43 lines
1.1 KiB
LLVM
43 lines
1.1 KiB
LLVM
|
; Test that strcmp won't be converted to MVST if calls are
|
||
|
|
; marked with nobuiltin, eg. for sanitizers.
|
||
|
|
;
|
||
|
|
; 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-NOT: mvst
|
||
|
|
; CHECK: brasl %r14, strcpy
|
||
|
|
; CHECK: br %r14
|
||
|
|
%res = call i8 *@strcpy(i8 *%dest, i8 *%src) nobuiltin
|
||
|
|
ret i8 *%res
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check stpcpy.
|
||
|
|
define i8 *@f2(i8 *%dest, i8 *%src) {
|
||
|
|
; CHECK-LABEL: f2:
|
||
|
|
; CHECK-NOT: mvst
|
||
|
|
; CHECK: brasl %r14, stpcpy
|
||
|
|
; CHECK: br %r14
|
||
|
|
%res = call i8 *@stpcpy(i8 *%dest, i8 *%src) nobuiltin
|
||
|
|
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: l [[REG1:%r[0-9]+]], 0(%r5)
|
||
|
|
; CHECK-NOT: mvst
|
||
|
|
; CHECK: brasl %r14, strcpy
|
||
|
|
; CHECK: mvhi 0(%r6), 0
|
||
|
|
; CHECK: br %r14
|
||
|
|
%res = load i32, i32 *%resptr
|
||
|
|
%unused = call i8 *@strcpy(i8 *%dest, i8 *%src) nobuiltin
|
||
|
|
store i32 0, i32 *%storeptr
|
||
|
|
ret i32 %res
|
||
|
|
}
|