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authorJakub Jelinek <jakub@redhat.com>2011-09-27 16:16:57 +0000
committerJakub Jelinek <jakub@redhat.com>2011-09-27 16:16:57 +0000
commitb11bd9ec9b7dfbd48a438c385b7477fdc16b0106 (patch)
treefaa25a6f7f913ab36ec02ff511db4f04057c146b /gcc/params.def
parent59e81c639f65c690774b710446ae9544c1bc0998 (diff)
* common.opt: Add -foptimize-strlen option.
* Makefile.in (OBJS): Add tree-ssa-strlen.o. (tree-sssa-strlen.o): Add dependencies. * opts.c (default_options_table): Enable -foptimize-strlen by default at -O2 if not -Os. * passes.c (init_optimization_passes): Add pass_strlen after pass_object_sizes. * timevar.def (TV_TREE_STRLEN): New timevar. * params.def (PARAM_MAX_TRACKED_STRLENS): New parameter. * tree-pass.h (pass_strlen): Declare. * tree-ssa-strlen.c: New file. * c-decl.c (merge_decls): If compatible stpcpy prototype is seen, set implicit_built_in_decls[BUILT_IN_STPCPY]. cp/ * decl.c (duplicate_decls): If compatible stpcpy prototype is seen, set implicit_built_in_decls[BUILT_IN_STPCPY]. testsuite/ * gcc.dg/strlenopt-1.c: New test. * gcc.dg/strlenopt-1f.c: New test. * gcc.dg/strlenopt-2.c: New test. * gcc.dg/strlenopt-2f.c: New test. * gcc.dg/strlenopt-3.c: New test. * gcc.dg/strlenopt-4.c: New test. * gcc.dg/strlenopt-4g.c: New test. * gcc.dg/strlenopt-4gf.c: New test. * gcc.dg/strlenopt-5.c: New test. * gcc.dg/strlenopt-6.c: New test. * gcc.dg/strlenopt-7.c: New test. * gcc.dg/strlenopt-8.c: New test. * gcc.dg/strlenopt-9.c: New test. * gcc.dg/strlenopt-10.c: New test. * gcc.dg/strlenopt-11.c: New test. * gcc.dg/strlenopt-12.c: New test. * gcc.dg/strlenopt-12g.c: New test. * gcc.dg/strlenopt-13.c: New test. * gcc.dg/strlenopt-14g.c: New test. * gcc.dg/strlenopt-14gf.c: New test. * gcc.dg/strlenopt-15.c: New test. * gcc.dg/strlenopt-16g.c: New test. * gcc.dg/strlenopt-17g.c: New test. * gcc.dg/strlenopt-18g.c: New test. * gcc.dg/strlenopt.h: New file. git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@179278 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/params.def')
-rw-r--r--gcc/params.def8
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/params.def b/gcc/params.def
index 0adf0470a66..a795c38aefc 100644
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -931,6 +931,14 @@ DEFPARAM (PARAM_MAX_TAIL_MERGE_ITERATIONS,
"Maximum amount of iterations of the pass over a function",
2, 0, 0)
+/* Maximum number of strings for which strlen optimization pass will
+ track string lenths. */
+DEFPARAM (PARAM_MAX_TRACKED_STRLENS,
+ "max-tracked-strlens",
+ "Maximum number of strings for which strlen optimization pass will "
+ "track string lengths",
+ 1000, 0, 0)
+
/*
Local variables:
mode:c