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23 lines
757 B
LLVM
23 lines
757 B
LLVM
; RUN: opt < %s -simplifycfg -S | FileCheck %s
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define float @clamp(float %a, float %b, float %c) {
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; CHECK-LABEL: @clamp
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; CHECK: %cmp = fcmp ogt float %a, %c
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; CHECK: %cmp1 = fcmp olt float %a, %b
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; CHECK: %cond = select i1 %cmp1, float %b, float %a
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; CHECK: %cond5 = select i1 %cmp, float %c, float %cond
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; CHECK: ret float %cond5
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entry:
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%cmp = fcmp ogt float %a, %c
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br i1 %cmp, label %cond.end4, label %cond.false
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cond.false: ; preds = %entry
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%cmp1 = fcmp olt float %a, %b
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%cond = select i1 %cmp1, float %b, float %a
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br label %cond.end4
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cond.end4: ; preds = %entry, %cond.false
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%cond5 = phi float [ %cond, %cond.false ], [ %c, %entry ]
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ret float %cond5
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}
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