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4 Commits

Author SHA1 Message Date
Craig Topper e4f868ea16 [AVX512] Mark EVEX VMOVSSrm and VMOVSDrm as canFoldAsLoad and isReMaterializable. 
llvm-svn: 277120
 2016-07-29 06:06:04 +00:00
Craig Topper 07aa37039e [AVX512] Add AVX512 run lines to some tests for scalar fma/add/sub/mul/div and regenerate. Follow up commits will bring AVX512 code up to the same quality as AVX/SSE. 
llvm-svn: 277118
 2016-07-29 06:05:58 +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
Ahmed Bougacha ed3c4d1a3d [X86] Teach load folding to accept scalar _Int users of MOVSS/MOVSD. 
The _Int instructions are special, in that they operate on the full
VR128 instead of FR32.  The load folding then looks at MOVSS, at the
user, and bails out when it sees a size mismatch.

What we really know is that the rm_Int instructions don't load the
higher lanes, so folding is fine.

This happens for the straightforward intrinsic code, e.g.:

    _mm_add_ss(a, _mm_load_ss(p));

Fixes PR23349.

Differential Revision: http://reviews.llvm.org/D10554

llvm-svn: 240326
 2015-06-22 20:51:51 +00:00