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loop.c (loop_invariant_p, [...]): Revert last change.

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2005-05-31  Pat Haugen  <pthaugen@us.ibm.com>

        * loop.c (loop_invariant_p, valid_initial_value_p): Revert last
        change.

From-SVN: r100408
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Pat Haugen 2005-05-31 21:29:05 +00:00 committed by David Edelsohn
parent 87d33b419b
commit ec22e73ba8
2 changed files with 7 additions and 4 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2005-05-31 Pat Haugen <pthaugen@us.ibm.com>
* loop.c (loop_invariant_p, valid_initial_value_p): Revert last
change.
2005-05-31 Andrew Pinski <pinskia@physics.uc.edu>
PR middle-end/20931

6
gcc/loop.c
View File

@ -3645,8 +3645,7 @@ loop_invariant_p (const struct loop *loop, rtx x)
return 1;
if (LOOP_INFO (loop)->has_call
&& REGNO (x) < FIRST_PSEUDO_REGISTER
&& TEST_HARD_REG_BIT (regs_invalidated_by_call, REGNO (x)))
&& REGNO (x) < FIRST_PSEUDO_REGISTER && call_used_regs[REGNO (x)])
return 0;
/* Out-of-range regs can occur when we are called from unrolling.
@ -6720,8 +6719,7 @@ valid_initial_value_p (rtx x, rtx insn, int call_seen, rtx loop_start)
some machines, don't use any hard registers at all. */
if (REGNO (x) < FIRST_PSEUDO_REGISTER
&& (SMALL_REGISTER_CLASSES
|| (call_seen
&& TEST_HARD_REG_BIT (regs_invalidated_by_call, REGNO (x)))))
|| (call_seen && call_used_regs[REGNO (x)])))
return 0;
/* Don't use registers that have been clobbered before the start of the