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loop.c: Disable recent loop changes.

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* loop.c: Disable recent loop changes.  Temporary as Joern
        continues to fix problems.

From-SVN: r24916
This commit is contained in:
Jeffrey A Law 1999-01-30 07:32:56 +00:00 • committed by Jeff Law
parent 53eae3acff
commit 9eab30bcdc
2 changed files with 10 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Sat Jan 30 08:27:23 1999 Jeffrey A Law (law@cygnus.com)
* loop.c: Disable recent loop changes. Temporary as Joern
continues to fix problems.
Sat Jan 30 03:24:37 1999 J"orn Rennecke <amylaar@cygnus.co.uk>
* loop.c (strength_reduce): Size reg_map according to reg_iv_type.

6
gcc/loop.c
View file

@ -4101,7 +4101,8 @@ strength_reduce (scan_start, end, loop_top, insn_count,
first_increment_giv = max_reg_num ();
for (n_extra_increment = 0, bl = loop_iv_list; bl; bl = bl->next)
n_extra_increment += bl->biv_count - 1;
if (n_extra_increment)
/* XXX Temporary. */
if (0 && n_extra_increment)
{
int nregs = first_increment_giv + n_extra_increment;
@ -4587,6 +4588,8 @@ strength_reduce (scan_start, end, loop_top, insn_count,
}
}
#if 0
/* XXX Temporary. */
/* Now that we know which givs will be reduced, try to rearrange the
combinations to reduce register pressure.
recombine_givs calls find_life_end, which needs reg_iv_type and
@ -4605,6 +4608,7 @@ strength_reduce (scan_start, end, loop_top, insn_count,
VARRAY_GROW (reg_iv_info, nregs);
}
recombine_givs (bl, loop_start, loop_end, unroll_p);
#endif
/* Reduce each giv that we decided to reduce. */