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Author SHA1 Message Date
Eric Christopher cee313d288 Revert "Temporarily Revert "Add basic loop fusion pass."" 
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
 2019-04-17 04:52:47 +00:00
Eric Christopher a863435128 Temporarily Revert "Add basic loop fusion pass." 
As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546
 2019-04-17 02:12:23 +00:00
Simon Pilgrim a131e4e296 [TTI] Add generic UADDSAT/USUBSAT costs 
Add generic costs calculation for UADDSAT/USUBSAT intrinsics, this fallbacks to using generic costs for uadd_with_overflow/usub_with_overflow + a select.

Differential Revision: https://reviews.llvm.org/D56907

llvm-svn: 352044
 2019-01-24 12:27:10 +00:00
Simon Pilgrim 4e38b8f8bd [SLP][X86] Split prefer-256-bit 'AVX256BW' tests from AVX2 checks 
Fixes SLP test issue with D56636

llvm-svn: 351199
 2019-01-15 16:13:37 +00:00
Simon Pilgrim c2aadfaaad [SLPVectorizer] Flag ADD/SUB SSAT/USAT intrinsics trivially vectorizable (PR40123) 
Enables SLP vectorization for the SSE2 PADDS/PADDUS/PSUBS/PSUBUS style intrinsics

llvm-svn: 350300
 2019-01-03 12:18:23 +00:00
Simon Pilgrim c5e22b29e4 [SLPVectorizer][X86] Add ADD/SUB SSAT/USAT tests (PR40123) 
llvm-svn: 350297
 2019-01-03 12:02:14 +00:00