1 files changed, 66 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/SystemZ/or-02.ll b/llvm/test/CodeGen/SystemZ/or-02.ll
new file mode 100644
index 00000000000..377a3e604c6
--- /dev/null
+++ b/llvm/test/CodeGen/SystemZ/or-02.ll
@@ -0,0 +1,66 @@
+; Test 32-bit ORs in which the second operand is constant.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+; Check the lowest useful OILL value.
+define i32 @f1(i32 %a) {
+; CHECK: f1:
+; CHECK: oill %r2, 1
+; CHECK: br %r14
+  %or = or i32 %a, 1
+  ret i32 %or
+}
+
+; Check the high end of the OILL range.
+define i32 @f2(i32 %a) {
+; CHECK: f2:
+; CHECK: oill %r2, 65535
+; CHECK: br %r14
+  %or = or i32 %a, 65535
+  ret i32 %or
+}
+
+; Check the lowest useful OILH range, which is the next value up.
+define i32 @f3(i32 %a) {
+; CHECK: f3:
+; CHECK: oilh %r2, 1
+; CHECK: br %r14
+  %or = or i32 %a, 65536
+  ret i32 %or
+}
+
+; Check the lowest useful OILF value, which is the next value up again.
+define i32 @f4(i32 %a) {
+; CHECK: f4:
+; CHECK: oilf %r2, 65537
+; CHECK: br %r14
+  %or = or i32 %a, 65537
+  ret i32 %or
+}
+
+; Check the high end of the OILH range.
+define i32 @f5(i32 %a) {
+; CHECK: f5:
+; CHECK: oilh %r2, 65535
+; CHECK: br %r14
+  %or = or i32 %a, -65536
+  ret i32 %or
+}
+
+; Check the next value up, which must use OILF instead.
+define i32 @f6(i32 %a) {
+; CHECK: f6:
+; CHECK: oilf %r2, 4294901761
+; CHECK: br %r14
+  %or = or i32 %a, -65535
+  ret i32 %or
+}
+
+; Check the highest useful OILF value.
+define i32 @f7(i32 %a) {
+; CHECK: f7:
+; CHECK: oilf %r2, 4294967294
+; CHECK: br %r14
+  %or = or i32 %a, -2
+  ret i32 %or
+}