--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/SystemZ/or-06.ll	Thu Dec 12 13:56:28 2013 +0900
@@ -0,0 +1,108 @@
+; Test that we can use OI for byte operations that are expressed as i32
+; or i64 operations.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+; Zero extension to 32 bits, negative constant.
+define void @f1(i8 *%ptr) {
+; CHECK-LABEL: f1:
+; CHECK: oi 0(%r2), 254
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %ext = zext i8 %val to i32
+  %or = or i32 %ext, -2
+  %trunc = trunc i32 %or to i8
+  store i8 %trunc, i8 *%ptr
+  ret void
+}
+
+; Zero extension to 64 bits, negative constant.
+define void @f2(i8 *%ptr) {
+; CHECK-LABEL: f2:
+; CHECK: oi 0(%r2), 254
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %ext = zext i8 %val to i64
+  %or = or i64 %ext, -2
+  %trunc = trunc i64 %or to i8
+  store i8 %trunc, i8 *%ptr
+  ret void
+}
+
+; Zero extension to 32 bits, positive constant.
+define void @f3(i8 *%ptr) {
+; CHECK-LABEL: f3:
+; CHECK: oi 0(%r2), 254
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %ext = zext i8 %val to i32
+  %or = or i32 %ext, 254
+  %trunc = trunc i32 %or to i8
+  store i8 %trunc, i8 *%ptr
+  ret void
+}
+
+; Zero extension to 64 bits, positive constant.
+define void @f4(i8 *%ptr) {
+; CHECK-LABEL: f4:
+; CHECK: oi 0(%r2), 254
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %ext = zext i8 %val to i64
+  %or = or i64 %ext, 254
+  %trunc = trunc i64 %or to i8
+  store i8 %trunc, i8 *%ptr
+  ret void
+}
+
+; Sign extension to 32 bits, negative constant.
+define void @f5(i8 *%ptr) {
+; CHECK-LABEL: f5:
+; CHECK: oi 0(%r2), 254
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %ext = sext i8 %val to i32
+  %or = or i32 %ext, -2
+  %trunc = trunc i32 %or to i8
+  store i8 %trunc, i8 *%ptr
+  ret void
+}
+
+; Sign extension to 64 bits, negative constant.
+define void @f6(i8 *%ptr) {
+; CHECK-LABEL: f6:
+; CHECK: oi 0(%r2), 254
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %ext = sext i8 %val to i64
+  %or = or i64 %ext, -2
+  %trunc = trunc i64 %or to i8
+  store i8 %trunc, i8 *%ptr
+  ret void
+}
+
+; Sign extension to 32 bits, positive constant.
+define void @f7(i8 *%ptr) {
+; CHECK-LABEL: f7:
+; CHECK: oi 0(%r2), 254
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %ext = sext i8 %val to i32
+  %or = or i32 %ext, 254
+  %trunc = trunc i32 %or to i8
+  store i8 %trunc, i8 *%ptr
+  ret void
+}
+
+; Sign extension to 64 bits, positive constant.
+define void @f8(i8 *%ptr) {
+; CHECK-LABEL: f8:
+; CHECK: oi 0(%r2), 254
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %ext = sext i8 %val to i64
+  %or = or i64 %ext, 254
+  %trunc = trunc i64 %or to i8
+  store i8 %trunc, i8 *%ptr
+  ret void
+}