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Do not simplifyLatch for loops where hoisting increments couldresult in extra live range interferance

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220872 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Yi Jiang
2014-10-29 20:19:47 +00:00
parent 3262c451c4
commit a5ca5d9f82
3 changed files with 34 additions and 7 deletions
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2
test/Transforms/LoopRotate/simplifylatch.ll
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@@ -4,7 +4,7 @@
@mode_table = global [4 x i32] zeroinitializer ; <[4 x i32]*> [#uses=1]
; CHECK-LABEL: @f(
; CHECK-NOT: bb4
; CHECK-NOT: bb:
define i8 @f() {
entry:
tail call i32 @fegetround( ) ; <i32>:0 [#uses=1]