1; Test that strcmp won't be converted to MVST if calls are 2; marked with nobuiltin, eg. for sanitizers. 3; 4; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 5 6declare ptr@strcpy(ptr %dest, ptr %src) 7declare ptr@stpcpy(ptr %dest, ptr %src) 8 9; Check strcpy. 10define ptr@f1(ptr %dest, ptr %src) { 11; CHECK-LABEL: f1: 12; CHECK-NOT: mvst 13; CHECK: brasl %r14, strcpy 14; CHECK: br %r14 15 %res = call ptr@strcpy(ptr %dest, ptr %src) nobuiltin 16 ret ptr %res 17} 18 19; Check stpcpy. 20define ptr@f2(ptr %dest, ptr %src) { 21; CHECK-LABEL: f2: 22; CHECK-NOT: mvst 23; CHECK: brasl %r14, stpcpy 24; CHECK: br %r14 25 %res = call ptr@stpcpy(ptr %dest, ptr %src) nobuiltin 26 ret ptr %res 27} 28 29; Check correct operation with other loads and stores. The load must 30; come before the loop and the store afterwards. 31define i32 @f3(i32 %dummy, ptr %dest, ptr %src, ptr %resptr, ptr %storeptr) { 32; CHECK-LABEL: f3: 33; CHECK-DAG: l [[REG1:%r[0-9]+]], 0(%r5) 34; CHECK-NOT: mvst 35; CHECK: brasl %r14, strcpy 36; CHECK: mvhi 0(%r6), 0 37; CHECK: br %r14 38 %res = load i32, ptr %resptr 39 %unused = call ptr@strcpy(ptr %dest, ptr %src) nobuiltin 40 store i32 0, ptr %storeptr 41 ret i32 %res 42} 43