[RFA] mips_register_virtual_type

[Michael Snyder <msnyder@cygnus.com>]

Andrew, Kevin, 

I think with this change, mips_virtual_register_type is robust enough
to use with all mips configurations.  What do you think?  Can we 
blow away the remaining definitions of REGISTER_VIRTUAL_TYPE?

Michael

2002-08-20  Michael Snyder  <msnyder@redhat.com>

	* mips-tdep.c (mips_register_virtual_type): Account for
	FP_REGISTER_DOUBLE.

Index: mips-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/mips-tdep.c,v
retrieving revision 1.115
diff -p -r1.115 mips-tdep.c
*** mips-tdep.c	20 Aug 2002 23:07:42 -0000	1.115
--- mips-tdep.c	21 Aug 2002 00:10:08 -0000
*************** if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG
*** 571,577 ****
     definitions found in config/mips/tm-*.h.  I'm concerned about
     the ``FCRCS_REGNUM <= reg && reg <= LAST_EMBED_REGNUM'' clause
     though.  In some cases FP_REGNUM is in this range, and I doubt
!    that this code is correct for the 64-bit case.  */
  
  static struct type *
  mips_register_virtual_type (int reg)
--- 571,581 ----
     definitions found in config/mips/tm-*.h.  I'm concerned about
     the ``FCRCS_REGNUM <= reg && reg <= LAST_EMBED_REGNUM'' clause
     though.  In some cases FP_REGNUM is in this range, and I doubt
!    that this code is correct for the 64-bit case.  
! 
!    MVS: FCRCS_REGNUM will not overlap with the FP registers.
!    On Irix, the FP registers run from 32 to 63 and FCRCS is 69.
!    Everywhere else, they run from 38 to 69 and FCRCS is 70.  */
  
  static struct type *
  mips_register_virtual_type (int reg)
*************** mips_register_virtual_type (int reg)
*** 580,588 ****
      {
        /* Floating point registers...  */
        if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
! 	return builtin_type_ieee_double_big;
        else
! 	return builtin_type_ieee_double_little;
      }
    else if (reg == PS_REGNUM /* CR */)
      return builtin_type_uint32;
--- 584,594 ----
      {
        /* Floating point registers...  */
        if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
! 	return FP_REGISTER_DOUBLE ? 
! 	  builtin_type_ieee_double_big : builtin_type_ieee_single_big;
        else
! 	return FP_REGISTER_DOUBLE ?
! 	  builtin_type_ieee_double_little : builtin_type_ieee_single_little;
      }
    else if (reg == PS_REGNUM /* CR */)
      return builtin_type_uint32;