https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70923
--- Comment #10 from ktkachov at gcc dot gnu.org --- Author: ktkachov Date: Thu Jul 14 14:32:39 2016 New Revision: 238340 URL: https://gcc.gnu.org/viewcvs?rev=238340&root=gcc&view=rev Log: [vectorizer][2/2] Hook up mult synthesis logic into vectorisation of mult-by-constant PR target/65951 PR tree-optimization/70923 * tree-vect-patterns.c: Include mult-synthesis.h. (target_supports_mult_synth_alg): New function. (synth_lshift_by_additions): Likewise. (apply_binop_and_append_stmt): Likewise. (vect_synth_mult_by_constant): Likewise. (target_has_vecop_for_code): Likewise. (vect_recog_mult_pattern): Use above functions to synthesize vector multiplication by integer constants. * gcc.dg/vect/vect-mult-const-pattern-1.c: New test. * gcc.dg/vect/vect-mult-const-pattern-2.c: Likewise. * gcc.dg/vect/pr65951.c: Likewise. * gcc.dg/vect/vect-iv-9.c: Remove ! vect_int_mult-specific scan. Added: trunk/gcc/testsuite/gcc.dg/vect/pr65951.c trunk/gcc/testsuite/gcc.dg/vect/vect-mult-const-pattern-1.c trunk/gcc/testsuite/gcc.dg/vect/vect-mult-const-pattern-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/vect/vect-iv-9.c trunk/gcc/tree-vect-patterns.c
