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re PR tree-optimization/33856 (Segfault in create_data_ref/compute_data_dependences_for_loop) 

PR tree-optimization/33856
	* tree-data-ref.c (get_references_in_stmt): Don't add
	REFERENCE_CLASS_P trees to references vector if get_base_address
	returns NULL on them.

	* gcc.c-torture/compile/20071027-1.c: New test.

From-SVN: r129897
This commit is contained in:
Jakub Jelinek 2007-11-05 09:44:23 +01:00 committed by Jakub Jelinek
parent f370e66bb8
commit 0976ffb63f
4 changed files with 38 additions and 3 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2007-11-05 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/33856
* tree-data-ref.c (get_references_in_stmt): Don't add
REFERENCE_CLASS_P trees to references vector if get_base_address
returns NULL on them.
2007-11-05 Alexandre Oliva <aoliva@redhat.com>
* cfg.c (dump_cfg_bb_info): Update bb_bitnames to match enum.

3
gcc/testsuite/ChangeLog
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@ -1,5 +1,8 @@
2007-11-05 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/33856
* gcc.c-torture/compile/20071027-1.c: New test.
PR c++/33836
* g++.dg/ext/label10.C: New test.

25
gcc/testsuite/gcc.c-torture/compile/20071027-1.c Normal file
View File

@ -0,0 +1,25 @@
/* PR tree-optimization/33856 */
/* Testcase by Martin Michlmayr <tbm@cyrius.com> */
typedef struct z_key
{
int key;
int mask;
} z_key;
typedef struct picture_size
{
z_key key;
} picture_size;
void picture_size_new (picture_size *ps)
{
z_key key;
ps->key = key;
}
void picture_sizes_load_default (picture_size *ps)
{
int i;
for (i = 0; i < 5; ++i)
picture_size_new (ps);
}

6
gcc/tree-data-ref.c
View File

@ -3913,7 +3913,7 @@ get_references_in_stmt (tree stmt, VEC (data_ref_loc, heap) **references)
op1 = &GIMPLE_STMT_OPERAND (stmt, 1);
if (DECL_P (*op1)
|| REFERENCE_CLASS_P (*op1))
|| (REFERENCE_CLASS_P (*op1) && get_base_address (*op1)))
{
ref = VEC_safe_push (data_ref_loc, heap, *references, NULL);
ref->pos = op1;
@ -3921,7 +3921,7 @@ get_references_in_stmt (tree stmt, VEC (data_ref_loc, heap) **references)
}
if (DECL_P (*op0)
|| REFERENCE_CLASS_P (*op0))
|| (REFERENCE_CLASS_P (*op0) && get_base_address (*op0)))
{
ref = VEC_safe_push (data_ref_loc, heap, *references, NULL);
ref->pos = op0;
@ -3938,7 +3938,7 @@ get_references_in_stmt (tree stmt, VEC (data_ref_loc, heap) **references)
op0 = &CALL_EXPR_ARG (call, i);
if (DECL_P (*op0)
|| REFERENCE_CLASS_P (*op0))
|| (REFERENCE_CLASS_P (*op0) && get_base_address (*op0)))
{
ref = VEC_safe_push (data_ref_loc, heap, *references, NULL);
ref->pos = op0;