+2018-08-22 Richard Sandiford <richard.sandiford@arm.com>
+
+ * tree-vect-stmts.c (get_group_load_store_type)
+ (get_load_store_type): Only test STMT_VINFO_STRIDED_P for the
+ first statement in a group.
+
2018-08-22 Iain Sandoe <iain@sandoe.co.uk>
* config/darwin.h (LINK_COMMAND_SPEC_A): Sync LTO options with
/* There can only be a gap at the end of the group if the stride is
known at compile time. */
- gcc_assert (!STMT_VINFO_STRIDED_P (stmt_info) || gap == 0);
+ gcc_assert (!STMT_VINFO_STRIDED_P (first_stmt_info) || gap == 0);
/* Stores can't yet have gaps. */
gcc_assert (slp || vls_type == VLS_LOAD || gap == 0);
if (slp)
{
- if (STMT_VINFO_STRIDED_P (stmt_info))
+ if (STMT_VINFO_STRIDED_P (first_stmt_info))
{
/* Try to use consecutive accesses of DR_GROUP_SIZE elements,
separated by the stride, until we have a complete vector.
/ vect_get_scalar_dr_size (first_dr_info)))
would_overrun_p = false;
- if (!STMT_VINFO_STRIDED_P (stmt_info)
+ if (!STMT_VINFO_STRIDED_P (first_stmt_info)
&& (can_overrun_p || !would_overrun_p)
&& compare_step_with_zero (stmt_info) > 0)
{
/* FIXME: At the moment the cost model seems to underestimate the
cost of using elementwise accesses. This check preserves the
traditional behavior until that can be fixed. */
+ stmt_vec_info first_stmt_info = DR_GROUP_FIRST_ELEMENT (stmt_info);
+ if (!first_stmt_info)
+ first_stmt_info = stmt_info;
if (*memory_access_type == VMAT_ELEMENTWISE
- && !STMT_VINFO_STRIDED_P (stmt_info)
+ && !STMT_VINFO_STRIDED_P (first_stmt_info)
&& !(stmt_info == DR_GROUP_FIRST_ELEMENT (stmt_info)
&& !DR_GROUP_NEXT_ELEMENT (stmt_info)
&& !pow2p_hwi (DR_GROUP_SIZE (stmt_info))))