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[SimplifyCFG] Add test for r229099

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Add extra test that was accidentally not staged.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229101 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
James Molloy 2015-02-13 11:08:40 +00:00
parent c76bff0715
commit acbbf932e9
1 changed files with 22 additions and 0 deletions
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22
test/Transforms/SimplifyCFG/clamp.ll Normal file
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; RUN: opt < %s -simplifycfg -S | FileCheck %s
define float @clamp(float %a, float %b, float %c) {
; CHECK-LABEL: @clamp
; CHECK: %cmp = fcmp ogt float %a, %c
; CHECK: %cmp1 = fcmp olt float %a, %b
; CHECK: %cond = select i1 %cmp1, float %b, float %a
; CHECK: %cond5 = select i1 %cmp, float %c, float %cond
; CHECK: ret float %cond5
entry:
%cmp = fcmp ogt float %a, %c
br i1 %cmp, label %cond.end4, label %cond.false
cond.false: ; preds = %entry
%cmp1 = fcmp olt float %a, %b
%cond = select i1 %cmp1, float %b, float %a
br label %cond.end4
cond.end4: ; preds = %entry, %cond.false
%cond5 = phi float [ %cond, %cond.false ], [ %c, %entry ]
ret float %cond5
}