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| author | Jan Hubicka <jh@suse.cz> | 2003-03-14 21:15:13 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2003-03-14 20:15:13 +0000 |
| commit | cd648cec5c78e596fc86e570f243dac6752ad764 (patch) | |
| tree | 3085a6e478e08536454831e0b1720bcba93526a0 /gcc/cselib.c | |
| parent | 82c34dcb178f76c9ce6c0a6b7fac79b3c6aaff8b (diff) | |
| download | gcc-cd648cec5c78e596fc86e570f243dac6752ad764.zip gcc-cd648cec5c78e596fc86e570f243dac6752ad764.tar.gz gcc-cd648cec5c78e596fc86e570f243dac6752ad764.tar.bz2 | |
cselib.c (clear_table): Do not take argument; always clear just used slots.
* cselib.c (clear_table): Do not take argument; always clear just
used slots.
(cselib_process_insn): Update call of clear_table
(cselib_init): Do not call clear_table.
(cselib_finish): Clear table.
* cse.c (count_reg_usage): Do not check side_effects_p.
* rtlanal.c (set_noop_p): Check side_effects_p only when set looks
like noop.
(find_reg_equal_equiv_note): Do not use find_reg_note.
From-SVN: r64369
Diffstat (limited to 'gcc/cselib.c')
| -rw-r--r-- | gcc/cselib.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/gcc/cselib.c b/gcc/cselib.c index 564afba..3aac058 100644 --- a/gcc/cselib.c +++ b/gcc/cselib.c @@ -49,7 +49,7 @@ static struct elt_loc_list *new_elt_loc_list PARAMS ((struct elt_loc_list *, static void unchain_one_value PARAMS ((cselib_val *)); static void unchain_one_elt_list PARAMS ((struct elt_list **)); static void unchain_one_elt_loc_list PARAMS ((struct elt_loc_list **)); -static void clear_table PARAMS ((int)); +static void clear_table PARAMS ((void)); static int discard_useless_locs PARAMS ((void **, void *)); static int discard_useless_values PARAMS ((void **, void *)); static void remove_useless_values PARAMS ((void)); @@ -224,17 +224,12 @@ unchain_one_value (v) which are known to have been used. */ static void -clear_table (clear_all) - int clear_all; +clear_table () { unsigned int i; - if (clear_all) - for (i = 0; i < cselib_nregs; i++) - REG_VALUES (i) = 0; - else - for (i = 0; i < VARRAY_ACTIVE_SIZE (used_regs); i++) - REG_VALUES (VARRAY_UINT (used_regs, i)) = 0; + for (i = 0; i < VARRAY_ACTIVE_SIZE (used_regs); i++) + REG_VALUES (VARRAY_UINT (used_regs, i)) = 0; max_value_regs = 0; @@ -1359,7 +1354,7 @@ cselib_process_insn (insn) && GET_CODE (PATTERN (insn)) == ASM_OPERANDS && MEM_VOLATILE_P (PATTERN (insn)))) { - clear_table (0); + clear_table (); return; } @@ -1437,8 +1432,6 @@ cselib_init () { reg_values = reg_values_old; used_regs = used_regs_old; - VARRAY_CLEAR (reg_values); - VARRAY_CLEAR (used_regs); } else { @@ -1447,7 +1440,6 @@ cselib_init () } hash_table = htab_create_ggc (31, get_value_hash, entry_and_rtx_equal_p, NULL); - clear_table (1); cselib_current_insn_in_libcall = false; } @@ -1456,6 +1448,7 @@ cselib_init () void cselib_finish () { + clear_table (); reg_values_old = reg_values; reg_values = 0; used_regs_old = used_regs; |