r255935 - in /trunk/gcc: ChangeLog tree-vect-da...

[rsandifo@gcc.gnu.org]

Author: rsandifo
Date: Thu Dec 21 07:02:53 2017
New Revision: 255935

URL: https://gcc.gnu.org/viewcvs?rev=255935&root=gcc&view=rev
Log:
poly_int: compute_data_ref_alignment

This patch makes vect_compute_data_ref_alignment treat DR_INIT as a
poly_int and handles cases in which the calculated misalignment might
not be constant.

2017-12-21  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

gcc/
	* tree-vect-data-refs.c (vect_compute_data_ref_alignment):
	Treat drb->init as a poly_int.  Fail if its misalignment wrt
	vector_alignment isn't known.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-vect-data-refs.c