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Re: GCC trunk SPEC2000 performance


> Yes, that seems to be the same failure:
> /usr/src/SpecTests/d-permanent/i686/install-200206200731/bin/g77 -c -o apsi.o -O3 -fomit-frame-pointer -march=athlon -funroll-all-loops -fstrict-aliasing -malign-double -fprefetch-loop-arrays  apsi.f
> apsi.f: In subroutine `uvset':
> apsi.f:4327: internal compiler error: RTL flag check: REG_POINTER used with unexpected rtx code `mem' in copy_rtx_and_substitute, at integrate.c:2065
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
> specmake: *** [apsi.o] Error 1
Hmm, obvious fix appears to be the patch attached.  I am not at all sure
whether it is the sane fix, as I don't understand the difference between
first and second operand of addressof (need for the second operand).
I also can't test whether it works, as I don't have SPEC sources here.

Index: integrate.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/integrate.c,v
retrieving revision 1.197
diff -c -3 -p -r1.197 integrate.c
*** integrate.c	11 Jun 2002 12:21:46 -0000	1.197
--- integrate.c	20 Jun 2002 15:16:19 -0000
*************** copy_rtx_and_substitute (orig, map, for_
*** 2062,2068 ****
  	  RTX_UNCHANGING_P (map->reg_map[regno]) = RTX_UNCHANGING_P (temp);
  	  /* A reg with REG_FUNCTION_VALUE_P true will never reach here.  */
  
! 	  if (REG_POINTER (map->x_regno_reg_rtx[regno]))
  	    mark_reg_pointer (map->reg_map[regno],
  			      map->regno_pointer_align[regno]);
  	  regno = REGNO (map->reg_map[regno]);
--- 2062,2069 ----
  	  RTX_UNCHANGING_P (map->reg_map[regno]) = RTX_UNCHANGING_P (temp);
  	  /* A reg with REG_FUNCTION_VALUE_P true will never reach here.  */
  
! 	  if (REG_P (map->x_regno_reg_rtx[regno])
! 	      && REG_POINTER (map->x_regno_reg_rtx[regno]))
  	    mark_reg_pointer (map->reg_map[regno],
  			      map->regno_pointer_align[regno]);
  	  regno = REGNO (map->reg_map[regno]);


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