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5 Commits

Author SHA1 Message Date
Amjad Aboud 4f97751798 [X86] Generate VZEROUPPER for Skylake-avx512. 
VZEROUPPER should not be issued on Knights Landing (KNL), but on Skylake-avx512 it should be.

Differential Revision: https://reviews.llvm.org/D29874

llvm-svn: 296859
 2017-03-03 09:03:24 +00:00
Simon Pilgrim bd26de5021 [X86][SSE] Renamed all_of/any_of reduction patterns tests 
Make it clear these tests sign-extend the comparison result. Some patterns zero-extend to a bool result that we still need to handle.

llvm-svn: 294018
 2017-02-03 17:31:01 +00:00
Simon Pilgrim 20ab6b875a [X86][SSE] Use MOVMSK for all_of/any_of reduction patterns 
This is a first attempt at using the MOVMSK instructions to replace all_of/any_of reduction patterns (i.e. an and/or + shuffle chain).

So far this only matches patterns where we are reducing an all/none bits source vector (i.e. a comparison result) but we should be able to expand on this in conjunction with improvements to 'bool vector' handling both in the x86 backend as well as the vectorizers etc.

Differential Revision: https://reviews.llvm.org/D28810

llvm-svn: 293880
 2017-02-02 11:52:33 +00:00
Simon Pilgrim 60662cb5d0 [X86][AVX512] Add all_of/any_of avx512vl tests 
llvm-svn: 292235
 2017-01-17 17:33:18 +00:00
Simon Pilgrim 8b2996fe1a [X86][SSE] Tests showing horizontal all_of/any_of of vector comparison results 
llvm-svn: 292223
 2017-01-17 15:02:01 +00:00