1 files changed, 1 insertions, 18 deletions
diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs
index c8f13dc0bae..a01f5d372a2 100644
--- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs
+++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs
@@ -1,9 +1,7 @@
 use std::str::FromStr;
 
 use rustc_abi::ExternAbi;
-use rustc_ast::expand::autodiff_attrs::{
-    AutoDiffAttrs, DiffActivity, DiffMode, valid_input_activity, valid_ret_activity,
-};
+use rustc_ast::expand::autodiff_attrs::{AutoDiffAttrs, DiffActivity, DiffMode};
 use rustc_ast::{MetaItem, MetaItemInner, attr};
 use rustc_attr_parsing::ReprAttr::ReprAlign;
 use rustc_attr_parsing::{AttributeKind, InlineAttr, InstructionSetAttr, OptimizeAttr};
@@ -930,21 +928,6 @@ fn autodiff_attrs(tcx: TyCtxt<'_>, id: DefId) -> Option<AutoDiffAttrs> {
         }
     }
 
-    // Validate input and return activities
-    let mut msg = "".to_string();
-    for &input in &arg_activities {
-        if !valid_input_activity(mode, input) {
-            msg = format!("Invalid input activity {} for {} mode", input, mode);
-        }
-    }
-    if !valid_ret_activity(mode, ret_activity) {
-        msg = format!("Invalid return activity {} for {} mode", ret_activity, mode);
-    }
-    if msg != "".to_string() {
-        tcx.dcx().struct_span_err(attr.span(), msg).with_note("invalid activity").emit();
-        return Some(AutoDiffAttrs::error());
-    }
-
     Some(AutoDiffAttrs { mode, ret_activity, input_activity: arg_activities })
 }