This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH] Omit frame pointer and fix %ebp by default on x86 (take3)
- From: Roger Sayle <roger at eyesopen dot com>
- To: Jakub Jelinek <jakub at redhat dot com>
- Cc: Andrew Haley <aph at redhat dot com>, <gcc-patches at gcc dot gnu dot org>, Richard Henderson <rth at redhat dot com>
- Date: Mon, 16 Aug 2004 14:25:20 -0600 (MDT)
- Subject: Re: [PATCH] Omit frame pointer and fix %ebp by default on x86 (take3)
On Mon, 16 Aug 2004, Jakub Jelinek wrote:
> Why do you think it is an dramatic increase?
> On x86-64 where -fasynchronous-unwind-tables is the default, .eh_frame
> size is usually smaller than 5% of code size,
You forget so quickly :> I posted the benchmarks for you here:
http://gcc.gnu.org/ml/gcc-patches/2004-07/msg01202.html
On GCC's CSiBE benchmark, -fasynchronous-unwind-tables increases the
object file sizes measured in that benchmark by over 30% on IA-32.
Roger
--