Add a missing testcase


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26834 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/PowerPC/neg.ll b/test/CodeGen/PowerPC/neg.ll
new file mode 100644
index 0000000..59e14db
--- /dev/null
+++ b/test/CodeGen/PowerPC/neg.ll
@@ -0,0 +1,6 @@
+; RUN: llvm-as < %s | llc -march=ppc32 | grep neg
+
+int %test(int %X) {
+    %Y = sub int 0, %X
+	ret int %Y
+}