| ; 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 |
| } |
| |
