1 files changed, 128 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/int-add-11.ll b/test/CodeGen/SystemZ/int-add-11.ll
new file mode 100644
index 0000000000000..47a776ecf6ece
--- /dev/null
+++ b/test/CodeGen/SystemZ/int-add-11.ll
@@ -0,0 +1,128 @@
+; Test 32-bit additions of constants to memory.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+; Check additions of 1.
+define void @f1(i32 *%ptr) {
+; CHECK: f1:
+; CHECK: asi 0(%r2), 1
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %add = add i32 %val, 127
+  store i32 %add, i32 *%ptr
+  ret void
+}
+
+; Check the high end of the constant range.
+define void @f2(i32 *%ptr) {
+; CHECK: f2:
+; CHECK: asi 0(%r2), 127
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %add = add i32 %val, 127
+  store i32 %add, i32 *%ptr
+  ret void
+}
+
+; Check the next constant up, which must use an addition and a store.
+; Both L/AHI and LHI/A would be OK.
+define void @f3(i32 *%ptr) {
+; CHECK: f3:
+; CHECK-NOT: asi
+; CHECK: st %r0, 0(%r2)
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %add = add i32 %val, 128
+  store i32 %add, i32 *%ptr
+  ret void
+}
+
+; Check the low end of the constant range.
+define void @f4(i32 *%ptr) {
+; CHECK: f4:
+; CHECK: asi 0(%r2), -128
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %add = add i32 %val, -128
+  store i32 %add, i32 *%ptr
+  ret void
+}
+
+; Check the next value down, with the same comment as f3.
+define void @f5(i32 *%ptr) {
+; CHECK: f5:
+; CHECK-NOT: asi
+; CHECK: st %r0, 0(%r2)
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %add = add i32 %val, -129
+  store i32 %add, i32 *%ptr
+  ret void
+}
+
+; Check the high end of the aligned ASI range.
+define void @f6(i32 *%base) {
+; CHECK: f6:
+; CHECK: asi 524284(%r2), 1
+; CHECK: br %r14
+  %ptr = getelementptr i32 *%base, i64 131071
+  %val = load i32 *%ptr
+  %add = add i32 %val, 1
+  store i32 %add, i32 *%ptr
+  ret void
+}
+
+; Check the next word up, which must use separate address logic.
+; Other sequences besides this one would be OK.
+define void @f7(i32 *%base) {
+; CHECK: f7:
+; CHECK: agfi %r2, 524288
+; CHECK: asi 0(%r2), 1
+; CHECK: br %r14
+  %ptr = getelementptr i32 *%base, i64 131072
+  %val = load i32 *%ptr
+  %add = add i32 %val, 1
+  store i32 %add, i32 *%ptr
+  ret void
+}
+
+; Check the low end of the ASI range.
+define void @f8(i32 *%base) {
+; CHECK: f8:
+; CHECK: asi -524288(%r2), 1
+; CHECK: br %r14
+  %ptr = getelementptr i32 *%base, i64 -131072
+  %val = load i32 *%ptr
+  %add = add i32 %val, 1
+  store i32 %add, i32 *%ptr
+  ret void
+}
+
+; Check the next word down, which must use separate address logic.
+; Other sequences besides this one would be OK.
+define void @f9(i32 *%base) {
+; CHECK: f9:
+; CHECK: agfi %r2, -524292
+; CHECK: asi 0(%r2), 1
+; CHECK: br %r14
+  %ptr = getelementptr i32 *%base, i64 -131073
+  %val = load i32 *%ptr
+  %add = add i32 %val, 1
+  store i32 %add, i32 *%ptr
+  ret void
+}
+
+; Check that ASI does not allow indices.
+define void @f10(i64 %base, i64 %index) {
+; CHECK: f10:
+; CHECK: agr %r2, %r3
+; CHECK: asi 4(%r2), 1
+; CHECK: br %r14
+  %add1 = add i64 %base, %index
+  %add2 = add i64 %add1, 4
+  %ptr = inttoptr i64 %add2 to i32 *
+  %val = load i32 *%ptr
+  %add = add i32 %val, 1
+  store i32 %add, i32 *%ptr
+  ret void
+}