From 061abbc36928cce784c54463c266f4d43d14d419 Mon Sep 17 00:00:00 2001
From: Manuel Drehwald <git@manuel.drehwald.info>
Date: Mon, 10 Feb 2025 01:35:53 -0500
Subject: remove outdated *First autodiff variants for higher-order ad

---
 compiler/rustc_codegen_ssa/src/codegen_attrs.rs | 2 --
 1 file changed, 2 deletions(-)

(limited to 'compiler/rustc_codegen_ssa/src')

diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs
index 4166387dad0..ad4dcbb919c 100644
--- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs
+++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs
@@ -916,8 +916,6 @@ fn autodiff_attrs(tcx: TyCtxt<'_>, id: DefId) -> Option<AutoDiffAttrs> {
     let mode = match mode.as_str() {
         "Forward" => DiffMode::Forward,
         "Reverse" => DiffMode::Reverse,
-        "ForwardFirst" => DiffMode::ForwardFirst,
-        "ReverseFirst" => DiffMode::ReverseFirst,
         _ => {
             span_bug!(mode.span, "rustc_autodiff attribute contains invalid mode");
         }
-- 
cgit 1.4.1-3-g733a5