diff options
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/SimplifyCFG/switch-masked-bits.ll | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyCFG/switch-masked-bits.ll b/test/Transforms/SimplifyCFG/switch-masked-bits.ll new file mode 100644 index 0000000000..fc83ec2078 --- /dev/null +++ b/test/Transforms/SimplifyCFG/switch-masked-bits.ll @@ -0,0 +1,38 @@ +; RUN: opt -S -simplifycfg < %s | FileCheck %s + +define i32 @test1(i32 %x) nounwind { + %i = shl i32 %x, 1 + switch i32 %i, label %a [ + i32 21, label %b + i32 24, label %c + ] + +a: + ret i32 0 +b: + ret i32 3 +c: + ret i32 5 +; CHECK: @test1 +; CHECK: %cond = icmp eq i32 %i, 24 +; CHECK: %merge = select i1 %cond, i32 5, i32 0 +; CHECK: ret i32 %merge +} + + +define i32 @test2(i32 %x) nounwind { + %i = shl i32 %x, 1 + switch i32 %i, label %a [ + i32 21, label %b + i32 23, label %c + ] + +a: + ret i32 0 +b: + ret i32 3 +c: + ret i32 5 +; CHECK: @test2 +; CHECK: ret i32 0 +} |