20 lines
570 B
LLVM
20 lines
570 B
LLVM
; RUN: opt < %s -passes=instcombine | llvm-dis
|
|
|
|
@X = global i8 0
|
|
@Y = global i8 12
|
|
|
|
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* @X, i8* @Y, i32 0, i1 false )
|
|
call void @llvm.memcpy.p0i8.p0i8.i32(i8* @X, i8* @Y, i32 0, i1 false )
|
|
call void @llvm.memset.p0i8.i32(i8* @X, i8 123, i32 0, i1 false )
|
|
ret void
|
|
}
|
|
|