Add a testcase for nate's patch

llvm-svn: 23172

1 files changed, 12 insertions, 0 deletions

diff --git a/llvm/test/Regression/CodeGen/PowerPC/small-arguments.ll b/llvm/test/Regression/CodeGen/PowerPC/small-arguments.ll
new file mode 100644
index 00000000000..9195d0f2677
--- /dev/null
+++ b/llvm/test/Regression/CodeGen/PowerPC/small-arguments.ll
@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | llc -march=ppc32 | not grep 'extsh\|rlwinm r3, r3'
+
+int %test1(short %X) {
+	%Y = cast short %X to int  ;; dead
+	ret int %Y
+}
+
+int %test2(ushort %X) {
+	%Y = cast ushort %X to int
+	%Z = and int %Y, 65535      ;; dead
+	ret int %Z
+}