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4 Commits

Author SHA1 Message Date
Craig Topper 2dc0224dbf [X86] Teach execution domain fixing to convert between FP and int unpack instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313508 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-09-18 03:29:54 +00:00
Simon Pilgrim 5313649a34 [X86][SSE] Dropped -mcpu from vector shuffle tests 
Use triple and attribute only for consistency 

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305908 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-06-21 13:26:52 +00:00
Gadi Haber cd2a3f9e73 [X86][AVX2] bugzilla bug 21281 Performance regression in vector interleave in AVX2 
This is a patch for an on-going bugzilla bug 21281 on the generated X86 code for a matrix transpose8x8 subroutine which requires vector interleaving. The generated code in AVX2 is currently non-optimal and requires 60 instructions as opposed to only 40 instructions generated for AVX1.
 The patch includes a fix for the AVX2 case where vector unpack instructions use less operations than the vector blend operations available in AVX2.
 In this case using vector unpack instructions is more efficient.

Reviewers:
zvi  
delena  
igorb  
craig.topper  
guyblank  
eladcohen  
m_zuckerman  
aymanmus  
RKSimon 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298840 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-27 12:13:37 +00:00
Simon Pilgrim 2c5977cfee [X86][SSE] Added vector interleave test (PR21281) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279375 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-08-20 17:07:38 +00:00