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| author | Jan Hubicka <hubicka@ucw.cz> | 2014-09-12 01:16:42 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2014-09-11 23:16:42 +0000 |
| commit | 1ee85ee19b06863781374b7c9f97e4f6e931118b (patch) | |
| tree | 5ca60267bac44557141301c497a4c5364a3466f9 /gcc/doc | |
| parent | bc9132dee6c4a8a4348a15ad62772d632351388b (diff) | |
| download | gcc-1ee85ee19b06863781374b7c9f97e4f6e931118b.zip gcc-1ee85ee19b06863781374b7c9f97e4f6e931118b.tar.gz gcc-1ee85ee19b06863781374b7c9f97e4f6e931118b.tar.bz2 | |
common.opt (flto-odr-type-merging): New flag.
* common.opt (flto-odr-type-merging): New flag.
* ipa-deivrt.c (hash_type_name): Use ODR names for hasing if availale.
(types_same_for_odr): Likewise.
(odr_subtypes_equivalent_p): Likewise.
(add_type_duplicate): Do not walk type variants.
(register_odr_type): New function.
* ipa-utils.h (register_odr_type): Declare.
(odr_type_p): New function.
* langhooks.c (lhd_set_decl_assembler_name): Do not compute
TYPE_DECLs
* doc/invoke.texi (-flto-odr-type-merging): Document.
* tree.c (need_assembler_name_p): Compute ODR names when asked
for it.
* tree.h (DECL_ASSEMBLER_NAME): Update comment.
* lto.c (lto_read_decls): Register ODR types.
From-SVN: r215196
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 68e992d..eae4ab1 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -9019,6 +9019,12 @@ The value @code{one} specifies that exactly one partition should be used while the value @code{none} bypasses partitioning and executes the link-time optimization step directly from the WPA phase. +@item -flto-odr-type-merging +@opindex flto-odr-type-merging +Enable streaming of mangled types names of C++ types and their unification +at linktime. This increases size of LTO object files, but enable +diagnostics about One Definition Rule violations. + @item -flto-compression-level=@var{n} This option specifies the level of compression used for intermediate language written to LTO object files, and is only meaningful in |