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Re: Optimization level per-compiler?
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Re: Optimization level per-compiler?


  • Subject: Re: Optimization level per-compiler?
  • From: Clark Cox <email@hidden>
  • Date: Mon, 30 Jan 2006 11:50:36 -0500

Have you tried:

PER_ARCH_CFLAGS_ppc = -Os
PER_ARCH_CFLAGS_i386 = -O2


On 1/30/06, Dirk Stegemann <email@hidden> wrote:
> Hello all,
>
> I'm building a Universal binary successfully by setting
>
> GCC_VERSION_i386 4.0
> GCC_VERSION_ppc 3.3
> MACOSX_DEPLOYMENT_TARGET 10.2
> MACOSX_DEPLOYMENT_TARGET_i386 10.4
> MACOSX_DEPLOYMENT_TARGET_ppc 10.2
> SDKROOT_i386 /Developer/SDKs/MacOSX10.4u.sdk
> SDKROOT_ppc /Developer/SDKs/MacOSX10.2.8.sdk
>
>
> Unfortunately I'm encountering crashes in the ppc version when
> optimization level is set to "Fastest, Smallest [-Os]" (using GCC
> 3.3). The crashes vanish when I lower the optimization level to
> "Fast" (-O2).
>
> Until the sources are fixed (which will take a while), I'm
> comfortable to stick to the lower optimization level.
>
> On the other hand, the i386 binaries are working fine (compiled using
> GCC 4.0). Testing has made good progress so far and I'd like to avoid
> having the i386 binary re-compiled (and thus re-tested) just to make
> the ppc binary work.
>
> So, I'd like to adjust the optimization level per-compiler.
> Something like
> "GCC_OPTIMIZATION_LEVEL_i386" / "GCC_OPTIMIZATION_LEVEL_ppc"
> or
> "GCC_OPTIMIZATION_LEVEL_40 / "GCC_OPTIMIZATION_LEVEL_33"
>
> would be great.
>
> Does anybody know of such settings?
>
> Otherwise, I'd have to clone my Universal target, set those targets
> to build ppc and i386 binaries, respectively, and then create a third
> target which somehow creates the Universal binary out of the build
> results of the ppc/i386 targets, right?
>
> Any advice would be appreciated!
>
> Regards,
> Dirk Stegemann
>
>
>
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--
Clark S. Cox III
email@hidden
My CV/Resume:
http://homepage.mac.com/clarkcox3/files/Resume.pdf
http://homepage.mac.com/clarkcox3/files/Resume.html
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  • Follow-Ups:
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      • From: Dirk Stegemann <email@hidden>
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      • From: Alexander von Below <email@hidden>
References: 
 >Optimization level per-compiler? (From: Dirk Stegemann <email@hidden>)

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