From: Owen Avery <powerboat9.gamer@gmail.com>
Date: Wed, 27 Mar 2024 01:57:17 +0000 (-0400)
Subject: gccrs: Recognize rustc_deprecated as a builtin attribute
X-Git-Tag: basepoints/gcc-16~6969
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cde7407ec09fce2041f8e55f2408c2a55c0b05fa;p=thirdparty%2Fgcc.git

gccrs: Recognize rustc_deprecated as a builtin attribute

gcc/rust/ChangeLog:

	* util/rust-attribute-values.h
	(Attributes::RUSTC_DEPRECATED): New.
	* util/rust-attributes.cc
	(__definitions): Add Attributes::RUSTC_DEPRECATED.

gcc/testsuite/ChangeLog:

	* rust/compile/deprecated-fn.rs: New test.

Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
---

diff --git a/gcc/rust/util/rust-attribute-values.h b/gcc/rust/util/rust-attribute-values.h
index e284cec1a16..04aef99be68 100644
--- a/gcc/rust/util/rust-attribute-values.h
+++ b/gcc/rust/util/rust-attribute-values.h
@@ -48,6 +48,7 @@ public:
   static constexpr auto &TARGET_FEATURE = "target_feature";
   // From now on, these are reserved by the compiler and gated through
   // #![feature(rustc_attrs)]
+  static constexpr auto &RUSTC_DEPRECATED = "rustc_deprecated";
   static constexpr auto &RUSTC_INHERIT_OVERFLOW_CHECKS
     = "rustc_inherit_overflow_checks";
   static constexpr auto &STABLE = "stable";
diff --git a/gcc/rust/util/rust-attributes.cc b/gcc/rust/util/rust-attributes.cc
index eac29808299..e10918b2f8d 100644
--- a/gcc/rust/util/rust-attributes.cc
+++ b/gcc/rust/util/rust-attributes.cc
@@ -58,6 +58,7 @@ static const BuiltinAttrDefinition __definitions[]
      {Attrs::TARGET_FEATURE, CODE_GENERATION},
      // From now on, these are reserved by the compiler and gated through
      // #![feature(rustc_attrs)]
+     {Attrs::RUSTC_DEPRECATED, STATIC_ANALYSIS},
      {Attrs::RUSTC_INHERIT_OVERFLOW_CHECKS, CODE_GENERATION},
      {Attrs::STABLE, STATIC_ANALYSIS}};
 
diff --git a/gcc/testsuite/rust/compile/deprecated-fn.rs b/gcc/testsuite/rust/compile/deprecated-fn.rs
new file mode 100644
index 00000000000..4083593b30b
--- /dev/null
+++ b/gcc/testsuite/rust/compile/deprecated-fn.rs
@@ -0,0 +1,4 @@
+#![feature(rustc_attrs)]
+
+#[rustc_deprecated(since = "right now", reason = "a whim")]
+pub fn foo() {}