From acdc40dfd2305e16f92e15273dad1cc6d8bee32c Mon Sep 17 00:00:00 2001 From: Dorit Nuzman Date: Sun, 14 Jan 2007 12:42:40 +0000 Subject: param.h (MIN_VECT_LOOP_BOUND): New. * param.h (MIN_VECT_LOOP_BOUND): New. * params.def (MIN_VECT_LOOP_BOUND): New. * tree-vectorizer.c (slpeel_tree_peel_loop_to_edge): Takes another argument - minimum threshold for number of iterations. * tree-vectorizer.h (slpeel_tree_peel_loop_to_edge): Add another argument to declaration. * tree-vect-analyze.c (vect_analyze_operations): Check value of MIN_VECT_LOOP_BOUND. * tree-vect-transform.c (vect_do_peeling_for_loop_bound): Call slpeel_tree_peel_loop_to_edge with additional argument. (vect_do_peeling_for_alignment): Likewise. * doc/invoke.texi (min-vect-loop-bound): Document new param option. From-SVN: r120770 --- gcc/params.def | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'gcc/params.def') diff --git a/gcc/params.def b/gcc/params.def index 41a4e41..6528361 100644 --- a/gcc/params.def +++ b/gcc/params.def @@ -146,6 +146,12 @@ DEFPARAM (PARAM_MAX_VARIABLE_EXPANSIONS, "If -fvariable-expansion-in-unroller is used, the maximum number of times that an individual variable will be expanded during loop unrolling", 1, 0, 0) +/* Limit loop autovectorization to loops with large enough iteration count. */ +DEFPARAM (PARAM_MIN_VECT_LOOP_BOUND, + "min-vect-loop-bound", + "If -ftree-vectorize is used, the minimal loop bound of a loop to be considered for vectorization", + 0, 0, 0) + /* The maximum number of instructions to consider when looking for an instruction to fill a delay slot. If more than this arbitrary number of instructions is searched, the time savings from filling -- cgit v1.1