File: call-intrinsics.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (19 lines) | stat: -rw-r--r-- 550 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
; RUN: opt < %s -passes=instcombine | llvm-dis

@X = global i8 0
@Y = global i8 12

declare void @llvm.memmove.p0.p0.i32(ptr, ptr, i32, i1)

declare void @llvm.memcpy.p0.p0.i32(ptr, ptr, i32, i1)

declare void @llvm.memset.p0.i32(ptr, i8, i32, i1)

define void @zero_byte_test() {
  ; These process zero bytes, so they are a noop.
  call void @llvm.memmove.p0.p0.i32(ptr @X, ptr @Y, i32 0, i1 false )
  call void @llvm.memcpy.p0.p0.i32(ptr @X, ptr @Y, i32 0, i1 false )
  call void @llvm.memset.p0.i32(ptr @X, i8 123, i32 0, i1 false )
  ret void
}