--- Comment #14 from yotambarnoy at gmail dot com 2010-09-02 20:47 ---
Getting back to the original question, I did some reading online and I can't
figure out why this breaks the strict aliasing rules.
Isn't void * some kind of special case? Shouldn't I be able t
--- Comment #12 from yotambarnoy at gmail dot com 2010-09-01 18:35 ---
Right. Unfortunately
> typedef my_unaligned_aliasing_uint32 uint32
> __attribute__((aligned(1),may_alias));
>
> inline __attribute__((__always_inline__)) uint32 READ_UINT32(const void *ptr)
> {
>
--- Comment #8 from yotambarnoy at gmail dot com 2010-09-01 05:03 ---
Unfortunately, a lib based solutions are difficult for me to implement. The
reason is that the current PSP SDK uses newlib. I can probably change my
personal toolchain with some work, but then it's a c
--- Comment #6 from yotambarnoy at gmail dot com 2010-09-01 04:32 ---
I recently implemented a custom memcpy for ScummVM. I didn't notice the
standard memcpy using lwl and lwr. In any case, how would memcpy do it any
better? Unless you're referring to the new memcpy inlinin
--- Comment #4 from yotambarnoy at gmail dot com 2010-08-31 15:24 ---
Good job picking up on that.
There must be a better way of telling the compiler to generate lwr and lwl MIPS
instructions without breaking strict aliasing rules...?
Thanks a bunch!
--
yotambarnoy at gmail dot
--- Comment #2 from yotambarnoy at gmail dot com 2010-08-31 11:53 ---
Created an attachment (id=21603)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21603&action=view)
header.h, used by logic.cpp
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45462
--- Comment #1 from yotambarnoy at gmail dot com 2010-08-31 11:52 ---
Created an attachment (id=21602)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21602&action=view)
Logic.ii, where gcc makes the mistake
LogicUp() is the critical function
--
http://gcc.gnu.org/b
Product: gcc
Version: 4.3.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: yotambarnoy at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45462
