; RUN: llc < %s -march=x86-64 | grep call.*memcpy | count 2 | |
declare void @llvm.memcpy.i64(i8*, i8*, i64, i32) | |
define i8* @my_memcpy(i8* %a, i8* %b, i64 %n) { | |
entry: | |
tail call void @llvm.memcpy.i64( i8* %a, i8* %b, i64 %n, i32 1 ) | |
ret i8* %a | |
} | |
define i8* @my_memcpy2(i64* %a, i64* %b, i64 %n) { | |
entry: | |
%tmp14 = bitcast i64* %a to i8* | |
%tmp25 = bitcast i64* %b to i8* | |
tail call void @llvm.memcpy.i64(i8* %tmp14, i8* %tmp25, i64 %n, i32 8 ) | |
ret i8* %tmp14 | |
} |