72c8cd7bc3
Remove some instructions that existed to provide aliases to the assembler. Can be done with InstAlias instead. Unfortunately, this was causing printer to use 'vmovq' or 'vmovd' based on what was parsed. To cleanup the inconsistencies convert all 'vmovd' with 64-bit registers to 'vmovq', but provide an alias so that 'vmovd' will still parse.
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llvm-svn: 192171
2013-10-08 05:53:50 +00:00
99c68dd964
X86: Do splat promotion later, so the optimizer can chew on it first.
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This catches many cases where we can emit a more efficient shuffle for a
specific mask or when the mask contains undefs. Once the splat is lowered to
unpacks we can't do that anymore.
There is a possibility of moving the promotion after pshufb matching, but I'm
not sure if pshufb with a mask loaded from memory is faster than 3 shuffles, so
I avoided that for now.
llvm-svn: 173569
2013-01-26 11:44:21 +00:00
481e50efe0
X86: Prefer using VPSHUFD over VPERMIL because it has better throughput.
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llvm-svn: 169624
2012-12-07 19:01:13 +00:00
a17f3f8c30
Normalize splat 256bit vectors with 8 elements.
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llvm-svn: 168600
2012-11-26 19:24:31 +00:00
b27fd77c3f
Add instruction selection for 256-bit VPSHUFD and 128-bit VPERMILPS/VPERMILPD.
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llvm-svn: 149968
2012-02-07 06:28:42 +00:00
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.
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llvm-svn: 145376
2011-11-29 05:37:58 +00:00
30c811246f
Remove X86-dependent stuff from SSEDomainFix.
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This also enables domain swizzling for AVX code which required a few
trivial test changes.
The pass will be moved to lib/CodeGen shortly.
llvm-svn: 140659
2011-09-27 23:50:46 +00:00
9e9f2ce32d
Fix a nasty bug where a v4i64 was being wrong emitted with 32-bit
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permutations. Also tidy up some patterns and make them close to their
instruction definition!
llvm-svn: 138392
2011-08-23 22:06:37 +00:00
6612e35b0d
Add support for breaking 256-bit v16i16 and v32i8 VSETCC into two 128-bit ones, avoiding sclarization. Add vex form of pcmpeqq and pcmpgtq. Fixes more cases for PR10712.
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llvm-svn: 138321
2011-08-23 04:36:33 +00:00
3400825b41
Update test to not use the scalar type to splat from a load
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llvm-svn: 137809
2011-08-17 02:29:15 +00:00
ed786a346e
Now that we have a canonical way to handle 256-bit splats:
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vinsertf128 $1 + vpermilps $0, remove the old code that used to first
do the splat in a 128-bit vector and then insert it into a larger one.
This is better because the handling code gets simpler and also makes a
better room for the upcoming vbroadcast!
llvm-svn: 137807
2011-08-17 02:29:10 +00:00
a2d8bb97b9
Splats for v8i32/v8f32 can be handled by VPERMILPSY. This was causing
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infinite recursive calls in legalize. Fix PR10562
llvm-svn: 137296
2011-08-11 02:49:44 +00:00
572c9aaf53
Use the splat index to generate the desired shuffle. Otherwise we
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could only get undefs and the vector shuffle becomes an undef,
generating wrong code.
llvm-svn: 137295
2011-08-11 02:49:41 +00:00
337a7fdb13
Rename and tidy up tests
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llvm-svn: 137103
2011-08-09 03:04:23 +00:00
Craig Topper