diff --git a/test/CodeGen/PowerPC/compare-simm.ll b/test/CodeGen/PowerPC/compare-simm.ll
new file mode 100644
index 0000000..7a73cd1
--- /dev/null
+++ b/test/CodeGen/PowerPC/compare-simm.ll
@@ -0,0 +1,13 @@
+; RUN: llvm-as < %s | llc -march=ppc32 | grep 'cmpwi cr0, r3, -1'
+
+define i32 @test(i32 %x) {
+        %c = icmp eq i32 %x, -1
+	br i1 %c, label %T, label %F
+T:
+	%A = call i32 @test(i32 123)
+	%B = add i32 %A, 43
+	ret i32 %B
+F:
+	%G = add i32 %x, 1234
+	ret i32 %G
+}