[Bug target/66930] [5 Regression]: gengtype.c is miscompiled during stage2

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66930

--- Comment #13 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Kazumoto Kojima from comment #12)
> 
> --- a/config/sh/sh-protos.h
> +++ b/config/sh/sh-protos.h
> @@ -198,7 +198,7 @@ sh_find_set_of_reg (rtx reg, rtx_insn* insn, F stepfunc,
>      {
>        if (BARRIER_P (result.insn))
>  	break;
> -      if (!NONJUMP_INSN_P (result.insn))
> +      if (!NONJUMP_INSN_P (result.insn) && !CALL_P (result.insn))
>  	continue;
>        if (reg_set_p (reg, result.insn))
>  	{
> 
> and it works like as my expectation, though I'm not sure whether it's
> a "right thing" or not.

This would be OK for hardregs (which are clobbered by calls).  When working on
pseudos, it's actually OK to ignore calls.  Maybe it'd be a good idea to extend
sh_find_set_of_reg to check for call clobbered hardregs only.  This will make
the function easier to use.