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| author | Vladimir Makarov <vmakarov@redhat.com> | 2008-11-25 22:52:37 +0000 |
|---|---|---|
| committer | Vladimir Makarov <vmakarov@gcc.gnu.org> | 2008-11-25 22:52:37 +0000 |
| commit | 30ea859e70a20f65b8abfb28269cd31bcab54941 (patch) | |
| tree | 570532edd558acfd1cd74a139d8cf1f249d28173 /gcc/doc | |
| parent | 5a1c3c109550ee678d41873ab74cb723923c7796 (diff) | |
| download | gcc-30ea859e70a20f65b8abfb28269cd31bcab54941.zip gcc-30ea859e70a20f65b8abfb28269cd31bcab54941.tar.gz gcc-30ea859e70a20f65b8abfb28269cd31bcab54941.tar.bz2 | |
invoke.texi (ira-max-loops-num): Change semantics.
2008-11-25 Vladimir Makarov <vmakarov@redhat.com>
* doc/invoke.texi (ira-max-loops-num): Change semantics.
* ira-int.h (struct ira_loop_tree_node): New member to_remove_p.
* ira-color.c (allocno_spill_priority): New function.
(remove_allocno_from_bucket_and_push, push_allocno_to_spill):
Print more info about the spilled allocno.
(push_allocnos_to_stack): Use allocno_spill_priority. Add more
checks on bad spill.
* ira-build.c (loop_node_to_be_removed_p): Remove.
(loop_compare_func, mark_loops_for_removal): New functions.
(remove_uneccesary_loop_nodes_from_loop_t): Use member
to_remove_p.
(remove_unnecessary_allocnos): Call mark_loops_for_removal.
* ira.c (ira): Don't change flag_ira_algorithm.
* params.def (ira-max-loops-num): Change the value.
From-SVN: r142207
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 6fabfd7..a25f469 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -7603,10 +7603,10 @@ be disabled. The default maximum SCC size is 10000. @item ira-max-loops-num IRA uses a regional register allocation by default. If a function -contains loops more than number given by the parameter, non-regional -register allocator will be used even when option -@option{-fira-algorithm} is given. The default value of the parameter -is 20. +contains loops more than number given by the parameter, only at most +given number of the most frequently executed loops will form regions +for the regional register allocation. The default value of the +parameter is 100. @end table @end table |