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(secondary_memlocs_elim): Now one per mode per operand. 

(get_secondary_mem, combine_reloads): Reflect changed var above.
(clear_secondary_mem): Use bzero.

From-SVN: r3915
This commit is contained in:
Richard Kenner 1993-03-29 16:39:58 -05:00
parent 7967c666c2
commit 77545d45a3
1 changed files with 13 additions and 16 deletions
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29
gcc/reload.c
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@ -226,7 +226,7 @@ static int n_memlocs;
reload each. */
static rtx secondary_memlocs[NUM_MACHINE_MODES];
static rtx secondary_memlocs_elim[MAX_RECOG_OPERANDS];
static rtx secondary_memlocs_elim[NUM_MACHINE_MODES][MAX_RECOG_OPERANDS];
#endif
/* The instruction we are doing reloads for;
@ -434,9 +434,9 @@ get_secondary_mem (x, mode, opnum, type)
if (GET_MODE_BITSIZE (mode) < BITS_PER_WORD)
mode = mode_for_size (BITS_PER_WORD, GET_MODE_CLASS (mode), 0);
/* If we already have made a MEM for this operand, return it. */
if (secondary_memlocs_elim[opnum] != 0)
return secondary_memlocs_elim[opnum];
/* If we already have made a MEM for this operand in MODE, return it. */
if (secondary_memlocs_elim[(int) mode][opnum] != 0)
return secondary_memlocs_elim[(int) mode][opnum];
/* If this is the first time we've tried to get a MEM for this mode,
allocate a new one. `something_changed' in reload will get set
@ -478,7 +478,7 @@ get_secondary_mem (x, mode, opnum, type)
opnum, type, 0);
}
secondary_memlocs_elim[opnum] = loc;
secondary_memlocs_elim[(int) mode][opnum] = loc;
return loc;
}
@ -487,10 +487,7 @@ get_secondary_mem (x, mode, opnum, type)
void
clear_secondary_mem ()
{
int i;
for (i = 0; i < NUM_MACHINE_MODES; i++)
secondary_memlocs[i] = 0;
bzero (secondary_memlocs, sizeof secondary_memlocs);
}
#endif /* SECONDARY_MEMORY_NEEDED */
@ -1385,10 +1382,10 @@ combine_reloads ()
|| reload_secondary_reload[output_reload] == -1)
#ifdef SECONDARY_MEMORY_NEEDED
/* Likewise for different secondary memory locations. */
&& (secondary_memlocs_elim[reload_opnum[i]] == 0
|| secondary_memlocs_elim[reload_opnum[output_reload]] == 0
|| rtx_equal_p (secondary_memlocs_elim[reload_opnum[i]],
secondary_memlocs_elim[reload_opnum[output_reload]]))
&& (secondary_memlocs_elim[(int) reload_outmode[output_reload]][reload_opnum[i]] == 0
|| secondary_memlocs_elim[(int) reload_outmode[output_reload]][reload_opnum[output_reload]] == 0
|| rtx_equal_p (secondary_memlocs_elim[(int) reload_outmode[output_reload]][reload_opnum[i]],
secondary_memlocs_elim[(int) reload_outmode[output_reload]][reload_opnum[output_reload]]))
#endif
#ifdef SMALL_REGISTER_CLASSES
&& reload_reg_class[i] == reload_reg_class[output_reload]
@ -1437,9 +1434,9 @@ combine_reloads ()
reload_secondary_reload[i] = reload_secondary_reload[output_reload];
#ifdef SECONDARY_MEMORY_NEEDED
/* Copy any secondary MEM. */
if (secondary_memlocs_elim[reload_opnum[output_reload]] != 0)
secondary_memlocs_elim[reload_opnum[i]]
= secondary_memlocs_elim[reload_opnum[output_reload]];
if (secondary_memlocs_elim[(int) reload_outmode[output_reload]][reload_opnum[output_reload]] != 0)
secondary_memlocs_elim[(int) reload_outmode[output_reload]][reload_opnum[i]]
= secondary_memlocs_elim[(int) reload_outmode[output_reload]][reload_opnum[output_reload]];
#endif
/* If required, minimize the register class. */
if (reg_class_subset_p (reload_reg_class[output_reload],