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-   -   ICE in reload_cse_simplify_operands, at postreload.c:392 (http://www.linux-archive.org/debian-gcc/4419-ice-reload_cse_simplify_operands-postreload-c-392-a.html)

"ebotcazou at gcc dot gnu dot org" 11-24-2007 08:47 PM

ICE in reload_cse_simplify_operands, at postreload.c:392
 
------- Comment #11 from ebotcazou at gcc dot gnu dot org 2007-11-24 21:47 -------
> Is there a reason why you want to load/store HImode/QImode values in
> the FPU registers on sparc? On the pa, there aren't any insns that
> operate on them. So, the only reason we supported this was because
> these modes are tied to SImode and DImode.

Same on SPARC, there are no HImode/QImode move insns either.

> I haven't seen the paradoxical subreg in a float/fix conversion
> insns with the current patch. I did see this in some of the first
> versions of pa_cannot_change_mode_class. I think I eliminated
> this problem by prevent mode changes in the FP registers:
>
> if (MAYBE_FP_REG_CLASS_P (class))
> return true;
>
> Due you think this problem is latent?

On SPARC or on the PA even with CANNOT_CHANGE_MODE_CLASS?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34091

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