ranjith kumar <ranjit_kumar_b4u@xxxxxxxxxxx> writes: > > > 2) In those header files all functions call > > > _builtin_ia32_*. Where those functions(body) are > > > defined? > > > > They are intrinsic functions automatically defined > > by the compiler. > Please tell me in what file they are defined. config/i386/i386.c defines the builtin functions support for x86 and x86_64. They expand into insn patterns described mostly in i386.md, some in other .md files in that directory. Ian
