r255523 - in /trunk/gcc: ChangeLog testsuite/Ch...

[jakub@gcc.gnu.org]

Author: jakub
Date: Sat Dec  9 11:43:31 2017
New Revision: 255523

URL: https://gcc.gnu.org/viewcvs?rev=255523&root=gcc&view=rev
Log:
	PR tree-optimization/83338
	* tree-vect-stmts.c (vectorizable_operation): Handle POINTER_DIFF_EXPR
	vectorization as MINUS_EXPR with a subsequent VIEW_CONVERT_EXPR from
	vector of unsigned integers to vector of signed integers.

	* gcc.dg/vect/pr83338.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr83338.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-stmts.c