[Patch v3 Fortran] Fix c_float128 and c_float128_complex on targets with 128-bit long double.

Sandra Loosemore sandra@codesourcery.com
Tue Aug 10 22:46:11 GMT 2021

On 8/10/21 2:29 AM, Tobias Burnus wrote:
> [snip]
> To conclude: I like the code changes (LGTM); the
> '__float128' -> 'TFmode' comment change also matches the code.
> However, I think both longer comments need to be updated.

OK.  I used your wording verbatim for the first one.  For the second 
one, I'm still pretty confused as I think it is at least theoretically 
possible on PowerPC to have a target with 64-bit long double (AIX?) that 
also supports the __ibm128 format, and it would be wrong to assume that 
*any* 128-bit mode that's not long double is IEEE.  So I decided the 
best thing is just to replace the FIXME with a pointer to the issue I 
opened yesterday


and folks who actually understand this stuff can add some more 
discussion there.

Here's a new version of the patch with changes to the two comments only. 
  OK to commit this one?

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