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Diffstat (limited to 'test/Transforms/InstCombine/deadcode.ll')
| -rw-r--r-- | test/Transforms/InstCombine/deadcode.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/deadcode.ll b/test/Transforms/InstCombine/deadcode.ll new file mode 100644 index 000000000000..43c179315548 --- /dev/null +++ b/test/Transforms/InstCombine/deadcode.ll @@ -0,0 +1,24 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {ret i32 %A} +; RUN: llvm-as < %s | opt -die | llvm-dis | not grep call.*llvm.stacksave + +define i32 @test(i32 %A) { + %X = or i1 false, false + br i1 %X, label %T, label %C + +T: ; preds = %0 + %B = add i32 %A, 1 + br label %C + +C: ; preds = %T, %0 + %C.upgrd.1 = phi i32 [ %B, %T ], [ %A, %0 ] + ret i32 %C.upgrd.1 +} + +define i32* @test2(i32 %width) { + %tmp = call i8* @llvm.stacksave( ) + %tmp14 = alloca i32, i32 %width + ret i32* %tmp14 +} + +declare i8* @llvm.stacksave() + |