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5 Commits

Author SHA1 Message Date
Craig Topper 12b72def4e 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 76bc28bac6 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 eca99c4b5a 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 14a95bda04 Although we already support this, add testcases for consistency 
llvm-svn: 135728
 2011-07-22 00:15:03 +00:00
Bruno Cardoso Lopes 91eff5140f 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