new testcase for PR964

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31117 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 27 insertions, 0 deletions

diff --git a/test/CodeGen/Generic/SwitchLowering.ll b/test/CodeGen/Generic/SwitchLowering.ll
new file mode 100644
index 0000000000..136bdb494b
--- /dev/null
+++ b/test/CodeGen/Generic/SwitchLowering.ll
@@ -0,0 +1,27 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep cmp | wc -l | grep 1
+; PR964
+
+sbyte* %FindChar(sbyte* %CurPtr) {
+entry:
+	br label %bb
+
+bb:		; preds = %bb, %entry
+	%indvar = phi uint [ 0, %entry ], [ %indvar.next, %bb ]		; <uint> [#uses=3]
+	%CurPtr_addr.0.rec = cast uint %indvar to int		; <int> [#uses=1]
+	%CurPtr_addr.0 = getelementptr sbyte* %CurPtr, uint %indvar		; <sbyte*> [#uses=1]
+	%tmp = load sbyte* %CurPtr_addr.0		; <sbyte> [#uses=2]
+	%tmp2.rec = add int %CurPtr_addr.0.rec, 1		; <int> [#uses=1]
+	%tmp2 = getelementptr sbyte* %CurPtr, int %tmp2.rec		; <sbyte*> [#uses=1]
+	%indvar.next = add uint %indvar, 1		; <uint> [#uses=1]
+	switch sbyte %tmp, label %bb [
+		 sbyte 0, label %bb7
+		 sbyte 120, label %bb7
+	]
+
+bb7:		; preds = %bb, %bb
+	%tmp = cast sbyte %tmp to ubyte		; <ubyte> [#uses=1]
+	tail call void %foo( ubyte %tmp )
+	ret sbyte* %tmp2
+}
+
+declare void %foo(ubyte)