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
|
; RUN: llc < %s -march=x86 -mtriple=i686-pc-linux-gnu | grep movs | count 1
@A = global [32 x i32] zeroinitializer
@B = global [32 x i32] zeroinitializer
declare void @llvm.memcpy.i32(i8*, i8*, i32, i32)
define void @main() nounwind {
; dword copy
call void @llvm.memcpy.i32(i8* bitcast ([32 x i32]* @A to i8*),
i8* bitcast ([32 x i32]* @B to i8*),
i32 128, i32 4 )
; word copy
call void @llvm.memcpy.i32( i8* bitcast ([32 x i32]* @A to i8*),
i8* bitcast ([32 x i32]* @B to i8*),
i32 128, i32 2 )
; byte copy
call void @llvm.memcpy.i32( i8* bitcast ([32 x i32]* @A to i8*),
i8* bitcast ([32 x i32]* @B to i8*),
i32 128, i32 1 )
ret void
}
|
