mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-27 13:30:05 +00:00
4fc7355a21
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188546 91177308-0d34-0410-b5e6-96231b3b80d8
51 lines
1.3 KiB
LLVM
51 lines
1.3 KiB
LLVM
; Test strcpy using MVST.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
declare i8 *@strcpy(i8 *%dest, i8 *%src)
|
|
declare i8 *@stpcpy(i8 *%dest, i8 *%src)
|
|
|
|
; Check strcpy.
|
|
define i8 *@f1(i8 *%dest, i8 *%src) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK-DAG: lhi %r0, 0
|
|
; CHECK-DAG: lgr [[REG:%r[145]]], %r2
|
|
; CHECK: [[LABEL:\.[^:]*]]:
|
|
; CHECK-NEXT: mvst [[REG]], %r3
|
|
; CHECK-NEXT: jo [[LABEL]]
|
|
; CHECK-NOT: %r2
|
|
; CHECK: br %r14
|
|
%res = call i8 *@strcpy(i8 *%dest, i8 *%src)
|
|
ret i8 *%res
|
|
}
|
|
|
|
; Check stpcpy.
|
|
define i8 *@f2(i8 *%dest, i8 *%src) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: lhi %r0, 0
|
|
; CHECK: [[LABEL:\.[^:]*]]:
|
|
; CHECK-NEXT: mvst %r2, %r3
|
|
; CHECK-NEXT: jo [[LABEL]]
|
|
; CHECK-NOT: %r2
|
|
; CHECK: br %r14
|
|
%res = call i8 *@stpcpy(i8 *%dest, i8 *%src)
|
|
ret i8 *%res
|
|
}
|
|
|
|
; Check correct operation with other loads and stores. The load must
|
|
; come before the loop and the store afterwards.
|
|
define i32 @f3(i32 %dummy, i8 *%dest, i8 *%src, i32 *%resptr, i32 *%storeptr) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK-DAG: lhi %r0, 0
|
|
; CHECK-DAG: l %r2, 0(%r5)
|
|
; CHECK: [[LABEL:\.[^:]*]]:
|
|
; CHECK-NEXT: mvst %r3, %r4
|
|
; CHECK-NEXT: jo [[LABEL]]
|
|
; CHECK: mvhi 0(%r6), 0
|
|
; CHECK: br %r14
|
|
%res = load i32 *%resptr
|
|
%unused = call i8 *@strcpy(i8 *%dest, i8 *%src)
|
|
store i32 0, i32 *%storeptr
|
|
ret i32 %res
|
|
}
|