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unroll.c (unroll_loop): Allocate memory for MAP using xcalloc. 

* unroll.c (unroll_loop): Allocate memory for MAP using xcalloc.
        Remove explicit zero initializations of entries within MAP.

From-SVN: r30337
This commit is contained in:
Jeffrey A Law 1999-11-02 06:39:04 +00:00 committed by Jeff Law
parent f6d204868a
commit d269eb53b1
2 changed files with 9 additions and 5 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Mon Nov 1 23:37:38 1999 Jeffrey A Law (law@cygnus.com)
* unroll.c (unroll_loop): Allocate memory for MAP using xcalloc.
Remove explicit zero initializations of entries within MAP.
Mon Nov 1 18:09:14 1999 Richard Henderson <rth@cygnus.com>
* reg-stack.c (convert_regs_1): Handle EH edges specially.

9
gcc/unroll.c
View File

@ -682,10 +682,11 @@ unroll_loop (loop_end, insn_count, loop_start, end_insert_before,
max_labelno = max_label_num ();
max_insnno = get_max_uid ();
map = (struct inline_remap *) xmalloc (sizeof (struct inline_remap));
/* Various paths through the unroll code may reach the "egress" label
without initializing fields within the map structure.
map->integrating = 0;
map->const_equiv_varray = 0;
To be safe, we use xcalloc to zero the memory. */
map = (struct inline_remap *) xcalloc (1, sizeof (struct inline_remap));
/* Allocate the label map. */
@ -695,8 +696,6 @@ unroll_loop (loop_end, insn_count, loop_start, end_insert_before,
local_label = (char *) xcalloc (max_labelno, sizeof (char));
}
else
map->label_map = 0;
/* Search the loop and mark all local labels, i.e. the ones which have to
be distinct labels when copied. For all labels which might be