This patch makes vector_alignment_reachable_p cope with variable-length
vectors.
2018-01-03 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the
number of units as polynomial.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r256132
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
+ * tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the
+ number of units as polynomial.
+
+2018-01-03 Richard Sandiford <richard.sandiford@linaro.org>
+ Alan Hayward <alan.hayward@arm.com>
+ David Sherwood <david.sherwood@arm.com>
+
* target.h (vector_sizes, auto_vector_sizes): New typedefs.
* target.def (autovectorize_vector_sizes): Return the vector sizes
by pointer, using vector_sizes rather than a bitmask.
* target.h (vector_sizes, auto_vector_sizes): New typedefs.
* target.def (autovectorize_vector_sizes): Return the vector sizes
by pointer, using vector_sizes rather than a bitmask.
the prolog loop ({VF - misalignment}), is a multiple of the
number of the interleaved accesses. */
int elem_size, mis_in_elements;
the prolog loop ({VF - misalignment}), is a multiple of the
number of the interleaved accesses. */
int elem_size, mis_in_elements;
- int nelements = TYPE_VECTOR_SUBPARTS (vectype);
/* FORNOW: handle only known alignment. */
if (!known_alignment_for_access_p (dr))
return false;
/* FORNOW: handle only known alignment. */
if (!known_alignment_for_access_p (dr))
return false;
- elem_size = GET_MODE_SIZE (TYPE_MODE (vectype)) / nelements;
+ poly_uint64 nelements = TYPE_VECTOR_SUBPARTS (vectype);
+ poly_uint64 vector_size = GET_MODE_SIZE (TYPE_MODE (vectype));
+ elem_size = vector_element_size (vector_size, nelements);
mis_in_elements = DR_MISALIGNMENT (dr) / elem_size;
mis_in_elements = DR_MISALIGNMENT (dr) / elem_size;
- if ((nelements - mis_in_elements) % GROUP_SIZE (stmt_info))
+ if (!multiple_p (nelements - mis_in_elements, GROUP_SIZE (stmt_info)))