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Re: builit-in function
- From: Ian Lance Taylor <iant at google dot com>
- To: chingfu <zongyue dot chen at gmail dot com>
- Cc: gcc-help at gcc dot gnu dot org
- Date: 01 Aug 2006 06:56:52 -0700
- Subject: Re: builit-in function
- References: <5591141.post@talk.nabble.com>
chingfu <zongyue.chen@gmail.com> writes:
> How the builit-in function work? Does built-in function will reference to
> GLIB ?
When a built-in function is supported on your architecture, it will
be compiled directly, and will not result in an external reference.
Some built-in functions are always supported. Some are only supported
directly if the architecture supports them. Some have a fallback in
libgcc.a, which means that the C library does not need to provide a
version.
If you have a question about a specific built-in function, please ask
that question.
Ian