HPUX IA64 longdouble changes

HPUX IA64 longdouble changes

[Steve Ellcey]

This patch is to fix the conversion of long doubles to unsigned
integers.  The original code was using the standard signed integer
conversion, this change is to use unsigned integer conversion routines
(from HP-UX libc).

This patch also gets rid of some bogus changes to udiv_optab,
sdiv_optab, smod_optab, and umod_optab that are in the same file.  For
some reason I was zeroing out the functions that did these operations
for SImode and thus forcing us to use the DImode operations.  I think
this was a temporary hack from some time ago and it is no longer needed
and should not be there.

Steve Ellcey
sje@cup.hp.com

2002-11-06  Steve Ellcey  <sje@cup.hp.com>

	* config/ia64/hpux_longdouble.h (FIXUNS_TRUNCTFSI2_LIBCALL): New.
	(FIXUNS_TRUNCTFDI2_LIBCALL): New.
	(fixunstfsi_libfunc): Change.
	(fixunstfdi_libfunc): Change.
	(sdiv_optab): Don't zero out SImode handler.
	(udiv_optab): Don't zero out SImode handler.
	(smod_optab): Don't zero out SImode handler.
	(umod_optab): Don't zero out SImode handler.

*** gcc.orig/gcc/config/ia64/hpux_longdouble.h	Wed Nov  6 14:03:09 2002
--- gcc/gcc/config/ia64/hpux_longdouble.h	Wed Nov  6 14:03:27 2002
*************** Boston, MA 02111-1307, USA.  */
*** 41,46 ****
--- 41,48 ----
  #define FLOATDITF2_LIBCALL "_U_Qfcnvxf_dbl_to_quad"
  #define FIX_TRUNCTFSI2_LIBCALL "_U_Qfcnvfxt_quad_to_sgl"
  #define FIX_TRUNCTFDI2_LIBCALL "_U_Qfcnvfxt_quad_to_dbl"
+ #define FIXUNS_TRUNCTFSI2_LIBCALL "_U_Qfcnvfxut_quad_to_sgl"
+ #define FIXUNS_TRUNCTFDI2_LIBCALL "_U_Qfcnvfxut_quad_to_dbl"
  #define EQTF2_LIBCALL "_U_Qfeq"
  #define NETF2_LIBCALL "_U_Qfne"
  #define GTTF2_LIBCALL "_U_Qfgt"
*************** Boston, MA 02111-1307, USA.  */
*** 76,94 ****
      floatditf_libfunc = gen_rtx_SYMBOL_REF (Pmode, FLOATDITF2_LIBCALL);  \
      fixtfsi_libfunc = gen_rtx_SYMBOL_REF (Pmode, FIX_TRUNCTFSI2_LIBCALL);\
      fixtfdi_libfunc = gen_rtx_SYMBOL_REF (Pmode, FIX_TRUNCTFDI2_LIBCALL);\
!     fixunstfsi_libfunc = gen_rtx_SYMBOL_REF (Pmode, FIX_TRUNCTFSI2_LIBCALL);  \
!     fixunstfdi_libfunc = gen_rtx_SYMBOL_REF (Pmode, FIX_TRUNCTFDI2_LIBCALL);  \
      eqtf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, EQTF2_LIBCALL);		\
      netf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, NETF2_LIBCALL);		\
      gttf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, GTTF2_LIBCALL);		\
      getf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, GETF2_LIBCALL);		\
      lttf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, LTTF2_LIBCALL);		\
      letf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, LETF2_LIBCALL);		\
- 									\
-   sdiv_optab->handlers[(int) SImode].libfunc = 0;                       \
-   udiv_optab->handlers[(int) SImode].libfunc = 0;                       \
-   smod_optab->handlers[(int) SImode].libfunc = 0;                       \
-   umod_optab->handlers[(int) SImode].libfunc = 0;                       \
  									\
      INIT_SUBTARGET_OPTABS;						\
    } while (0)
--- 78,91 ----
      floatditf_libfunc = gen_rtx_SYMBOL_REF (Pmode, FLOATDITF2_LIBCALL);  \
      fixtfsi_libfunc = gen_rtx_SYMBOL_REF (Pmode, FIX_TRUNCTFSI2_LIBCALL);\
      fixtfdi_libfunc = gen_rtx_SYMBOL_REF (Pmode, FIX_TRUNCTFDI2_LIBCALL);\
!     fixunstfsi_libfunc = gen_rtx_SYMBOL_REF (Pmode, FIXUNS_TRUNCTFSI2_LIBCALL);  \
!     fixunstfdi_libfunc = gen_rtx_SYMBOL_REF (Pmode, FIXUNS_TRUNCTFDI2_LIBCALL);  \
      eqtf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, EQTF2_LIBCALL);		\
      netf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, NETF2_LIBCALL);		\
      gttf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, GTTF2_LIBCALL);		\
      getf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, GETF2_LIBCALL);		\
      lttf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, LTTF2_LIBCALL);		\
      letf2_libfunc = gen_rtx_SYMBOL_REF (Pmode, LETF2_LIBCALL);		\
  									\
      INIT_SUBTARGET_OPTABS;						\
    } while (0)

Re: HPUX IA64 longdouble changes

[Jim Wilson]

> some reason I was zeroing out the functions that did these operations
> for SImode and thus forcing us to use the DImode operations.  I think
> this was a temporary hack from some time ago and it is no longer needed
> and should not be there.

This is because the original lib1funcs.asm file did not have working SImode
divide routines.  This was fixed by Richard Henderson 2000-09-05, so this
has indeed been obsolete for quite a while now.

> 	* config/ia64/hpux_longdouble.h (FIXUNS_TRUNCTFSI2_LIBCALL): New.
> 	(FIXUNS_TRUNCTFDI2_LIBCALL): New.
>	...

OK.

Jim