[Bug tree-optimization/89007] [SVE] Implement generic vector average expansion

[prathamesh3492 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89007

--- Comment #1 from prathamesh3492 at gcc dot gnu.org ---
Author: prathamesh3492
Date: Mon Dec  9 09:59:42 2019
New Revision: 279112

URL: https://gcc.gnu.org/viewcvs?rev=279112&root=gcc&view=rev
Log:
2019-12-09  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR tree-optimization/89007
        * tree-vect-patterns.c (vect_recog_average_pattern): If there is no
        target support available, generate code to distribute rshift over plus
        and add a carry.

testsuite/
        * gcc.target/aarch64/sve/pr89007-1.c: New test.
        * gcc.target/aarch64/sve/pr89007-2.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.target/aarch64/sve/pr89007-1.c
    trunk/gcc/testsuite/gcc.target/aarch64/sve/pr89007-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-patterns.c