[mercury-users] Is -O0 actually necessary on MacOS X with gcc-4.0?

[Michael Day]

Hi Julien,

> For low-level C grades**, yes.  For the hlc grades, (most probably) no.
> 
> Julien.
> 
> ** Actually only those low-level grades that use gcc global register 
> variables.

So that means asm_fast.gc, basically?

Mercury doesn't seem to support asm_fast.gc on MacOS X at all, 
regardless of whether it's PowerPC or Intel and which gcc version is in 
use; I don't quite understand why this is.

Cheers,

Michael

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