I think Thiago and Eric just want to know which code-gen is better and why...
2015-05-12 23:29 GMT+08:00 Eric Botcazou <ebotca...@libertysurf.fr>: >> Note that at -O3 there is a difference still: >> clang (3.6.0): >> addl %esi, %edi >> movl %edi, %eax >> retq >> >> gcc (4.9.2) >> leal (%rdi,%rsi), %eax >> ret >> >> Can't tell which is best, if any. > > But what's your point exactly here? You cannot expect different compilers to > generate exactly the same code on a given testcase for non-toy architectures. > > Note that this kind of discussion is more appropriate for gcc-h...@gcc.gnu.org > > -- > Eric Botcazou
