File: call-intrinsics.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16.1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,388 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (19 lines) | stat: -rw-r--r-- 708 bytes parent folder | download | duplicates (13) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
; RUN: opt < %s -instcombine | llvm-dis

@X = global i8 0                ; <i8*> [#uses=3]
@Y = global i8 12               ; <i8*> [#uses=2]

declare void @llvm.memmove.p0i8.p0i8.i32(i8*, i8*, i32, i1)

declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i1)

declare void @llvm.memset.p0i8.i32(i8*, i8, i32, i1)

define void @zero_byte_test() {
        ; These process zero bytes, so they are a noop.
        call void @llvm.memmove.p0i8.p0i8.i32(i8* align 128 @X, i8* align 128 @Y, i32 0, i1 false )
        call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 128 @X, i8* align 128 @Y, i32 0, i1 false )
        call void @llvm.memset.p0i8.i32(i8* align 128 @X, i8 123, i32 0, i1 false )
        ret void
}