From de62cab5e3cf067df512f961793789e219e6ba1c Mon Sep 17 00:00:00 2001
From: Christopher Rackauckas <accounts@chrisrackauckas.com>
Date: Sun, 21 Jul 2024 17:13:34 -0400
Subject: [PATCH] Revert "Only duplicate and make_zero! if enzyme func is
 non-constant"

This reverts commit 7bc9e2cf1121702356684bc92cb54689a5d3b827.
---
 src/derivative_wrappers.jl | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/src/derivative_wrappers.jl b/src/derivative_wrappers.jl
index 8f9d82dff..ebd1c1d9e 100644
--- a/src/derivative_wrappers.jl
+++ b/src/derivative_wrappers.jl
@@ -707,16 +707,11 @@ function _vecjacobian!(dλ, y, λ, p, t, S::TS, isautojacvec::EnzymeVJP, dgrad,
 
     isautojacvec = get_jacvec(sensealg)
 
-    if Core.Compiler.isconstType(_tmp6)
-        Enzyme.make_zero!(_tmp6)
-        _f = Enzyme.Duplicated(S.diffcache.pf, _tmp6)
-    else
-        _f = S.diffcache.pf
-    end
+    Enzyme.make_zero!(_tmp6)
 
     if inplace_sensitivity(S)
         if W === nothing
-            Enzyme.autodiff(Enzyme.Reverse, _f,
+            Enzyme.autodiff(Enzyme.Reverse, Enzyme.Duplicated(S.diffcache.pf, _tmp6),
                 Enzyme.Const, Enzyme.Duplicated(tmp3, tmp4),
                 Enzyme.Duplicated(ytmp, tmp1),
                 dup,