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re PR tree-optimization/50014 (Assertion failed in vect_get_vec_def_for_stmt_copy)

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PR tree-optimization/50014
        * tree-vect-loop.c (vectorizable_reduction): Get def type before
        calling vect_get_vec_def_for_stmt_copy ().

From-SVN: r177581
This commit is contained in:
Ira Rosen 2011-08-09 06:02:00 +00:00 • committed by Ira Rosen
parent 4869704e21
commit 1684ca6b9b
4 changed files with 38 additions and 5 deletions
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6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2011-08-09 Ira Rosen <ira.rosen@linaro.org>
PR tree-optimization/50014
* tree-vect-loop.c (vectorizable_reduction): Get def type before
calling vect_get_vec_def_for_stmt_copy ().
2011-08-08 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/49990

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2011-08-09 Ira Rosen <ira.rosen@linaro.org>
PR tree-optimization/50014
* gcc.dg/vect/pr50014.c: New test.
2011-08-08 Martin Jambor <mjambor@suse.cz>
PR middle-end/49923

16
gcc/testsuite/gcc.dg/vect/pr50014.c Normal file
View file

@ -0,0 +1,16 @@
/* { dg-do compile } */
/* { dg-require-effective-target vect_int } */
int f(unsigned char *s, int n)
{
int sum = 0;
int i;
for (i = 0; i < n; i++)
sum += 256 * s[i];
return sum;
}
/* { dg-final { cleanup-tree-dump "vect" } } */

16
gcc/tree-vect-loop.c
View file

@ -4318,7 +4318,7 @@ vectorizable_reduction (gimple stmt, gimple_stmt_iterator *gsi,
VEC (tree, heap) *vec_oprnds0 = NULL, *vec_oprnds1 = NULL, *vect_defs = NULL;
VEC (gimple, heap) *phis = NULL;
int vec_num;
tree def0, def1, tem;
tree def0, def1, tem, op0, op1 = NULL_TREE;
/* In case of reduction chain we switch to the first stmt in the chain, but
we don't update STMT_INFO, since only the last stmt is marked as reduction
@ -4775,8 +4775,6 @@ vectorizable_reduction (gimple stmt, gimple_stmt_iterator *gsi,
/* Handle uses. */
if (j == 0)
{
tree op0, op1 = NULL_TREE;
op0 = ops[!reduc_index];
if (op_type == ternary_op)
{
@ -4806,11 +4804,19 @@ vectorizable_reduction (gimple stmt, gimple_stmt_iterator *gsi,
{
if (!slp_node)
{
enum vect_def_type dt = vect_unknown_def_type; /* Dummy */
loop_vec_def0 = vect_get_vec_def_for_stmt_copy (dt, loop_vec_def0);
enum vect_def_type dt;
gimple dummy_stmt;
tree dummy;
vect_is_simple_use (ops[!reduc_index], loop_vinfo, NULL,
&dummy_stmt, &dummy, &dt);
loop_vec_def0 = vect_get_vec_def_for_stmt_copy (dt,
loop_vec_def0);
VEC_replace (tree, vec_oprnds0, 0, loop_vec_def0);
if (op_type == ternary_op)
{
vect_is_simple_use (op1, loop_vinfo, NULL, &dummy_stmt,
&dummy, &dt);
loop_vec_def1 = vect_get_vec_def_for_stmt_copy (dt,
loop_vec_def1);
VEC_replace (tree, vec_oprnds1, 0, loop_vec_def1);