20 lines
611 B
LLVM
20 lines
611 B
LLVM
; RUN: opt < %s -instcombine | llvm-dis
|
|
|
|
@X = global i8 0 ; <i8*> [#uses=3]
|
|
@Y = global i8 12 ; <i8*> [#uses=2]
|
|
|
|
declare void @llvm.memmove.i32(i8*, i8*, i32, i32)
|
|
|
|
declare void @llvm.memcpy.i32(i8*, i8*, i32, i32)
|
|
|
|
declare void @llvm.memset.i32(i8*, i8, i32, i32)
|
|
|
|
define void @zero_byte_test() {
|
|
; These process zero bytes, so they are a noop.
|
|
call void @llvm.memmove.i32( i8* @X, i8* @Y, i32 0, i32 100 )
|
|
call void @llvm.memcpy.i32( i8* @X, i8* @Y, i32 0, i32 100 )
|
|
call void @llvm.memset.i32( i8* @X, i8 123, i32 0, i32 100 )
|
|
ret void
|
|
}
|
|
|