a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
51 lines
1.2 KiB
LLVM
51 lines
1.2 KiB
LLVM
; Test strcpy using MVST.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare ptr@strcpy(ptr %dest, ptr %src)
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declare ptr@stpcpy(ptr %dest, ptr %src)
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; Check strcpy.
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define ptr@f1(ptr %dest, ptr %src) {
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; CHECK-LABEL: f1:
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; CHECK-DAG: lhi %r0, 0
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; CHECK-DAG: lgr [[REG:%r[145]]], %r2
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; CHECK: [[LABEL:\.[^:]*]]:
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; CHECK-NEXT: mvst [[REG]], %r3
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; CHECK-NEXT: jo [[LABEL]]
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; CHECK-NOT: %r2
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; CHECK: br %r14
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%res = call ptr@strcpy(ptr %dest, ptr %src)
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ret ptr %res
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}
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; Check stpcpy.
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define ptr@f2(ptr %dest, ptr %src) {
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; CHECK-LABEL: f2:
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; CHECK: lhi %r0, 0
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; CHECK: [[LABEL:\.[^:]*]]:
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; CHECK-NEXT: mvst %r2, %r3
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; CHECK-NEXT: jo [[LABEL]]
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; CHECK-NOT: %r2
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; CHECK: br %r14
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%res = call ptr@stpcpy(ptr %dest, ptr %src)
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ret ptr %res
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}
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; Check correct operation with other loads and stores. The load must
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; come before the loop and the store afterwards.
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define i32 @f3(i32 %dummy, ptr %dest, ptr %src, ptr %resptr, ptr %storeptr) {
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; CHECK-LABEL: f3:
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; CHECK-DAG: lhi %r0, 0
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; CHECK-DAG: l %r2, 0(%r5)
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; CHECK: [[LABEL:\.[^:]*]]:
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; CHECK-NEXT: mvst %r3, %r4
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; CHECK-NEXT: jo [[LABEL]]
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; CHECK: mvhi 0(%r6), 0
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; CHECK: br %r14
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%res = load i32, ptr %resptr
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%unused = call ptr@strcpy(ptr %dest, ptr %src)
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store i32 0, ptr %storeptr
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ret i32 %res
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}
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