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1; Test strcpy using MVST.2;3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s4 5declare ptr@strcpy(ptr %dest, ptr %src)6declare ptr@stpcpy(ptr %dest, ptr %src)7 8; Check strcpy.9define ptr@f1(ptr %dest, ptr %src) {10; CHECK-LABEL: f1:11; CHECK-DAG: lhi %r0, 012; CHECK-DAG: lgr [[REG:%r[145]]], %r213; CHECK: [[LABEL:\.[^:]*]]:14; CHECK-NEXT: mvst [[REG]], %r315; CHECK-NEXT: jo [[LABEL]]16; CHECK-NOT: %r217; CHECK: br %r1418 %res = call ptr@strcpy(ptr %dest, ptr %src)19 ret ptr %res20}21 22; Check stpcpy.23define ptr@f2(ptr %dest, ptr %src) {24; CHECK-LABEL: f2:25; CHECK: lhi %r0, 026; CHECK: [[LABEL:\.[^:]*]]:27; CHECK-NEXT: mvst %r2, %r328; CHECK-NEXT: jo [[LABEL]]29; CHECK-NOT: %r230; CHECK: br %r1431 %res = call ptr@stpcpy(ptr %dest, ptr %src)32 ret ptr %res33}34 35; Check correct operation with other loads and stores. The load must36; come before the loop and the store afterwards.37define i32 @f3(i32 %dummy, ptr %dest, ptr %src, ptr %resptr, ptr %storeptr) {38; CHECK-LABEL: f3:39; CHECK-DAG: lhi %r0, 040; CHECK-DAG: l %r2, 0(%r5)41; CHECK: [[LABEL:\.[^:]*]]:42; CHECK-NEXT: mvst %r3, %r443; CHECK-NEXT: jo [[LABEL]]44; CHECK: mvhi 0(%r6), 045; CHECK: br %r1446 %res = load i32, ptr %resptr47 %unused = call ptr@strcpy(ptr %dest, ptr %src)48 store i32 0, ptr %storeptr49 ret i32 %res50}51