1 files changed, 33 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb/2009-07-19-SPDecBug.ll b/test/CodeGen/Thumb/2009-07-19-SPDecBug.ll
new file mode 100644
index 0000000..471a82f
--- /dev/null
+++ b/test/CodeGen/Thumb/2009-07-19-SPDecBug.ll
@@ -0,0 +1,33 @@
+; RUN: llc < %s -mtriple=thumbv6-elf | not grep "subs sp"
+; PR4567
+
+define arm_apcscc i8* @__gets_chk(i8* %s, i32 %slen) nounwind {
+entry:
+	br i1 undef, label %bb, label %bb1
+
+bb:		; preds = %entry
+	ret i8* undef
+
+bb1:		; preds = %entry
+	br i1 undef, label %bb3, label %bb2
+
+bb2:		; preds = %bb1
+	%0 = alloca i8, i32 undef, align 4		; <i8*> [#uses=0]
+	br label %bb4
+
+bb3:		; preds = %bb1
+	%1 = malloc i8, i32 undef		; <i8*> [#uses=0]
+	br label %bb4
+
+bb4:		; preds = %bb3, %bb2
+	br i1 undef, label %bb5, label %bb6
+
+bb5:		; preds = %bb4
+	%2 = call arm_apcscc  i8* @gets(i8* %s) nounwind		; <i8*> [#uses=1]
+	ret i8* %2
+
+bb6:		; preds = %bb4
+	unreachable
+}
+
+declare arm_apcscc i8* @gets(i8*) nounwind