r256158 - in /trunk/gcc: ChangeLog lra-constrai...

[rsandifo@gcc.gnu.org]

Author: rsandifo
Date: Wed Jan  3 07:18:38 2018
New Revision: 256158

URL: https://gcc.gnu.org/viewcvs?rev=256158&root=gcc&view=rev
Log:
poly_int: process_alt_operands

This patch makes process_alt_operands check that the mode sizes
are ordered, so that match_reload can validly treat them as subregs
of one another.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

gcc/
	* lra-constraints.c (process_alt_operands): Reject matched
	operands whose sizes aren't ordered.
	(match_reload): Refer to this check here.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-constraints.c