1 ; RUN: opt -flattencfg -S < %s | FileCheck %s
4 ; This test checks whether the pass completes without a crash.
5 ; The code is not transformed in any way
7 ; CHECK-LABEL: @test_not_crash
8 define void @test_not_crash(i32 %in_a) #0 {
10 %cmp0 = icmp eq i32 %in_a, -1
11 %cmp1 = icmp ne i32 %in_a, 0
12 %cond0 = and i1 %cmp0, %cmp1
13 br i1 %cond0, label %b0, label %b1
16 %cmp2 = icmp eq i32 %in_a, 0
17 %cmp3 = icmp ne i32 %in_a, 1
18 %cond1 = or i1 %cmp2, %cmp3
19 br i1 %cond1, label %exit, label %b1
21 b1: ; preds = %entry, %b0
24 exit: ; preds = %entry, %b0, %b1