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5 Commits

Author SHA1 Message Date
Nadav Rotem
f8db4478f8 Revert r169638 because it broke Mesa llvmpipe tests. 
Fix PR15239.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175985 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-02-24 07:09:35 +00:00
Nadav Rotem
af59e9adbd When we use the BLEND instruction that uses the MSB as a mask, we can remove 
the VSRI instruction before it since it does not affect the MSB.

Thanks Craig Topper for suggesting this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169638 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-07 21:43:11 +00:00
Nadav Rotem
c2d064f028 Revert 147426 because it caused pr11696. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147485 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-03 22:19:42 +00:00
Nadav Rotem
a46f35d3d6 Optimize the sequence blend(sign_extend(x)) to blend(shl(x)) since SSE blend instructions only look at the highest bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147426 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-02 08:05:46 +00:00
Nadav Rotem
6059b83695 PR11662. 
Promotion of the mask operand needs to be done using PromoteTargetBoolean, and not padded with garbage.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147309 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-28 13:08:20 +00:00