Testcase for P926

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31058 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/2006-10-19-SwitchUnnecessaryBranching.ll b/test/CodeGen/X86/2006-10-19-SwitchUnnecessaryBranching.ll
new file mode 100644 (file)
index 0000000..4c1a946
--- /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*, ...)