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Commit Graph

9 Commits

Author SHA1 Message Date
Nadav Rotem
b8710ee43f When emulating vselect using OR/AND/XOR make sure to bitcast the result back to the original type.
llvm-svn: 154764
2012-04-15 15:08:09 +00:00
Nadav Rotem
79f1692fe0 Revert 147426 because it caused pr11696.
llvm-svn: 147485
2012-01-03 22:19:42 +00:00
Nadav Rotem
6929a8868b Optimize the sequence blend(sign_extend(x)) to blend(shl(x)) since SSE blend instructions only look at the highest bit.
llvm-svn: 147426
2012-01-02 08:05:46 +00:00
Duncan Sands
4149334f09 Synthesize x86 max/min instructions also for vectors (i.e. produce
maxps and maxpd).  This broke the sse41-blend.ll testcase by causing
maxpd to be produced rather than a cmp+blend pair, which is the reason
I tweaked it.  Gives a small speedup on doduc with dragonegg when the
GCC vectorizer is used.

llvm-svn: 139986
2011-09-17 16:49:39 +00:00
Nadav Rotem
8e3edccebe Add integer promotion support for vselect
llvm-svn: 139692
2011-09-14 14:42:15 +00:00
Bruno Cardoso Lopes
eb09ab7c3f Change testcase commandline to be more strict and silence buildbots
llvm-svn: 139554
2011-09-12 22:59:26 +00:00
Bruno Cardoso Lopes
64e2e852f9 Revert the wrong part of r139528, and fix testcases.
llvm-svn: 139541
2011-09-12 21:24:07 +00:00
Bruno Cardoso Lopes
c67e996fc3 Not sure how CMPPS and CMPPD had already ever worked, I guess it didn't.
However with this fix it does now.

Basically the operand order for the x86 target specific node
is not the same as the instruction, but since the intrinsic need that
specific order at the instruction definition, just change the order
during legalization. Also, there were some wrong invertions of condition
codes, such as GE => LE, GT => LT, fix that too. Fix PR10907.

llvm-svn: 139528
2011-09-12 19:30:40 +00:00
Bruno Cardoso Lopes
74a67e22b0 Add AVX versions of blend vector operations and fix some issues noticed
in Nadav's r139285 and r139287 commits.

1) Rename vsel.ll to a more descriptive name
2) Change the order of BLEND operands to "Op1, Op2, Cond", this is
necessary because PBLENDVB is already used in different places with
this order, and it was being emitted in the wrong way for vselect
3) Add AVX patterns and tests for the same SSE41 instructions

llvm-svn: 139305
2011-09-08 18:05:08 +00:00