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re PR middle-end/56461 (GCC is leaking lots of memory)

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PR middle-end/56461
	* tree-vect-data-refs.c (vect_permute_store_chain): Avoid using copy
	method on dr_chain and result_chain.
	* tree-vect-stmts.c (vectorizable_store): Only call
	result_chain.create if j == 0.

From-SVN: r196396
This commit is contained in:
Jakub Jelinek 2013-03-01 23:54:39 +01:00 committed by Jakub Jelinek
parent 3b8af25b7a
commit b6b9227d52
3 changed files with 13 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,5 +1,11 @@
2013-03-01 Jakub Jelinek <jakub@redhat.com>
PR middle-end/56461
* tree-vect-data-refs.c (vect_permute_store_chain): Avoid using copy
method on dr_chain and result_chain.
* tree-vect-stmts.c (vectorizable_store): Only call
result_chain.create if j == 0.
PR middle-end/56461
* tree-vect-stmts.c (vect_create_vectorized_promotion_stmts): Call
vec_oprnds0->release (); rather than vec_oprnds0->truncate (0)

7
gcc/tree-vect-data-refs.c
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@ -4218,7 +4218,9 @@ vect_permute_store_chain (vec<tree> dr_chain,
unsigned int j, nelt = TYPE_VECTOR_SUBPARTS (vectype);
unsigned char *sel = XALLOCAVEC (unsigned char, nelt);
*result_chain = dr_chain.copy ();
result_chain->quick_grow (length);
memcpy (result_chain->address (), dr_chain.address (),
length * sizeof (tree));
for (i = 0, n = nelt / 2; i < n; i++)
{
@ -4259,7 +4261,8 @@ vect_permute_store_chain (vec<tree> dr_chain,
vect_finish_stmt_generation (stmt, perm_stmt, gsi);
(*result_chain)[2*j+1] = low;
}
dr_chain = result_chain->copy ();
memcpy (dr_chain.address (), result_chain->address (),
length * sizeof (tree));
}
}

3
gcc/tree-vect-stmts.c
View File

@ -4151,7 +4151,8 @@ vectorizable_store (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt,
new_stmt = NULL;
if (grouped_store)
{
result_chain.create (group_size);
if (j == 0)
result_chain.create (group_size);
/* Permute. */
vect_permute_store_chain (dr_chain, group_size, stmt, gsi,
&result_chain);