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| author | Dorit Nuzman <dorit@il.ibm.com> | 2007-01-14 12:42:40 +0000 |
|---|---|---|
| committer | Dorit Nuzman <dorit@gcc.gnu.org> | 2007-01-14 12:42:40 +0000 |
| commit | acdc40dfd2305e16f92e15273dad1cc6d8bee32c (patch) | |
| tree | c1d065e5ba09e4c5a85904acf9038d65101037cd /gcc/params.def | |
| parent | 37fc8424ac5a0896dc43a0d506d434b60c55452d (diff) | |
| download | gcc-acdc40dfd2305e16f92e15273dad1cc6d8bee32c.zip gcc-acdc40dfd2305e16f92e15273dad1cc6d8bee32c.tar.gz gcc-acdc40dfd2305e16f92e15273dad1cc6d8bee32c.tar.bz2 | |
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
Diffstat (limited to 'gcc/params.def')
| -rw-r--r-- | gcc/params.def | 6 |
1 files changed, 6 insertions, 0 deletions
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 |