[Bug debug/57351] ICE: internal compiler error: in dbx_reg_number, at dwarf2out.c:10507 on arm-none-eabi

["chrbr at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57351

--- Comment #7 from chrbr at gcc dot gnu.org ---
(In reply to ktkachov from comment #6)
> (In reply to chrbr from comment #5)
> > > If I print out the regno argument to arm_dbx_register_number, it's 272 which
> > > seem to me like it could be reg number in DWARF numbering?
> > 
> > yes it is. strange, I can't see this new failure, with a full newlib build
> > for 
> > 
> > 	--enable-languages=c,c++ \
> > 	--with-fpu=neon-vfpv4 --with-float=hard --with-arch=armv7-a 
> > 
> > could you please attach the preprocessed file ? thanks,
> 
> My apologies, the attachment I added in the bug report is reduced from
> newlib (I initially said it was from libgfortran).
> 
> I'm getting the ICE in arm_dbx_register_number on the initial file I
> attached.
> 
> On a side note, in your patch you say:
> -      t = one_reg_loc_descriptor (REGNO (XVECEXP (regs, 0, i)),
> +      reg = REGNO (XVECEXP (regs, 0, i));
> +      t = one_reg_loc_descriptor (DBX_REGISTER_NUMBER (reg),
> 
> but reg is undeclared in this scope (changing it to "unsigned reg = ..."
> fixes it)
> which suggests to me there's some other changes?
> In your original patch you also moved the #ifdef LEAF_REG_MAP and associated
> definitions inside the "if (regs == NULL_RTX)" block...

OOPS ! I committed the wrong patch, I kept to good version locally. sorry about
this I don't know what I messed in my sandbox. recommitting the first part now
this now as approved. Will send the ARM part on the ML after the testsuite.

thanks for catching it.