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c/8661: GCC 3.2 don't produces builtin code for __builtin_alloca
- From: bkausbk at web dot de
- To: gcc-gnats at gcc dot gnu dot org
- Date: 20 Nov 2002 19:26:27 -0000
- Subject: c/8661: GCC 3.2 don't produces builtin code for __builtin_alloca
- Reply-to: bkausbk at web dot de
>Number: 8661
>Category: c
>Synopsis: GCC 3.2 don't produces builtin code for __builtin_alloca
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: wrong-code
>Submitter-Id: net
>Arrival-Date: Wed Nov 20 11:36:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: Benjamin Kalytta
>Release: GCC 3.x
>Organization:
>Environment:
x86 cygwin (windows 2000 prof)
>Description:
GCC don't produces alloca builtin function if the file is just compiled with switch "gcc -c".
#define alloca(x) __builtin_alloca(x)
GCC will produce an external "_alloca" symbol.
I think this should be fixed.
whereas gcc test.c will work and don't produces external symbol. (symbol into cygwin.dll or other libc libraries)
>How-To-Repeat:
gcc -c test.c
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/plain; name="test.c"
Content-Disposition: inline; filename="test.c"
#define alloca(x) __builtin_alloca(x)
unsigned int m() {
void * n=alloca(16);
}