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RE: Assembly generation chnages between compiler versions
- From: Sharath Manjunatha <shamanju at cisco dot com>
- To: "'Andrew Haley'" <aph at redhat dot com>
- Cc: <gcc-help at gcc dot gnu dot org>
- Date: Wed, 25 Jun 2008 16:29:30 +0530
- Subject: RE: Assembly generation chnages between compiler versions
- Authentication-results: sj-dkim-1; header.From=shamanju@cisco.com; dkim=pass ( sig from cisco.com/sjdkim1004 verified; );
- Reply-to: Sharath Manjunatha <shamanju at cisco dot com>
Hi Andrew,
> The compiler has been substantially rewritten, with new
> optimization and code generation strategies.
Ok. I do see some changes in the end of function marker in the assembly
output, between 2.95 and 3.4 compiler. The 2.95 compiler was using .Lef
whereas 3.4 will use .-<function name>. Why this has been changed, do you
have any pointer which says about the major changes from 2.95 to 3.4 GCC
compiler .
Thanks
Sharath.
> -----Original Message-----
> From: Andrew Haley [mailto:aph@redhat.com]
> Sent: Wednesday, June 25, 2008 3:33 PM
> To: shamanju@cisco.com
> Cc: gcc-help@gcc.gnu.org
> Subject: Re: Assembly generation chnages between compiler versions
>
> Sharath Manjunatha wrote:
>
> > What are the assembler changes between gcc-2.95 and
> gcc-3.4. where I
> > can find these changes between two version of compiler.
>
> The compiler has been substantially rewritten, with new
> optimization and code generation strategies.
>
> Andrew.
>