| ; RUN: opt < %s -jump-threading -mem2reg -instcombine -simplifycfg -S | FileCheck %s |
| |
| declare i32 @f1() |
| declare i32 @f2() |
| declare void @f3() |
| |
| define i32 @test(i1 %cond, i1 %cond2) { |
| ; CHECK: test |
| br i1 %cond, label %T1, label %F1 |
| |
| ; CHECK-NOT: T1 |
| T1: |
| %v1 = call i32 @f1() |
| br label %Merge |
| |
| F1: |
| %v2 = call i32 @f2() |
| br label %Merge |
| |
| Merge: |
| ; CHECK: Merge: |
| ; CHECK: %v1 = call i32 @f1() |
| ; CHECK-NEXT: br i1 %cond2 |
| %A = phi i1 [true, %T1], [false, %F1] |
| %B = phi i32 [%v1, %T1], [%v2, %F1] |
| %C = and i1 %A, %cond2 |
| br i1 %C, label %T2, label %F2 |
| |
| T2: |
| call void @f3() |
| ret i32 %B |
| |
| F2: |
| ret i32 %B |
| } |