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Diffstat (limited to 'test/Transforms/Util/flattencfg.ll')
| -rw-r--r-- | test/Transforms/Util/flattencfg.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/Transforms/Util/flattencfg.ll b/test/Transforms/Util/flattencfg.ll new file mode 100644 index 0000000..4fcb77a --- /dev/null +++ b/test/Transforms/Util/flattencfg.ll @@ -0,0 +1,26 @@ +; 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 +} |