| ; RUN: llvm-as < %s | opt -condprop | llvm-dis | not grep phi |
| |
| declare bool %foo() |
| |
| int %test(uint %C) { |
| %Val = call bool %foo() |
| switch uint %C, label %T1 [ |
| uint 4, label %T2 |
| uint 17, label %T3 |
| ] |
| T1: |
| call void %a() |
| br label %Cont |
| T2: |
| call void %b() |
| br label %Cont |
| T3: |
| call void %c() |
| br label %Cont |
| |
| Cont: |
| ;; PHI becomes dead after threading T2 |
| %C2 = phi bool [%Val, %T1], [true, %T2], [%Val, %T3] |
| br bool %C2, label %L2, label %F2 |
| L2: |
| call void %d() |
| ret int 17 |
| F2: |
| call void %e() |
| ret int 1 |
| } |
| declare void %a() |
| declare void %b() |
| declare void %c() |
| declare void %d() |
| declare void %e() |
