ed at gcc dot gnu dot org
ReportedBy: evandro at yahoo dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23972
--- Additional Comments From evandro at yahoo dot com 2005-09-19 20:05
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Created an attachment (id=9776)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9776&action=view)
Sample C++ code.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23972
--- Additional Comments From evandro at yahoo dot com 2005-09-19 20:06
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Created an attachment (id=9777)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9777&action=view)
Preprocessed sample code.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23972
--- Additional Comments From evandro at yahoo dot com 2005-09-19 20:08
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(In reply to comment #0)
> Better yet:
>
> movq%mm0, (%r8) #
> emms
Ahem, never mind...
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23972
--- Additional Comments From evandro at yahoo dot com 2005-09-20 16:06
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It would be nice if -Wall, -Wstrict-aliasing or -Wstrict-aliasing=2 caught it...
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23972
--- Additional Comments From evandro at yahoo dot com 2005-09-20 16:43
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-fno-strict-aliasing still doesn't result in the correct code. I agree with
your assesment, but what am I missing?
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23972
--- Additional Comments From evandro at yahoo dot com 2005-09-20 16:45
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Ahem, never mind. My eyes are blury after looking at so much asm code...
Sorry.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23972
rget
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: evandro at yahoo dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugz
--- Additional Comments From evandro at yahoo dot com 2005-05-27 18:21
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Created an attachment (id=8982)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=8982&action=view)
Test-case.
If compiled for x86_64 with -O2 or greater, results in bogus code.
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http://gcc.
--- Additional Comments From evandro at yahoo dot com 2005-05-27 18:39
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(In reply to comment #2)
The wonders of -Wall...
Yes, -fno-strict-aliasing does help.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21788
--- Additional Comments From evandro at yahoo dot com 2004-12-03 23:15
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It now causes building natively on AMD64 to fail...
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16135
--- Additional Comments From evandro at yahoo dot com 2004-12-04 00:09
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> The patch? If so, this would seem surprising:
> http://gcc.gnu.org/ml/gcc-testresults/2004-12/msg00028.html
It fails building libgfortran as of "make install". Could it be that there's a
--- Additional Comments From evandro at yahoo dot com 2004-12-04 00:13
---
(In reply to comment #14)
> > The patch? If so, this would seem surprising:
> > http://gcc.gnu.org/ml/gcc-testresults/2004-12/msg00028.html
>
> It fails building libgfortran as of "make
--- Additional Comments From evandro at yahoo dot com 2004-12-04 18:06
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Never mind, it was a dud. My bad...
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16135
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