| ; RUN: opt < %s -simplifycfg -S | FileCheck %s |
| |
| ; int foo1_with_default(int a) { |
| ; switch(a) { |
| ; case 10: |
| ; return 10; |
| ; case 20: |
| ; return 2; |
| ; } |
| ; return 4; |
| ; } |
| |
| define i32 @foo1_with_default(i32 %a) { |
| ; CHECK-LABEL: @foo1_with_default |
| ; CHECK: %switch.selectcmp = icmp eq i32 %a, 20 |
| ; CHECK-NEXT: %switch.select = select i1 %switch.selectcmp, i32 2, i32 4 |
| ; CHECK-NEXT: %switch.selectcmp1 = icmp eq i32 %a, 10 |
| ; CHECK-NEXT: %switch.select2 = select i1 %switch.selectcmp1, i32 10, i32 %switch.select |
| entry: |
| switch i32 %a, label %sw.epilog [ |
| i32 10, label %sw.bb |
| i32 20, label %sw.bb1 |
| ] |
| |
| sw.bb: |
| br label %return |
| |
| sw.bb1: |
| br label %return |
| |
| sw.epilog: |
| br label %return |
| |
| return: |
| %retval.0 = phi i32 [ 4, %sw.epilog ], [ 2, %sw.bb1 ], [ 10, %sw.bb ] |
| ret i32 %retval.0 |
| } |