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| author | dim <dim@FreeBSD.org> | 2011-06-12 15:42:51 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2011-06-12 15:42:51 +0000 |
| commit | ece02cd5829cea836e9365b0845a8ef042d17b0a (patch) | |
| tree | b3032e51d630e8070e9e08d6641648f195316a80 /test/Transforms/SimplifyCFG/switch-masked-bits.ll | |
| parent | 2b066988909948dc3d53d01760bc2d71d32f3feb (diff) | |
| download | FreeBSD-src-ece02cd5829cea836e9365b0845a8ef042d17b0a.zip FreeBSD-src-ece02cd5829cea836e9365b0845a8ef042d17b0a.tar.gz | |
Vendor import of llvm trunk r132879:
http://llvm.org/svn/llvm-project/llvm/trunk@132879
Diffstat (limited to 'test/Transforms/SimplifyCFG/switch-masked-bits.ll')
| -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 0000000..fc83ec2 --- /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 +} |
