public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug target/55390] New: [4.8 Regression] Error when building with -mfpmath=sse
@ 2012-11-19 10:32 d.g.gorbachev at gmail dot com
2012-11-19 11:03 ` [Bug target/55390] " jakub at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2012-11-19 10:32 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55390
Bug #: 55390
Summary: [4.8 Regression] Error when building with -mfpmath=sse
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: d.g.gorbachev@gmail.com
If I build GCC having -march=pentium4 -mfpmath=sse in CFLAGS_FOR_TARGET, it
fails with the following error:
../../../gcc-4.8/libatomic/load_n.c:1:0: error: SSE instruction set disabled,
using 387 arithmetics [-Werror]
because -march=i586 appended in the makefile. It should also add -mfpmath=387
then.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug target/55390] [4.8 Regression] Error when building with -mfpmath=sse
2012-11-19 10:32 [Bug target/55390] New: [4.8 Regression] Error when building with -mfpmath=sse d.g.gorbachev at gmail dot com
@ 2012-11-19 11:03 ` jakub at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-11-19 11:03 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55390
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |jakub at gcc dot gnu.org
Resolution| |INVALID
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-19 11:03:02 UTC ---
No, I'd say it is a user error and you should build with -msse2 -mfpmath=sse2
explicitly in the CFLAGS*. Whatever place is passing -march=i486 or
-march=i586 can't guess what you added to CFLAGS, and -mfpmath=387 isn't always
the right thing.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2012-11-19 11:03 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-11-19 10:32 [Bug target/55390] New: [4.8 Regression] Error when building with -mfpmath=sse d.g.gorbachev at gmail dot com
2012-11-19 11:03 ` [Bug target/55390] " jakub at gcc dot gnu.org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).