This patch is the one I promised earlier today; it removes a
dependence on whether or not -g is present when scheduling. Since
LUIDs are used to determine when a region is too big for interblock
scheduling, -O -g was more pessimistic than -O.
--
Mark Mitchell mark@codesourcery.com
CodeSourcery, LLC http://www.codesourcery.com
Sun Oct 24 19:33:24 1999 Mark P. Mitchell <mark@codesourcery.com>
* haifa-sched.c (schedule_insns): Don't assign LUIDs differently
depending on whether or not line-number notes are present.
Index: haifa-sched.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/haifa-sched.c,v
retrieving revision 1.122
diff -c -p -r1.122 haifa-sched.c
*** haifa-sched.c 1999/10/20 14:04:01 1.122
--- haifa-sched.c 1999/10/25 01:33:01
*************** schedule_insns (dump_file)
*** 6858,6864 ****
for (b = 0; b < n_basic_blocks; b++)
for (insn = BLOCK_HEAD (b);; insn = NEXT_INSN (insn))
{
! INSN_LUID (insn) = luid++;
if (insn == BLOCK_END (b))
break;
}
--- 6858,6873 ----
for (b = 0; b < n_basic_blocks; b++)
for (insn = BLOCK_HEAD (b);; insn = NEXT_INSN (insn))
{
! INSN_LUID (insn) = luid;
!
! /* Increment the next luid, unless this is a note. We don't
! really need separate IDs for notes and we don't want to
! schedule differently depending on whether or not there are
! line-number notes, i.e., depending on whether or not we're
! generating debugging information. */
! if (GET_CODE (insn) != NOTE)
! ++luid;
!
if (insn == BLOCK_END (b))
break;
}