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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
Max Kazantsev f8d2969abb [SCEV] Smart range calculation for SCEVUnknown Phis 
The range of SCEVUnknown Phi which merges values `X1, X2, ..., XN`
can be evaluated as `U(Range(X1), Range(X2), ..., Range(XN))`.

Reviewed By: sanjoy
Differential Revision: https://reviews.llvm.org/D43810

llvm-svn: 326418
 2018-03-01 06:56:48 +00:00
Hal Finkel 92ea8acbcd Move Transforms/LoopVectorize/consecutive-ptr-cg-bug.ll into the X86 subdirectory 
This test depends on X86's TTI; move into the X86 subdirectory.

llvm-svn: 320914
 2017-12-16 05:10:20 +00:00