| ; RUN: opt -flattencfg -S < %s | FileCheck %s |
| |
| |
| ; This test checks whether the pass completes without a crash. |
| ; The code is not transformed in any way |
| ; |
| ; CHECK-LABEL: @test_not_crash |
| define void @test_not_crash(i32 %in_a) #0 { |
| entry: |
| %cmp0 = icmp eq i32 %in_a, -1 |
| %cmp1 = icmp ne i32 %in_a, 0 |
| %cond0 = and i1 %cmp0, %cmp1 |
| br i1 %cond0, label %b0, label %b1 |
| |
| b0: ; preds = %entry |
| %cmp2 = icmp eq i32 %in_a, 0 |
| %cmp3 = icmp ne i32 %in_a, 1 |
| %cond1 = or i1 %cmp2, %cmp3 |
| br i1 %cond1, label %exit, label %b1 |
| |
| b1: ; preds = %entry, %b0 |
| br label %exit |
| |
| exit: ; preds = %entry, %b0, %b1 |
| ret void |
| } |
