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| author | Jakub Jelinek <jakub@redhat.com> | 2011-09-27 18:15:46 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-09-27 18:15:46 +0200 |
| commit | 8b57bfebe0bf2344c0eba3e17941a87e6dd2bbdf (patch) | |
| tree | c8200cc6b87f6842f33b4c4ff883b03d7a81bc54 /gcc/c-decl.c | |
| parent | baaa40aeca4a95a6e250e14e8f1e8b2e1239c864 (diff) | |
| download | gcc-8b57bfebe0bf2344c0eba3e17941a87e6dd2bbdf.zip gcc-8b57bfebe0bf2344c0eba3e17941a87e6dd2bbdf.tar.gz gcc-8b57bfebe0bf2344c0eba3e17941a87e6dd2bbdf.tar.bz2 | |
common.opt: Add -foptimize-strlen option.
* 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.
From-SVN: r179277
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index 5d4564a..cb58d32 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -2369,7 +2369,21 @@ merge_decls (tree newdecl, tree olddecl, tree newtype, tree oldtype) DECL_FUNCTION_CODE (newdecl) = DECL_FUNCTION_CODE (olddecl); C_DECL_DECLARED_BUILTIN (newdecl) = 1; if (new_is_prototype) - C_DECL_BUILTIN_PROTOTYPE (newdecl) = 0; + { + C_DECL_BUILTIN_PROTOTYPE (newdecl) = 0; + if (DECL_BUILT_IN_CLASS (newdecl) == BUILT_IN_NORMAL) + switch (DECL_FUNCTION_CODE (newdecl)) + { + /* If a compatible prototype of these builtin functions + is seen, assume the runtime implements it with the + expected semantics. */ + case BUILT_IN_STPCPY: + implicit_built_in_decls[DECL_FUNCTION_CODE (newdecl)] + = built_in_decls[DECL_FUNCTION_CODE (newdecl)]; + default: + break; + } + } else C_DECL_BUILTIN_PROTOTYPE (newdecl) = C_DECL_BUILTIN_PROTOTYPE (olddecl); |