Re: xcode 1.2, -fast and ppc_intrinsics.h
Re: xcode 1.2, -fast and ppc_intrinsics.h
- Subject: Re: xcode 1.2, -fast and ppc_intrinsics.h
- From: Mark Eissler <email@hidden>
- Date: Wed, 28 Apr 2004 12:18:05 -0400
I would like to use -fast too, but in my attempt to use this a.m. I get
a huge number of warnings of the following sort:
type-punning to incomplete type might break strict-aliasing rules
This can appear multiple times for a single source file. I'm still
trying to figure out how these classes are incomplete. All of my
symbols are defined. Maybe I'm missing some that must be defined as
well to make a defined type complete in Obj-C? The docs don't discuss
this if that's the case.
If I build with optimization set at -O3 I don't have any problems (that
is, I must not have warnings turned on for whatever is causing the
type-punning warnings).
-mark
On Apr 24, 2004, at 11:51 PM, Brian Barnes wrote:
I bug reported this one earlier, still not working. I was wondering
if I could be told why it's not working (really curious) and if
there's any work around.
My program can compile fine with:
-fstrict-aliasing -ffast-math -funroll-loops -falign-loops-max-skip=15
-falign-jumps-max-skip=15 -falign-loops=16 -falign-jumps=16
-falign-functions=16 -malign-natural -mdynamic-no-pic -mcpu=7400
-force_cpusubtype_ALL
But if I use:
-fast -mcpu=G4 (or 7400, or whatever)
It blows up with:
ld: Undefined symbols:
_astrcmp.104
___frsqrtes.94
___fmadds.82
___frsqrte.93
All from ppc_intrinsics.h, which seems to have an alternate copy under
the "3.3-fast" directory. I include ppc_intrinsics by:
#include <ppc_intrinsics.h>
Maybe I should link directly with the fast version? I'd really like
to use fast :)
[>] Brian
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--
Mark Eissler, email@hidden
Mixtur Interactive, Inc.
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