Re: [PATCH 3/4] VAX: Use a mode with `const_double_zero' expressions

[Jeff Law via Gcc-patches]

On 1/7/21 6:50 PM, Maciej W. Rozycki wrote:
> For predictable semantics propagate the mode from operands referred by 
> the FP substitution to the `const_double_zero' expressions used with the 
> associated condition code calculation.  Use an iterator to make copies 
> of the FP substitution across the FP modes supported as the substitution 
> now has to match the mode of the operands.
>
>       gcc/
>       * config/pdp11/pdp11.md (subst_f<cc>): Add mode to operands and 
>       `const_double_zero'.
OK
jeff