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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 356e823b51 [X86][SSE] Add cost model for BSWAP of vectors 
The BSWAP of vector types is quite efficiently implemented using vector shuffles on SSE/AVX targets, we should reflect the typical cost of this to encourage vectorization.

Differential Revision: http://reviews.llvm.org/D21521

llvm-svn: 273217
 2016-06-20 23:08:21 +00:00
Simon Pilgrim 2def0a878a [SLPVectorizer][X86] Added BSWAP/BITREVERSE vectorization tests 
llvm-svn: 268803
 2016-05-06 21:41:55 +00:00