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re PR tree-optimization/33866 (ICE in vect_get_vec_def_for_stmt_copy, at tree-vect-transform.c:1937)

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PR tree-optimization/33866
	* tree-vect-transform.c (vectorizable_store): Check operands of all the
	stmts in the group of strided accesses. Get def stmt type for each store
	in the group and pass it to vect_get_vec_def_for_stmt_copy ().

From-SVN: r129623
This commit is contained in:
Ira Rosen 2007-10-25 07:25:55 +00:00
parent e2520c41ed
commit 0bf2cf8907
4 changed files with 68 additions and 5 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2007-10-25 Ira Rosen <irar@il.ibm.com>
PR tree-optimization/33866
* tree-vect-transform.c (vectorizable_store): Check operands of all the
stmts in the group of strided accesses. Get def stmt type for each store
in the group and pass it to vect_get_vec_def_for_stmt_copy ().
2007-10-25 Uros Bizjak <ubizjak@gmail.com>
* config/i386/constraints.md (Y0): Rename register constraint to Yz.

6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2007-10-25 Martin Michlmayr <tbm@cyrius.com>
Ira Rosen <irar@il.ibm.com>
PR tree-optimization/33866
* gcc.dg/vect/pr33866.c: New testcase.
2007-10-24 Uros Bizjak <ubizjak@gmail.com>
* gcc.target/i386/pr11001-*.c: Remove -m32 from compile flags.

31
gcc/testsuite/gcc.dg/vect/pr33866.c Normal file
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@ -0,0 +1,31 @@
/* Testcase by Martin Michlmayr <tbm@cyrius.com> */
/* { dg-do compile } */
typedef struct
{
long *coords;
}
fill_iter_info;
extern H5Diterate (fill_iter_info *);
void test_select_fill_hyper_simple (long *offset)
{
long start[2];
int num_points;
long points[16][2];
fill_iter_info iter_info;
int i, j;
iter_info.coords = (long *) points;
for (i = 0, num_points = 0; j < (int) start[1]; j++, num_points++)
{
points[num_points][0] = i + start[0];
points[num_points][1] = j + start[1];
}
H5Diterate (&iter_info);
}
/* Needs interleaving support. */
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_interleave } } } } */
/* { dg-final { cleanup-tree-dump "vect" } } */

29
gcc/tree-vect-transform.c
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@ -4578,7 +4578,7 @@ vectorizable_store (tree stmt, block_stmt_iterator *bsi, tree *vec_stmt,
int nunits = TYPE_VECTOR_SUBPARTS (vectype);
int ncopies = LOOP_VINFO_VECT_FACTOR (loop_vinfo) / nunits;
int j;
tree next_stmt, first_stmt;
tree next_stmt, first_stmt = NULL_TREE;
bool strided_store = false;
unsigned int group_size, i;
VEC(tree,heap) *dr_chain = NULL, *oprnds = NULL, *result_chain = NULL;
@ -4640,9 +4640,28 @@ vectorizable_store (tree stmt, block_stmt_iterator *bsi, tree *vec_stmt,
if (STMT_VINFO_STRIDED_ACCESS (stmt_info))
{
strided_store = true;
first_stmt = DR_GROUP_FIRST_DR (stmt_info);
if (!vect_strided_store_supported (vectype)
&& !PURE_SLP_STMT (stmt_info) && !slp)
return false;
return false;
if (first_stmt == stmt)
{
/* STMT is the leader of the group. Check the operands of all the
stmts of the group. */
next_stmt = DR_GROUP_NEXT_DR (stmt_info);
while (next_stmt)
{
op = GIMPLE_STMT_OPERAND (next_stmt, 1);
if (!vect_is_simple_use (op, loop_vinfo, &def_stmt, &def, &dt))
{
if (vect_print_dump_info (REPORT_DETAILS))
fprintf (vect_dump, "use not simple.");
return false;
}
next_stmt = DR_GROUP_NEXT_DR (vinfo_for_stmt (next_stmt));
}
}
}
if (!vec_stmt) /* transformation not required. */
@ -4657,7 +4676,6 @@ vectorizable_store (tree stmt, block_stmt_iterator *bsi, tree *vec_stmt,
if (strided_store)
{
first_stmt = DR_GROUP_FIRST_DR (stmt_info);
first_dr = STMT_VINFO_DATA_REF (vinfo_for_stmt (first_stmt));
group_size = DR_GROUP_SIZE (vinfo_for_stmt (first_stmt));
@ -4803,8 +4821,9 @@ vectorizable_store (tree stmt, block_stmt_iterator *bsi, tree *vec_stmt,
OPRNDS are of size 1. */
for (i = 0; i < group_size; i++)
{
vec_oprnd = vect_get_vec_def_for_stmt_copy (dt,
VEC_index (tree, oprnds, i));
op = VEC_index (tree, oprnds, i);
vect_is_simple_use (op, loop_vinfo, &def_stmt, &def, &dt);
vec_oprnd = vect_get_vec_def_for_stmt_copy (dt, op);
VEC_replace(tree, dr_chain, i, vec_oprnd);
VEC_replace(tree, oprnds, i, vec_oprnd);
}