1 ; Test memcpy using MVC.
3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
5 declare void @llvm.memcpy.p0i8.p0i8.i32(i8 *nocapture, i8 *nocapture, i32, i32, i1) nounwind
6 declare void @llvm.memcpy.p0i8.p0i8.i64(i8 *nocapture, i8 *nocapture, i64, i32, i1) nounwind
8 define void @f1(i8 *%dest, i8 *%src) {
13 call void @llvm.memcpy.p0i8.p0i8.i32(i8 *%dest, i8 *%src, i32 0, i32 1,
18 define void @f2(i8 *%dest, i8 *%src) {
23 call void @llvm.memcpy.p0i8.p0i8.i64(i8 *%dest, i8 *%src, i64 0, i32 1,
28 define void @f3(i8 *%dest, i8 *%src) {
30 ; CHECK: mvc 0(1,%r2), 0(%r3)
32 call void @llvm.memcpy.p0i8.p0i8.i32(i8 *%dest, i8 *%src, i32 1, i32 1,
37 define void @f4(i8 *%dest, i8 *%src) {
39 ; CHECK: mvc 0(1,%r2), 0(%r3)
41 call void @llvm.memcpy.p0i8.p0i8.i64(i8 *%dest, i8 *%src, i64 1, i32 1,
46 define void @f5(i8 *%dest, i8 *%src) {
48 ; CHECK: mvc 0(256,%r2), 0(%r3)
50 call void @llvm.memcpy.p0i8.p0i8.i32(i8 *%dest, i8 *%src, i32 256, i32 1,
55 define void @f6(i8 *%dest, i8 *%src) {
57 ; CHECK: mvc 0(256,%r2), 0(%r3)
59 call void @llvm.memcpy.p0i8.p0i8.i64(i8 *%dest, i8 *%src, i64 256, i32 1,
64 ; 257 bytes is too big for a single MVC. For now expect none, so that
65 ; the test fails and gets updated when large copies are implemented.
66 define void @f7(i8 *%dest, i8 *%src) {
70 call void @llvm.memcpy.p0i8.p0i8.i32(i8 *%dest, i8 *%src, i32 257, i32 1,
75 define void @f8(i8 *%dest, i8 *%src) {
79 call void @llvm.memcpy.p0i8.p0i8.i64(i8 *%dest, i8 *%src, i64 257, i32 1,