mirror of
https://github.com/RPCS3/llvm.git
synced 2024-12-22 03:58:16 +00:00
19262ee072
It would also make sense to use it for memchr; I'm working on that now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188547 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1.0 KiB
LLVM
40 lines
1.0 KiB
LLVM
; Test strlen using SRST, i64 version.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
declare i64 @strlen(i8 *%src)
|
|
declare i64 @strnlen(i8 *%src, i64 %len)
|
|
|
|
; Test strlen with its proper i64 prototype. It would also be valid for
|
|
; the uses of %r3 and REG after the LGR to be swapped.
|
|
define i64 @f1(i32 %dummy, i8 *%src) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK-DAG: lhi %r0, 0
|
|
; CHECK-DAG: lghi %r2, 0
|
|
; CHECK-DAG: lgr [[REG:%r[145]]], %r3
|
|
; CHECK: [[LABEL:\.[^:]*]]:
|
|
; CHECK-NEXT: srst %r2, [[REG]]
|
|
; CHECK-NEXT: jo [[LABEL]]
|
|
; CHECK-NEXT: BB#{{[0-9]+}}
|
|
; CHECK-NEXT: sgr %r2, %r3
|
|
; CHECK: br %r14
|
|
%res = call i64 @strlen(i8 *%src)
|
|
ret i64 %res
|
|
}
|
|
|
|
; Test strnlen with its proper i64 prototype.
|
|
define i64 @f2(i64 %len, i8 *%src) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK-DAG: agr %r2, %r3
|
|
; CHECK-DAG: lhi %r0, 0
|
|
; CHECK-DAG: lgr [[REG:%r[145]]], %r3
|
|
; CHECK: [[LABEL:\.[^:]*]]:
|
|
; CHECK-NEXT: srst %r2, [[REG]]
|
|
; CHECK-NEXT: jo [[LABEL]]
|
|
; CHECK-NEXT: BB#{{[0-9]+}}
|
|
; CHECK-NEXT: sgr %r2, %r3
|
|
; CHECK: br %r14
|
|
%res = call i64 @strnlen(i8 *%src, i64 %len)
|
|
ret i64 %res
|
|
}
|