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gimple.c (iterative_hash_gimple_type): Simplify singleton case some more, fix final hash value of the non-singleton case. 

2011-05-17  Richard Guenther  <rguenther@suse.de>

	* gimple.c (iterative_hash_gimple_type): Simplify singleton
	case some more, fix final hash value of the non-singleton case.

From-SVN: r173829
This commit is contained in:
Richard Guenther 2011-05-17 12:39:50 +00:00 committed by Richard Biener
parent 3646134083
commit 008bad7a3e
2 changed files with 12 additions and 4 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2011-05-17 Richard Guenther <rguenther@suse.de>
* gimple.c (iterative_hash_gimple_type): Simplify singleton
case some more, fix final hash value of the non-singleton case.
2011-05-17 Richard Guenther <rguenther@suse.de>
PR bootstrap/49013

11
gcc/gimple.c
View File

@ -4213,25 +4213,24 @@ iterative_hash_gimple_type (tree type, hashval_t val,
if (state->low == state->dfsnum)
{
tree x;
struct sccs *cstate;
struct tree_int_map *m;
/* Pop off the SCC and set its hash values. */
x = VEC_pop (tree, *sccstack);
cstate = (struct sccs *)*pointer_map_contains (sccstate, x);
cstate->on_sccstack = false;
/* Optimize SCC size one. */
if (x == type)
{
state->on_sccstack = false;
m = ggc_alloc_cleared_tree_int_map ();
m->base.from = x;
m->to = cstate->u.hash;
m->to = v;
slot = htab_find_slot (type_hash_cache, m, INSERT);
gcc_assert (!*slot);
*slot = (void *) m;
}
else
{
struct sccs *cstate;
unsigned first, i, size, j;
struct type_hash_pair *pairs;
/* Pop off the SCC and build an array of type, hash pairs. */
@ -4241,6 +4240,8 @@ iterative_hash_gimple_type (tree type, hashval_t val,
size = VEC_length (tree, *sccstack) - first + 1;
pairs = XALLOCAVEC (struct type_hash_pair, size);
i = 0;
cstate = (struct sccs *)*pointer_map_contains (sccstate, x);
cstate->on_sccstack = false;
pairs[i].type = x;
pairs[i].hash = cstate->u.hash;
do
@ -4275,6 +4276,8 @@ iterative_hash_gimple_type (tree type, hashval_t val,
for (j = 0; pairs[j].hash != pairs[i].hash; ++j)
hash = iterative_hash_hashval_t (pairs[j].hash, hash);
m->to = hash;
if (pairs[i].type == type)
v = hash;
slot = htab_find_slot (type_hash_cache, m, INSERT);
gcc_assert (!*slot);
*slot = (void *) m;