1*9880d681SAndroid Build Coastguard Worker; Test strcpy using MVST. 2*9880d681SAndroid Build Coastguard Worker; 3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Workerdeclare i8 *@strcpy(i8 *%dest, i8 *%src) 6*9880d681SAndroid Build Coastguard Workerdeclare i8 *@stpcpy(i8 *%dest, i8 *%src) 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Worker; Check strcpy. 9*9880d681SAndroid Build Coastguard Workerdefine i8 *@f1(i8 *%dest, i8 *%src) { 10*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1: 11*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: lhi %r0, 0 12*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: lgr [[REG:%r[145]]], %r2 13*9880d681SAndroid Build Coastguard Worker; CHECK: [[LABEL:\.[^:]*]]: 14*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: mvst [[REG]], %r3 15*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: jo [[LABEL]] 16*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: %r2 17*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 18*9880d681SAndroid Build Coastguard Worker %res = call i8 *@strcpy(i8 *%dest, i8 *%src) 19*9880d681SAndroid Build Coastguard Worker ret i8 *%res 20*9880d681SAndroid Build Coastguard Worker} 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Worker; Check stpcpy. 23*9880d681SAndroid Build Coastguard Workerdefine i8 *@f2(i8 *%dest, i8 *%src) { 24*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f2: 25*9880d681SAndroid Build Coastguard Worker; CHECK: lhi %r0, 0 26*9880d681SAndroid Build Coastguard Worker; CHECK: [[LABEL:\.[^:]*]]: 27*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: mvst %r2, %r3 28*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: jo [[LABEL]] 29*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: %r2 30*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 31*9880d681SAndroid Build Coastguard Worker %res = call i8 *@stpcpy(i8 *%dest, i8 *%src) 32*9880d681SAndroid Build Coastguard Worker ret i8 *%res 33*9880d681SAndroid Build Coastguard Worker} 34*9880d681SAndroid Build Coastguard Worker 35*9880d681SAndroid Build Coastguard Worker; Check correct operation with other loads and stores. The load must 36*9880d681SAndroid Build Coastguard Worker; come before the loop and the store afterwards. 37*9880d681SAndroid Build Coastguard Workerdefine i32 @f3(i32 %dummy, i8 *%dest, i8 *%src, i32 *%resptr, i32 *%storeptr) { 38*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f3: 39*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: lhi %r0, 0 40*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: l %r2, 0(%r5) 41*9880d681SAndroid Build Coastguard Worker; CHECK: [[LABEL:\.[^:]*]]: 42*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: mvst %r3, %r4 43*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: jo [[LABEL]] 44*9880d681SAndroid Build Coastguard Worker; CHECK: mvhi 0(%r6), 0 45*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 46*9880d681SAndroid Build Coastguard Worker %res = load i32 , i32 *%resptr 47*9880d681SAndroid Build Coastguard Worker %unused = call i8 *@strcpy(i8 *%dest, i8 *%src) 48*9880d681SAndroid Build Coastguard Worker store i32 0, i32 *%storeptr 49*9880d681SAndroid Build Coastguard Worker ret i32 %res 50*9880d681SAndroid Build Coastguard Worker} 51