This is the mail archive of the
gcc-help@gcc.gnu.org
mailing list for the GCC project.
question about gcc assembly
- From: "Coline Lelong-Pantel" <coline dot lelong-pantel at laposte dot net>
- To: "gcc-help" <gcc-help at gcc dot gnu dot org>
- Date: Tue, 27 Jun 2006 10:04:37 +0200
- Subject: question about gcc assembly
Hi
I've compiled a short program with two different gcc versions
(3.2.3 and 3.4.3) but it seems that the produced assembly code
isn't the same.
In fact 3.4.3 produce a more important code. For example when
gcc 3.2.3 produces :
movl $0x405c28f6, -4(%ebp)
gcc 3.4.3 may use:
movl $0x405c28f6, %eax
movl %eax, -4(%ebp)
I wonder why it now uses %eax register ? And is there any way
to prevent this, in order to have similar assembly code with
both gcc versions ? Maybe some kind of option ?
Thanks for your answers.
Coline
PS Excuse my poor english, but it isn't my native langage.
Accédez au courrier électronique de La Poste : www.laposte.net
3615 LAPOSTENET (0,34 ?/mn)