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loop.c (combine_movables): Turn off combination until move_movables validation bugs are fixed.

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* loop.c (combine_movables): Turn off combination until
        move_movables validation bugs are fixed.

From-SVN: r46995
This commit is contained in:
Richard Henderson 2001-11-13 16:15:30 -08:00 • committed by Richard Henderson
parent f9d44b00b6
commit 7c38084308
2 changed files with 9 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2001-11-13 Richard Henderson <rth@redhat.com>
* loop.c (combine_movables): Turn off combination until
move_movables validation bugs are fixed.
2001-11-13 DJ Delorie <dj@redhat.com>
* config.gcc (powerpc|rs6000): Set default cpp options based

5
gcc/loop.c
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@ -1346,7 +1346,10 @@ combine_movables (movables, regs)
/* We want later insns to match the first one. Don't make the first
one match any later ones. So start this loop at m->next. */
for (m1 = m->next; m1; m1 = m1->next)
if (m != m1 && m1->match == 0
/* ??? HACK! move_movables does not verify that the replacement
is valid, which can have disasterous effects with hard regs
and match_dup. Turn combination off for now. */
if (0 && m != m1 && m1->match == 0
&& regs->array[m1->regno].n_times_set == 1
/* A reg used outside the loop mustn't be eliminated. */
&& !m1->global