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Re: gcc and SIMD
- From: Ian Lance Taylor <iant at google dot com>
- To: ranjith kumar <ranjit_kumar_b4u at yahoo dot co dot uk>
- Cc: gcc-help at gcc dot gnu dot org
- Date: 05 Mar 2007 09:36:22 -0800
- Subject: Re: gcc and SIMD
- References: <20070305103142.92029.qmail@web27408.mail.ukl.yahoo.com>
ranjith kumar <ranjit_kumar_b4u@yahoo.co.uk> 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