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| author | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-25 12:53:26 +0000 |
|---|---|---|
| committer | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-25 12:53:26 +0000 |
| commit | 41fc6ce4194416f39ae2907317ac9c5975dac36b (patch) | |
| tree | cba6592637f7c6bfb3cb621ea30411b61bce6227 | |
| parent | 06780ca85d136fa33ff15b7c59bf0365ca1869e3 (diff) | |
| download | ppe42-gcc-41fc6ce4194416f39ae2907317ac9c5975dac36b.tar.gz ppe42-gcc-41fc6ce4194416f39ae2907317ac9c5975dac36b.zip | |
* tree-optimize.c (init_tree_optimization_passes): Add
pass_record_bounds.
* tree-pass.h (pass_record_bounds): Declare.
* tree-ssa-loop.c (tree_ssa_loop_bounds, pass_record_bounds):
New pass.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@88097 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/tree-optimize.c | 1 | ||||
| -rw-r--r-- | gcc/tree-pass.h | 1 | ||||
| -rw-r--r-- | gcc/tree-ssa-loop.c | 29 |
4 files changed, 39 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 63d20983690..f267169a8d9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,13 @@ 2004-09-25 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz> + * tree-optimize.c (init_tree_optimization_passes): Add + pass_record_bounds. + * tree-pass.h (pass_record_bounds): Declare. + * tree-ssa-loop.c (tree_ssa_loop_bounds, pass_record_bounds): + New pass. + +2004-09-25 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz> + PR tree-optimization/17474 * tree-ssa-ccp.c (maybe_fold_offset_to_component_ref): Determine offset of the field correctly when DECL_FIELD_BIT_OFFSET != 0. diff --git a/gcc/tree-optimize.c b/gcc/tree-optimize.c index 3bcc1cde47b..aa3df9e787c 100644 --- a/gcc/tree-optimize.c +++ b/gcc/tree-optimize.c @@ -393,6 +393,7 @@ init_tree_optimization_passes (void) NEXT_PASS (pass_lim); NEXT_PASS (pass_unswitch); NEXT_PASS (pass_iv_canon); + NEXT_PASS (pass_record_bounds); NEXT_PASS (pass_if_conversion); NEXT_PASS (pass_vectorize); NEXT_PASS (pass_linear_transform); diff --git a/gcc/tree-pass.h b/gcc/tree-pass.h index ae19e2de517..6250ae6140b 100644 --- a/gcc/tree-pass.h +++ b/gcc/tree-pass.h @@ -127,6 +127,7 @@ extern struct tree_opt_pass pass_loop_init; extern struct tree_opt_pass pass_lim; extern struct tree_opt_pass pass_unswitch; extern struct tree_opt_pass pass_iv_canon; +extern struct tree_opt_pass pass_record_bounds; extern struct tree_opt_pass pass_if_conversion; extern struct tree_opt_pass pass_vectorize; extern struct tree_opt_pass pass_complete_unroll; diff --git a/gcc/tree-ssa-loop.c b/gcc/tree-ssa-loop.c index 19f784d9bbf..b1d854e9acd 100644 --- a/gcc/tree-ssa-loop.c +++ b/gcc/tree-ssa-loop.c @@ -297,6 +297,35 @@ struct tree_opt_pass pass_iv_canon = 0 /* letter */ }; +/* Record bounds on numbers of iterations of loops. */ + +static void +tree_ssa_loop_bounds (void) +{ + if (!current_loops) + return; + + estimate_numbers_of_iterations (current_loops); + scev_reset (); +} + +struct tree_opt_pass pass_record_bounds = +{ + "bounds", /* name */ + NULL, /* gate */ + tree_ssa_loop_bounds, /* execute */ + NULL, /* sub */ + NULL, /* next */ + 0, /* static_pass_number */ + 0, /* tv_id */ + PROP_cfg | PROP_ssa, /* properties_required */ + 0, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + 0, /* todo_flags_finish */ + 0 /* letter */ +}; + /* Complete unrolling of loops. */ static void |
