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| author | Martin Liska <mliska@suse.cz> | 2019-07-03 10:36:54 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2019-07-03 08:36:54 +0000 |
| commit | 87741e51b53511bed2bd687dc48fe8578ae81d6c (patch) | |
| tree | e230e0bcb2b3cceb4f9d73ecbd46d47f7fa7ffd0 /gcc/doc/install.texi | |
| parent | 88614dfa2bb5a40566bef00a85b13c4b167dc3c5 (diff) | |
Add zstd support for LTO bytecode compression.
2019-07-03 Martin Liska <mliska@suse.cz>
* Makefile.in: Define ZSTD_LIB.
* common.opt: Adjust compression level
to support also zstd levels.
* config.in: Regenerate.
* configure: Likewise.
* configure.ac: Add --with-zstd and --with-zstd-include options
and detect ZSTD.
* doc/install.texi: Mention zstd dependency.
* gcc.c: Print supported LTO compression algorithms.
* lto-compress.c (lto_normalized_zstd_level): Likewise.
(lto_compression_zstd): Likewise.
(lto_uncompression_zstd): Likewise.
(lto_end_compression): Dispatch in between zlib and zstd.
(lto_compression_zlib): Mark with ATTRIBUTE_UNUSED.
(lto_uncompression_zlib): Make it static.
* lto-compress.h (lto_end_uncompression): Fix GNU coding style.
* lto-section-in.c (lto_get_section_data): Pass info
about used compression.
* lto-streamer-out.c: By default use zstd when possible.
* timevar.def (TV_IPA_LTO_DECOMPRESS): Rename to decompression
(TV_IPA_LTO_COMPRESS): Likewise for compression.
From-SVN: r272996
Diffstat (limited to 'gcc/doc/install.texi')
| -rw-r--r-- | gcc/doc/install.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 1a0e8c7d3f8..852aa8f6dae 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -396,6 +396,12 @@ built together with GCC. Alternatively, the @option{--with-isl} configure option should be used if isl is not installed in your default library search path. +@item zstd Library. + +Necessary to build GCC with zstd compression used for LTO bytecode. +The library is searched in your default library patch search. +Alternatively, the @option{--with-zstd} configure option should be used. + @end table @heading Tools/packages necessary for modifying GCC |