm-svn: 136321
2011-07-28 01:26:43 +00:00
Bruno Cardoso Lopes
85357a460f Although we already support this, add testcases for consistency
llvm-svn: 135728
2011-07-22 00:15:03 +00:00
Bruno Cardoso Lopes
1ee6122518 Add a DAGCombine for transforming 128->256 casts into a simple
vxorps + vinsertf128 pair of instructions

llvm-svn: 135727
2011-07-22 00:15:00 +00:00