+2004-03-04 Jan Hubicka <jh@suse.cz>
+
+ * cfgcleanup.c (thread_jump): Update call of cselib_init.
+ * cselib.c (cselib_record_memory): New static variable.
+ (cselib_lookup_mem, cselib_record_set, cselib_record_sets):
+ Give up on memories when asked for.
+ (cselib_init): Accept new argument.
+ * cselib.h (cselib_init): Update prototype.
+ * gcse.c (local_cprop_pass): Update call of cselib_init.
+ * loop.c (load_mems): Update call of cselib_init.
+ * postreload.c (reload_cse_regs_1): Update call of cselib_init.
+ * sched-deps.c (sched_analyze): Update call of cselib_init.
+
2004-03-04 David Edelsohn <edelsohn@gnu.org>
GP <gp@qnx.com>
#include "params.h"
#include "alloc-pool.h"
+static bool cselib_record_memory;
static int entry_and_rtx_equal_p (const void *, const void *);
static hashval_t get_value_hash (const void *);
static struct elt_list *new_elt_list (struct elt_list *, cselib_val *);
struct elt_list *l;
if (MEM_VOLATILE_P (x) || mode == BLKmode
+ || !cselib_record_memory
|| (FLOAT_MODE_P (mode) && flag_float_store))
return 0;
n_useless_values--;
src_elt->locs = new_elt_loc_list (src_elt->locs, dest);
}
- else if (GET_CODE (dest) == MEM && dest_addr_elt != 0)
+ else if (GET_CODE (dest) == MEM && dest_addr_elt != 0
+ && cselib_record_memory)
{
if (src_elt->locs == 0)
n_useless_values--;
sets[i].dest = dest = XEXP (dest, 0);
/* We don't know how to record anything but REG or MEM. */
- if (GET_CODE (dest) == REG || GET_CODE (dest) == MEM)
+ if (GET_CODE (dest) == REG
+ || (GET_CODE (dest) == MEM && cselib_record_memory))
{
rtx src = sets[i].src;
if (cond)
for (i = 0; i < n_sets; i++)
{
rtx dest = sets[i].dest;
- if (GET_CODE (dest) == REG || GET_CODE (dest) == MEM)
+ if (GET_CODE (dest) == REG
+ || (GET_CODE (dest) == MEM && cselib_record_memory))
cselib_record_set (dest, sets[i].src_elt, sets[i].dest_addr_elt);
}
}
init_alias_analysis. */
void
-cselib_init (void)
+cselib_init (bool record_memory)
{
elt_list_pool = create_alloc_pool ("elt_list",
sizeof (struct elt_list), 10);
sizeof (cselib_val), 10);
value_pool = create_alloc_pool ("value",
RTX_SIZE (VALUE), 100);
+ cselib_record_memory = record_memory;
/* This is only created once. */
if (! callmem)
callmem = gen_rtx_MEM (BLKmode, const0_rtx);
};
extern cselib_val *cselib_lookup (rtx, enum machine_mode, int);
-extern void cselib_init (void);
+extern void cselib_init (bool record_memory);
extern void cselib_finish (void);
extern void cselib_process_insn (rtx);
extern enum machine_mode cselib_reg_set_mode (rtx);