Implement optimize(size) and optimize(speed)

2 files changed, 9 insertions, 2 deletions

diff --git a/src/libsyntax/attr/builtin.rs b/src/libsyntax/attr/builtin.rs
index 15e480496f7..1a4b45e76b4 100644
--- a/src/libsyntax/attr/builtin.rs
+++ b/src/libsyntax/attr/builtin.rs
@@ -63,6 +63,13 @@ pub enum InlineAttr {
     Never,
 }
 
+#[derive(Copy, Clone, Hash, PartialEq, RustcEncodable, RustcDecodable)]
+pub enum OptimizeAttr {
+    None,
+    Speed,
+    Size,
+}
+
 #[derive(Copy, Clone, PartialEq)]
 pub enum UnwindAttr {
     Allowed,
diff --git a/src/libsyntax/attr/mod.rs b/src/libsyntax/attr/mod.rs
index e5ce6a3f19a..58be7c3e085 100644
--- a/src/libsyntax/attr/mod.rs
+++ b/src/libsyntax/attr/mod.rs
@@ -4,8 +4,8 @@ mod builtin;
 
 pub use self::builtin::{
     cfg_matches, contains_feature_attr, eval_condition, find_crate_name, find_deprecation,
-    find_repr_attrs, find_stability, find_unwind_attr, Deprecation, InlineAttr, IntType, ReprAttr,
-    RustcDeprecation, Stability, StabilityLevel, UnwindAttr,
+    find_repr_attrs, find_stability, find_unwind_attr, Deprecation, InlineAttr, OptimizeAttr,
+    IntType, ReprAttr, RustcDeprecation, Stability, StabilityLevel, UnwindAttr,
 };
 pub use self::IntType::*;
 pub use self::ReprAttr::*;