From: Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
To: gcc2@cygnus.com, egcs@cygnus.com
Subject: alloca + function call
Date: Wed, 03 Dec 1997 17:03:00 -0000 [thread overview]
Message-ID: <x7hg8q11y0.fsf@myware.rz.uni-karlsruhe.de> (raw)
Hi,
Could gcc be changed in a way that code like
a = foo (alloca (42), b);
generated an error (or at least a warning)? On machines which pass
parameters on the stack a straight forward implementation (in ix86 asm)
pushl b
subl $42, %esp allocate 42 bytes on stack
pushl %esp
call foo
will fail miserable.
-- Uli
---------------. drepper at gnu.org ,-. Rubensstrasse 5
Ulrich Drepper \ ,-------------------' \ 76149 Karlsruhe/Germany
Cygnus Solutions `--' drepper at cygnus.com `------------------------
reply other threads:[~1997-12-03 17:03 UTC|newest]
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