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| -rw-r--r-- | test/CodeGen/X86/2006-10-19-SwitchUnnecessaryBranching.ll | 27 |
1 files changed, 27 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 0000000000..4c1a94623e --- /dev/null +++ b/test/CodeGen/X86/2006-10-19-SwitchUnnecessaryBranching.ll @@ -0,0 +1,27 @@ +; RUN: llvm-as < %s | llc -march=x86 | %prcontext "jg LBB1_5" 1 | grep "LBB1_4:" + +%str = internal constant [14 x sbyte] c"Hello world!\0A\00" ; <[14 x sbyte]*> [#uses=1] +%str = internal constant [13 x sbyte] c"Blah world!\0A\00" ; <[13 x sbyte]*> [#uses=1] + +implementation ; Functions: + +int %main(int %argc, sbyte** %argv) { +entry: + switch int %argc, label %UnifiedReturnBlock [ + int 1, label %bb + int 2, label %bb2 + ] + +bb: ; preds = %entry + %tmp1 = tail call int (sbyte*, ...)* %printf( sbyte* getelementptr ([14 x sbyte]* %str, int 0, uint 0) ) ; <int> [#uses=0] + ret int 0 + +bb2: ; preds = %entry + %tmp4 = tail call int (sbyte*, ...)* %printf( sbyte* getelementptr ([13 x sbyte]* %str, int 0, uint 0) ) ; <int> [#uses=0] + ret int 0 + +UnifiedReturnBlock: ; preds = %entry + ret int 0 +} + +declare int %printf(sbyte*, ...) |