------- Additional Comments From uweigand at gcc dot gnu dot org 2004-10-25 16:20
-------
Does this patch help?
Index: gcc/simplify-rtx.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/simplify-rtx.c,v
retrieving revision 1.206
diff -c -p -r1.206 simplify-rtx.c
*** gcc/simplify-rtx.c 18 Oct 2004 18:46:06 -0000 1.206
--- gcc/simplify-rtx.c 25 Oct 2004 16:17:42 -0000
*************** simplify_gen_subreg (enum machine_mode o
*** 3789,3795 ****
if (newx)
return newx;
! if (GET_CODE (op) == SUBREG || GET_MODE (op) == VOIDmode)
return NULL_RTX;
return gen_rtx_SUBREG (outermode, op, byte);
--- 3789,3796 ----
if (newx)
return newx;
! if (GET_CODE (op) == SUBREG || GET_MODE (op) == VOIDmode
! || (REG_P (op) && REGNO (op) < FIRST_PSEUDO_REGISTER))
return NULL_RTX;
return gen_rtx_SUBREG (outermode, op, byte);
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15286
