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11 Commits

Author SHA1 Message Date
Craig Topper ff23af4299 [AVX-512] Teach shuffle lowering to recognize 512-bit zero extends. 
llvm-svn: 284105
 2016-10-13 05:29:41 +00:00
Craig Topper 05242739c2 [AVX-512] Add tests for basic 512-bit zero extending shuffle patterns. Code will be improved in a future commit. 
llvm-svn: 284104
 2016-10-13 05:29:37 +00:00
Craig Topper 7da0465062 [X86] Add 512-bit VPBROADCASTB and VPBROADCASTW tests. 
llvm-svn: 282685
 2016-09-29 05:54:32 +00:00
Craig Topper 600685d510 [AVX-512] Add patterns to support VZEXT_MOVL from 512-bit vectors with 64-bit and 32-bit elements. 
Fixes PR28961.

llvm-svn: 278592
 2016-08-13 05:33:12 +00:00
Craig Topper 597aa42fec [AVX512] Remove masked unpack intrinsics and autoupgrade to vectorshuffle and selects. 
llvm-svn: 273543
 2016-06-23 07:37:33 +00:00
Craig Topper 504fba5c8a [AVX512] Lower v8i64 and v16i32 to pshufd when possible. 
llvm-svn: 272473
 2016-06-11 13:43:21 +00:00
Craig Topper 40abd1cc61 [AVX512] Add support for lowering v32i16 shuffles with repeated lanes. This allows us to create 512-bit PSHUFLW/PSHUFHW. 
llvm-svn: 272450
 2016-06-11 03:27:42 +00:00
Simon Pilgrim 0ab9d3026a [X86][AVX512] Added support for lowering 512-bit vector shuffles to bit/byte shifts 
512-bit VPSLLDQ/VPSRLDQ can only be used for avx512bw targets so lowerVectorShuffleAsShift had to be adjusted to include the subtarget

llvm-svn: 272300
 2016-06-09 20:13:58 +00:00
Simon Pilgrim 3e5fb61978 [X86][AVX2] Broadcast subvectors 
AVX2 can only broadcast from the zero'th element of a vector, but if the broadcastable element is the zero'th element of a 128-bit subvector its advantageous to extract the subvector, broadcast from that and avoid the loading of shuffle mask data that would be needed for VPERMPS/VPERMD. The only exception being when the source type is 4f64 or 4i64 which can directly use the immediate shuffle VPERMPD/VPERMQ directly.

Differential Revision: http://reviews.llvm.org/D16050

llvm-svn: 258081
 2016-01-18 20:59:04 +00:00
James Y Knight 7c905063c5 Make utils/update_llc_test_checks.py note that the assertions are 
autogenerated.

Also update existing test cases which appear to be generated by it and
weren't modified (other than addition of the header) by rerunning it.

llvm-svn: 253917
 2015-11-23 21:33:58 +00:00
Elena Demikhovsky e88038f235 AVX-512: Lowering for 512-bit vector shuffles. 
Vector types: <8 x 64>, <16 x 32>, <32 x 16> float and integer.

Differential Revision: http://reviews.llvm.org/D10683

llvm-svn: 246981
 2015-09-08 06:38:21 +00:00