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2 Commits

Author SHA1 Message Date
Sanjay Patel 7ae7a831b9 removed duplicate testcase 
llvm-svn: 212632
 2014-07-09 17:49:58 +00:00
Sanjay Patel 58814445d4 Fix for PR20059 (instcombine reorders shufflevector after instruction that may trap) 
In PR20059 ( http://llvm.org/pr20059 ), instcombine eliminates shuffles that are necessary before performing an operation that can trap (srem).

This patch calls isSafeToSpeculativelyExecute() and bails out of the optimization in SimplifyVectorOp() if needed.

Differential Revision: http://reviews.llvm.org/D4424

llvm-svn: 212629
 2014-07-09 16:34:54 +00:00