https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41001
Martin Sebor changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
CC|
--- Comment #7 from joseph at codesourcery dot com 2009-08-08 10:37 ---
Subject: Re: alloca broken for -fno-builtin
On Sat, 8 Aug 2009, ktietz at gcc dot gnu dot org wrote:
> Well, IMHO it is the same for alloca, as for setjmp, or longjmp. Even some
> code
> for detecting alloca sema
--- Comment #6 from rguenth at gcc dot gnu dot org 2009-08-08 10:31 ---
The special_function thing is to make us not miss special side-effects of those
functions even when we didn't recognize them as builtins. alloca doesn't have
one apart from the likeliness to blow up the stack if we
--- Comment #5 from ktietz at gcc dot gnu dot org 2009-08-08 08:43 ---
(In reply to comment #4)
> -fno-builtin means more or less exactly that the compiler *should not*
> assume anything special about a function from its name (unless the name
> starts __builtin or some similar reserved
--- Comment #4 from joseph at codesourcery dot com 2009-08-07 22:36 ---
Subject: Re: alloca broken for -fno-builtin
On Fri, 7 Aug 2009, ktietz at gcc dot gnu dot org wrote:
> Well, if so. It makes no sense that -fno-builtins tries to call a function
> which isn't present. But for othe
--- Comment #3 from ktietz at gcc dot gnu dot org 2009-08-07 21:05 ---
(In reply to comment #2)
> Subject: Re: New: alloca broken for -fno-builtin
>
> On Fri, 7 Aug 2009, ktietz at gcc dot gnu dot org wrote:
>
> > The function alloca (for cygwin/mingw target _alloca) is broken or not
--- Comment #2 from joseph at codesourcery dot com 2009-08-07 17:24 ---
Subject: Re: New: alloca broken for -fno-builtin
On Fri, 7 Aug 2009, ktietz at gcc dot gnu dot org wrote:
> The function alloca (for cygwin/mingw target _alloca) is broken or not
> available (for linux64), when u
--- Comment #1 from ktietz at gcc dot gnu dot org 2009-08-07 15:38 ---
Created an attachment (id=18324)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18324&action=view)
Testcase for alloca/_alloca
to be compiled with option -fno-builtins
--
http://gcc.gnu.org/bugzilla/show_bu
