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| author | Martin Liska <mliska@suse.cz> | 2021-04-06 14:31:13 +0200 |
|---|---|---|
| committer | Martin Liska <mliska@suse.cz> | 2021-04-09 13:47:22 +0200 |
| commit | 6fd1271e71b16b535d0016229dff6e89a3deb280 (patch) | |
| tree | 0e120e2cd3958499d6c8de60c3990062cbcd725a /gcc/doc | |
| parent | 7d7481ecbcb689e1120d4d22d6ede18769fbcb5a (diff) | |
| download | gcc-6fd1271e71b16b535d0016229dff6e89a3deb280.zip gcc-6fd1271e71b16b535d0016229dff6e89a3deb280.tar.gz gcc-6fd1271e71b16b535d0016229dff6e89a3deb280.tar.bz2 | |
-flto-compression-level: improve documentation
gcc/ChangeLog:
* doc/invoke.texi: Document minimum and maximum value of the
argument for both supported compression algorithms.
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index f4f2fb6..46876ea 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -12371,10 +12371,12 @@ the link-time optimization step directly from the WPA phase. @opindex flto-compression-level This option specifies the level of compression used for intermediate language written to LTO object files, and is only meaningful in -conjunction with LTO mode (@option{-flto}). Valid -values are 0 (no compression) to 9 (maximum compression). Values -outside this range are clamped to either 0 or 9. If the option is not -given, a default balanced compression setting is used. +conjunction with LTO mode (@option{-flto}). GCC currently supports two +LTO compression algorithms. For zstd, valid values are 0 (no compression) +to 19 (maximum compression), while zlib supports values from 0 to 9. +Values outside this range are clamped to either minimum or maximum +of the supported values. If the option is not given, +a default balanced compression setting is used. @item -fuse-linker-plugin @opindex fuse-linker-plugin |