forked from OSchip/llvm-project
23 lines
801 B
LLVM
23 lines
801 B
LLVM
; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -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
|
|
}
|