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8 Commits

Author SHA1 Message Date
Sanjay Patel 9eec550a2b add vector tests and a simpler version of the negative tests 
llvm-svn: 276328
 2016-07-21 20:11:08 +00:00
Sanjay Patel 5f3c70307d [InstSimplify][InstCombine] don't crash when folding vector selects of icmp 
Differential Revision: https://reviews.llvm.org/D22602

llvm-svn: 276209
 2016-07-20 23:40:01 +00:00
Sanjay Patel 47c04f9543 add even more missing tests for simplifySelectBitTest() 
llvm-svn: 276024
 2016-07-19 20:47:00 +00:00
Sanjay Patel 8b76ebe5b8 add tests related to PR28466 
llvm-svn: 275995
 2016-07-19 17:07:35 +00:00
Sanjay Patel d2ff6d727f add missing test for simplifySelectBitTest() 
llvm-svn: 275990
 2016-07-19 16:49:55 +00:00
Sanjay Patel 8a2bf3099f auto-generate checks 
llvm-svn: 275899
 2016-07-18 20:06:51 +00:00
David Majnemer 0b6a0b0257 InstSimplify: Optimize away pointless comparisons 
(X & INT_MIN) ? X & INT_MAX : X  into  X & INT_MAX
(X & INT_MIN) ? X : X & INT_MAX  into  X
(X & INT_MIN) ? X | INT_MIN : X  into  X
(X & INT_MIN) ? X : X | INT_MIN  into  X | INT_MIN

llvm-svn: 224669
 2014-12-20 03:04:38 +00:00
David Majnemer c6a5e1dd4f InstSimplify: Restore optimizations lost in r210006 
This restores our ability to optimize:
(X & C) ? X & ~C : X  into  X & ~C
(X & C) ? X : X & ~C  into  X
(X & C) ? X | C : X  into  X
(X & C) ? X : X | C  into  X | C

llvm-svn: 222868
 2014-11-27 06:32:46 +00:00