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Davide Italiano fff81b23a8 [PM] Port LoopSimplify to the new pass manager.

While here move simplifyLoop() function to the new header, as
suggested by Chandler in the review.

Differential Revision:  http://reviews.llvm.org/D21404

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274959 91177308-0d34-0410-b5e6-96231b3b80d8

2016-07-09 03:03:01 +00:00

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 ; RUN: opt < %s -loop-simplify
 ; RUN: opt < %s -passes=loop-simplify
 ; This function should get a preheader inserted before BB3, that is jumped
 ; to by BB1 & BB2
 ;
 define void @test() {
 	br i1 true, label %BB1, label %BB2
 BB1:		; preds = %0
 	br label %BB3
 BB2:		; preds = %0
 	br label %BB3
 BB3:		; preds = %BB3, %BB2, %BB1
 	br label %BB3
 }