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Diffstat (limited to 'test/CodeGen/X86/2006-10-19-SwitchUnnecessaryBranching.ll')
| -rw-r--r-- | test/CodeGen/X86/2006-10-19-SwitchUnnecessaryBranching.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2006-10-19-SwitchUnnecessaryBranching.ll b/test/CodeGen/X86/2006-10-19-SwitchUnnecessaryBranching.ll new file mode 100644 index 0000000..88e8b4a --- /dev/null +++ b/test/CodeGen/X86/2006-10-19-SwitchUnnecessaryBranching.ll @@ -0,0 +1,29 @@ +; RUN: llc < %s -march=x86 -asm-verbose | FileCheck %s + +@str = internal constant [14 x i8] c"Hello world!\0A\00" ; <[14 x i8]*> [#uses=1] +@str.upgrd.1 = internal constant [13 x i8] c"Blah world!\0A\00" ; <[13 x i8]*> [#uses=1] + +define i32 @test(i32 %argc, i8** %argv) nounwind { +entry: +; CHECK: cmpl $2 +; CHECK-NEXT: je +; CHECK-NEXT: %entry + + switch i32 %argc, label %UnifiedReturnBlock [ + i32 1, label %bb + i32 2, label %bb2 + ] + +bb: ; preds = %entry + %tmp1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([14 x i8]* @str, i32 0, i64 0) ) ; <i32> [#uses=0] + ret i32 0 + +bb2: ; preds = %entry + %tmp4 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([13 x i8]* @str.upgrd.1, i32 0, i64 0) ) ; <i32> [#uses=0] + ret i32 0 + +UnifiedReturnBlock: ; preds = %entry + ret i32 0 +} + +declare i32 @printf(i8*, ...) |