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gimplify.c (lookup_tmp_var): Separate temporaries when not optimizing. 

* gimplify.c (lookup_tmp_var): Separate temporaries when not
	optimizing.

From-SVN: r86563
This commit is contained in:
Geoffrey Keating 2004-08-25 18:11:12 +00:00 committed by Geoffrey Keating
parent d711cf67a6
commit bbbb79d42a
2 changed files with 19 additions and 5 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2004-08-24 Geoffrey Keating <geoffk@apple.com>
* gimplify.c (lookup_tmp_var): Separate temporaries when not
optimizing.
2004-08-25 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
PR libstdc++/17005 (fix for HP-UX 11.11)

19
gcc/gimplify.c
View File

@ -117,8 +117,11 @@ push_gimplify_context (void)
abort ();
gimplify_ctxp
= (struct gimplify_ctx *) xcalloc (1, sizeof (struct gimplify_ctx));
gimplify_ctxp->temp_htab
= htab_create (1000, gimple_tree_hash, gimple_tree_eq, free);
if (optimize)
gimplify_ctxp->temp_htab
= htab_create (1000, gimple_tree_hash, gimple_tree_eq, free);
else
gimplify_ctxp->temp_htab = NULL;
}
/* Tear down a context for the gimplifier. If BODY is non-null, then
@ -142,12 +145,13 @@ pop_gimplify_context (tree body)
record_vars (gimplify_ctxp->temps);
#if 0
if (!quiet_flag)
if (!quiet_flag && optimize)
fprintf (stderr, " collisions: %f ",
htab_collisions (gimplify_ctxp->temp_htab));
#endif
htab_delete (gimplify_ctxp->temp_htab);
if (optimize)
htab_delete (gimplify_ctxp->temp_htab);
free (gimplify_ctxp);
gimplify_ctxp = NULL;
}
@ -409,7 +413,12 @@ lookup_tmp_var (tree val, bool is_formal)
{
tree ret;
if (!is_formal || TREE_SIDE_EFFECTS (val))
/* If not optimizing, never really reuse a temporary. local-alloc
won't allocate any variable that is used in more than one basic
block, which means it will go into memory, causing much extra
work in reload and final and poorer code generation, outweighing
the extra memory allocation here. */
if (!optimize || !is_formal || TREE_SIDE_EFFECTS (val))
ret = create_tmp_from_val (val);
else
{