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* combine.c (combine_instructions): Use xmalloc instead of alloca. 

From-SVN: r30331
This commit is contained in:
Mark Mitchell 1999-11-01 22:42:01 +00:00 committed by Mark Mitchell
parent 9fd4e3280e
commit c05ddfa745
2 changed files with 31 additions and 16 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
Mon Nov 1 15:41:01 1999 Mark P. Mitchell <mark@codesourcery.com>
* combine.c (combine_instructions): Use xmalloc instead of alloca.
Mon Nov 1 13:22:30 1999 Richard Henderson <rth@cygnus.com> Mon Nov 1 13:22:30 1999 Richard Henderson <rth@cygnus.com>
* toplev.c (rest_of_compilation): Don't optimize the CFG * toplev.c (rest_of_compilation): Don't optimize the CFG

43
gcc/combine.c
View File

@ -499,25 +499,22 @@ combine_instructions (f, nregs)
combine_max_regno = nregs; combine_max_regno = nregs;
reg_nonzero_bits reg_nonzero_bits = ((unsigned HOST_WIDE_INT *)
= (unsigned HOST_WIDE_INT *) alloca (nregs * sizeof (HOST_WIDE_INT)); xcalloc (nregs, sizeof (unsigned HOST_WIDE_INT)));
reg_sign_bit_copies = (char *) alloca (nregs * sizeof (char)); reg_sign_bit_copies = (char *) xcalloc (nregs, sizeof (char));
bzero ((char *) reg_nonzero_bits, nregs * sizeof (HOST_WIDE_INT)); reg_last_death = (rtx *) xmalloc (nregs * sizeof (rtx));
bzero (reg_sign_bit_copies, nregs * sizeof (char)); reg_last_set = (rtx *) xmalloc (nregs * sizeof (rtx));
reg_last_set_value = (rtx *) xmalloc (nregs * sizeof (rtx));
reg_last_death = (rtx *) alloca (nregs * sizeof (rtx)); reg_last_set_table_tick = (int *) xmalloc (nregs * sizeof (int));
reg_last_set = (rtx *) alloca (nregs * sizeof (rtx)); reg_last_set_label = (int *) xmalloc (nregs * sizeof (int));
reg_last_set_value = (rtx *) alloca (nregs * sizeof (rtx)); reg_last_set_invalid = (char *) xmalloc (nregs * sizeof (char));
reg_last_set_table_tick = (int *) alloca (nregs * sizeof (int));
reg_last_set_label = (int *) alloca (nregs * sizeof (int));
reg_last_set_invalid = (char *) alloca (nregs * sizeof (char));
reg_last_set_mode reg_last_set_mode
= (enum machine_mode *) alloca (nregs * sizeof (enum machine_mode)); = (enum machine_mode *) xmalloc (nregs * sizeof (enum machine_mode));
reg_last_set_nonzero_bits reg_last_set_nonzero_bits
= (unsigned HOST_WIDE_INT *) alloca (nregs * sizeof (HOST_WIDE_INT)); = (unsigned HOST_WIDE_INT *) xmalloc (nregs * sizeof (HOST_WIDE_INT));
reg_last_set_sign_bit_copies reg_last_set_sign_bit_copies
= (char *) alloca (nregs * sizeof (char)); = (char *) xmalloc (nregs * sizeof (char));
init_reg_last_arrays (); init_reg_last_arrays ();
@ -529,7 +526,7 @@ combine_instructions (f, nregs)
if (INSN_UID (insn) > i) if (INSN_UID (insn) > i)
i = INSN_UID (insn); i = INSN_UID (insn);
uid_cuid = (int *) alloca ((i + 1) * sizeof (int)); uid_cuid = (int *) xmalloc ((i + 1) * sizeof (int));
max_uid_cuid = i; max_uid_cuid = i;
nonzero_bits_mode = mode_for_size (HOST_BITS_PER_WIDE_INT, MODE_INT, 0); nonzero_bits_mode = mode_for_size (HOST_BITS_PER_WIDE_INT, MODE_INT, 0);
@ -704,7 +701,21 @@ combine_instructions (f, nregs)
update_life_info (refresh_blocks, UPDATE_LIFE_GLOBAL_RM_NOTES, update_life_info (refresh_blocks, UPDATE_LIFE_GLOBAL_RM_NOTES,
PROP_DEATH_NOTES); PROP_DEATH_NOTES);
} }
/* Clean up. */
sbitmap_free (refresh_blocks); sbitmap_free (refresh_blocks);
free (reg_nonzero_bits);
free (reg_sign_bit_copies);
free (reg_last_death);
free (reg_last_set);
free (reg_last_set_value);
free (reg_last_set_table_tick);
free (reg_last_set_label);
free (reg_last_set_invalid);
free (reg_last_set_mode);
free (reg_last_set_nonzero_bits);
free (reg_last_set_sign_bit_copies);
free (uid_cuid);
total_attempts += combine_attempts; total_attempts += combine_attempts;
total_merges += combine_merges; total_merges += combine_merges;