DJ Delorie <[EMAIL PROTECTED]> writes: > Any reason why we blindly assume destination registers will be hard > registers here? > > Index: regmove.c > =================================================================== > RCS file: /cvs/gcc/gcc/gcc/regmove.c,v > retrieving revision 1.173 > diff -p -U3 -r1.173 regmove.c > --- regmove.c 25 Aug 2005 06:44:09 -0000 1.173 > +++ regmove.c 14 Sep 2005 00:27:34 -0000 > @@ -1020,7 +1020,8 @@ fixup_match_2 (rtx insn, rtx dst, rtx sr > if (REG_N_CALLS_CROSSED (REGNO (src)) == 0) > break; > > - if (call_used_regs [REGNO (dst)] > + if ((REGNO(dst) < FIRST_PSEUDO_REGISTER > + && call_used_regs [REGNO (dst)]) > || find_reg_fusage (p, CLOBBER, dst)) > break; > }
The destination register which is set by a CALL will normally be FUNCTION_VALUE, which is normally a hard register. Do you have an example in which something else happens? Ian
