| ; RUN: opt < %s -passes=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 |
| } |