gccrs: Add missing known attribute stable

Fixes #2025

gcc/rust/ChangeLog:

	* util/rust-attributes.cc: Add stable to the table of known attributes

Signed-off-by: Philip Herron <herron.philip@googlemail.com>

diff --git a/gcc/rust/util/rust-attributes.cc b/gcc/rust/util/rust-attributes.cc
index 55f3aa21ef6337bc20b29c75925e08beb4cb4d69..941d4459bd4b14fb5f357dd7ed577a8301a56922 100644 (file)
--- a/gcc/rust/util/rust-attributes.cc
+++ b/gcc/rust/util/rust-attributes.cc
@@ -46,7 +46,8 @@ static const BuiltinAttrDefinition __definitions[]
      {"target_feature", CODE_GENERATION},
      // From now on, these are reserved by the compiler and gated through
      // #![feature(rustc_attrs)]
-     {"rustc_inherit_overflow_checks", CODE_GENERATION}};
+     {"rustc_inherit_overflow_checks", CODE_GENERATION},
+     {"stable", STATIC_ANALYSIS}};
 
 BuiltinAttributeMappings *
 BuiltinAttributeMappings::get ()