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11 Commits

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
Craig Topper 65dd32afbc [InstCombine] Teach the code that pulls logical operators through constant shifts to handle vector splats too. 
llvm-svn: 310185
 2017-08-05 20:00:42 +00:00
Sanjay Patel 3e1ae72fcf [InstCombine] allow shl demanded bits folds with splat constants 
More fixes are needed to enable the helper SimplifyShrShlDemandedBits().

llvm-svn: 300898
 2017-04-20 21:33:02 +00:00
Sanjay Patel 5f8451afad [InstCombine] use m_APInt to allow ashr folds for vectors with splat constants 
llvm-svn: 292064
 2017-01-15 16:38:19 +00:00
Sanjay Patel 58109abe91 [InstCombine] use m_APInt to allow icmp ult X, C folds for splat constant vectors 
llvm-svn: 281107
 2016-09-09 21:59:37 +00:00
Sanjay Patel 9b40f98357 [InstCombine] use m_APInt to allow icmp (and (sh X, Y), C2), C1 folds for splat constant vectors 
llvm-svn: 280873
 2016-09-07 22:33:03 +00:00
Sanjay Patel d391b0d69e [InstCombine] add tests for missing vector icmp folds 
llvm-svn: 278704
 2016-08-15 18:26:56 +00:00
Sanjay Patel 66a3457a4c [InstCombine] add test for missing vector icmp fold 
llvm-svn: 278630
 2016-08-14 20:39:42 +00:00
Sanjay Patel 52958dc111 auto-generate checks 
llvm-svn: 278135
 2016-08-09 16:59:54 +00:00
Kay Tiong Khoo 5389f74655 Conservative fix for PR17827 - don't optimize a shift + and + compare sequence where the shift is logical unless the comparison is unsigned 
llvm-svn: 196129
 2013-12-02 18:43:59 +00:00