gcc/ChangeLog:
* doc/invoke.texi: Document minimum and maximum value of the
argument for both supported compression algorithms.
---
gcc/doc/invoke.texi | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index f4f2fb63952..46876ea2961 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
--
2.30.2
