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* [Bug target/54344] New: Issue with multiple "arch=" function attributes.
@ 2012-08-21 12:21 einar.sjurso+gnu at gmail dot com
2014-01-13 9:44 ` [Bug target/54344] illegal instructions generated with multiple "arch" " jtaylor.debian at googlemail dot com
2021-08-28 18:57 ` pinskia at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: einar.sjurso+gnu at gmail dot com @ 2012-08-21 12:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54344
Bug #: 54344
Summary: Issue with multiple "arch=" function attributes.
Classification: Unclassified
Product: gcc
Version: 4.7.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: einar.sjurso+gnu@gmail.com
#include <stdio.h>
#include <stdarg.h>
int __attribute__ ((__target__ ("arch=corei7-avx", "tune=corei7-avx")))
printf_avx(const char *restrict format, ...)
{
va_list ap;
va_start(ap, format);
const int ret = vfprintf(stdout, format, ap);
va_end(ap);
return ret;
}
int __attribute__ ((__target__ ("arch=atom", "tune=atom"))) printf_noavx(const
char *restrict format, ...)
{
va_list ap;
va_start(ap, format);
const int ret = vfprintf(stdout, format, ap);
va_end(ap);
return ret;
}
Given this silly example, vmovaps will ge generated in printf_noavx.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug target/54344] illegal instructions generated with multiple "arch" function attributes
2012-08-21 12:21 [Bug target/54344] New: Issue with multiple "arch=" function attributes einar.sjurso+gnu at gmail dot com
@ 2014-01-13 9:44 ` jtaylor.debian at googlemail dot com
2021-08-28 18:57 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: jtaylor.debian at googlemail dot com @ 2014-01-13 9:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54344
Julian Taylor <jtaylor.debian at googlemail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jtaylor.debian at googlemail dot c
| |om
--- Comment #1 from Julian Taylor <jtaylor.debian at googlemail dot com> ---
you can work around the issue by putting the attributes only in the
declarations not the definitions and the declaration must be placed before all
definitions.
int printf_avx(const char *restrict format, ...) __attribute__ ((__target__
("arch=corei7-avx", "tune=corei7-avx"))) ;
int printf_noavx(const char *restrict format, ...) __attribute__ ((__target__
("arch=atom", "tune=atom"))) ;
int printf_avx(const char *restrict format, ...)
{
va_list ap;
...
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug target/54344] illegal instructions generated with multiple "arch" function attributes
2012-08-21 12:21 [Bug target/54344] New: Issue with multiple "arch=" function attributes einar.sjurso+gnu at gmail dot com
2014-01-13 9:44 ` [Bug target/54344] illegal instructions generated with multiple "arch" " jtaylor.debian at googlemail dot com
@ 2021-08-28 18:57 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-28 18:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54344
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Target Milestone|--- |4.9.0
Known to fail| |4.8.2, 4.8.5
Known to work| |4.9.0, 5.1.0, 7.1.0
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Fixed in GCC 4.9.0. There were many improvements to the target attribute for
GCC 4.9.0 and even some for later versions of the compiler.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-08-28 18:57 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2012-08-21 12:21 [Bug target/54344] New: Issue with multiple "arch=" function attributes einar.sjurso+gnu at gmail dot com
2014-01-13 9:44 ` [Bug target/54344] illegal instructions generated with multiple "arch" " jtaylor.debian at googlemail dot com
2021-08-28 18:57 ` pinskia at gcc dot gnu.org
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