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cse.c (max_insn_uid): New variable.

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* cse.c (max_insn_uid): New variable.
        (invalidate): Remove CYGNUS LOCAL patch.
        (cse_around_loop): Use max_insn_uid.
        (cse_main): Set max_insn_uid.

From-SVN: r17231
This commit is contained in:
Jim Wilson 1997-12-24 22:54:37 +00:00 • committed by Jeff Law
parent d9a4ee007b
commit 556c714b3d
2 changed files with 19 additions and 1 deletions
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5
gcc/ChangeLog
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@ -4,6 +4,11 @@ Wed Dec 24 23:33:17 1997 Jeffrey A Law (law@cygnus.com)
Wed Dec 24 23:12:14 1997 Jim Wilson <wilson@cygnus.com>
* cse.c (max_insn_uid): New variable.
(invalidate): Remove CYGNUS LOCAL patch.
(cse_around_loop): Use max_insn_uid.
(cse_main): Set max_insn_uid.
* abi64.h (LONG_MAX_SPEC): Check MIPS_ABI_DEFAULT and TARGET_DEFAULT,
and define __LONG_MAX__ appropriately. Add support for -mabi=X,
-mlong64, and -mgp{32,64} options.

15
gcc/cse.c
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@ -193,6 +193,11 @@ Related expressions:
static int max_reg;
/* One plus largest instruction UID used in this function at time of
cse_main call. */
static int max_insn_uid;
/* Length of vectors indexed by quantity number.
We know in advance we will not need a quantity number this big. */
@ -7798,10 +7803,16 @@ cse_around_loop (loop_start)
The only thing we do with SET_DEST is invalidate entries, so we
can safely process each SET in order. It is slightly less efficient
to do so, but we only want to handle the most common cases. */
to do so, but we only want to handle the most common cases.
The gen_move_insn call in cse_set_around_loop may create new pseudos.
These pseudos won't have valid entries in any of the tables indexed
by register number, such as reg_qty. We avoid out-of-range array
accesses by not processing any instructions created after cse started. */
for (insn = NEXT_INSN (loop_start);
GET_CODE (insn) != CALL_INSN && GET_CODE (insn) != CODE_LABEL
&& INSN_UID (insn) < max_insn_uid
&& ! (GET_CODE (insn) == NOTE
&& NOTE_LINE_NUMBER (insn) == NOTE_INSN_LOOP_END);
insn = NEXT_INSN (insn))
@ -8248,6 +8259,8 @@ cse_main (f, nregs, after_loop, file)
max_reg = nregs;
max_insn_uid = get_max_uid ();
all_minus_one = (int *) alloca (nregs * sizeof (int));
consec_ints = (int *) alloca (nregs * sizeof (int));