[SystemZ] Add NC, OC and XC

For now these are just used to handle scalar ANDs, ORs and XORs in which
all operands are memory.

llvm-svn: 190041

1 files changed, 57 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/SystemZ/or-08.ll b/llvm/test/CodeGen/SystemZ/or-08.ll
new file mode 100644
index 00000000000..8f5bf3170be
--- /dev/null
+++ b/llvm/test/CodeGen/SystemZ/or-08.ll
@@ -0,0 +1,57 @@
+; Test memory-to-memory ORs.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+; Test the simple i8 case.
+define void @f1(i8 *%ptr1) {
+; CHECK-LABEL: f1:
+; CHECK: oc 1(1,%r2), 0(%r2)
+; CHECK: br %r14
+  %ptr2 = getelementptr i8 *%ptr1, i64 1
+  %val = load i8 *%ptr1
+  %old = load i8 *%ptr2
+  %or = or i8 %val, %old
+  store i8 %or, i8 *%ptr2
+  ret void
+}
+
+; Test the simple i16 case.
+define void @f2(i16 *%ptr1) {
+; CHECK-LABEL: f2:
+; CHECK: oc 2(2,%r2), 0(%r2)
+; CHECK: br %r14
+  %ptr2 = getelementptr i16 *%ptr1, i64 1
+  %val = load i16 *%ptr1
+  %old = load i16 *%ptr2
+  %or = or i16 %val, %old
+  store i16 %or, i16 *%ptr2
+  ret void
+}
+
+; Test the simple i32 case.
+define void @f3(i32 *%ptr1) {
+; CHECK-LABEL: f3:
+; CHECK: oc 4(4,%r2), 0(%r2)
+; CHECK: br %r14
+  %ptr2 = getelementptr i32 *%ptr1, i64 1
+  %val = load i32 *%ptr1
+  %old = load i32 *%ptr2
+  %or = or i32 %old, %val
+  store i32 %or, i32 *%ptr2
+  ret void
+}
+
+; Test the i64 case.
+define void @f4(i64 *%ptr1) {
+; CHECK-LABEL: f4:
+; CHECK: oc 8(8,%r2), 0(%r2)
+; CHECK: br %r14
+  %ptr2 = getelementptr i64 *%ptr1, i64 1
+  %val = load i64 *%ptr1
+  %old = load i64 *%ptr2
+  %or = or i64 %old, %val
+  store i64 %or, i64 *%ptr2
+  ret void
+}
+
+; Leave other more complicated tests to and-08.ll.