File: bcopy.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (25 lines) | stat: -rw-r--r-- 973 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s

declare void @bcopy(i8* nocapture readonly, i8* nocapture, i32)

define void @bcopy_memmove(i8* nocapture readonly %a, i8* nocapture %b) {
; CHECK-LABEL: @bcopy_memmove(
; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i8* [[A:%.*]] to i64*
; CHECK-NEXT:    [[TMP2:%.*]] = bitcast i8* [[B:%.*]] to i64*
; CHECK-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]], align 1
; CHECK-NEXT:    store i64 [[TMP3]], i64* [[TMP2]], align 1
; CHECK-NEXT:    ret void
;
  tail call void @bcopy(i8* %a, i8* %b, i32 8)
  ret void
}

define void @bcopy_memmove2(i8* nocapture readonly %a, i8* nocapture %b, i32 %len) {
; CHECK-LABEL: @bcopy_memmove2(
; CHECK-NEXT:    call void @llvm.memmove.p0i8.p0i8.i32(i8* align 1 [[B:%.*]], i8* align 1 [[A:%.*]], i32 [[LEN:%.*]], i1 false)
; CHECK-NEXT:    ret void
;
  tail call void @bcopy(i8* %a, i8* %b, i32 %len)
  ret void
}