From e6dc9a9eed58bdfd9c6f4016864acfe60381f927 Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Thu, 27 Oct 2022 13:08:45 -0700
Subject: Rename 'IDifferentiable.zero' -> `IDifferentiable.dzero`. (#2474)

Co-authored-by: Yong He <yhe@nvidia.com>
---
 source/slang/diff.meta.slang                | 10 +++++-----
 tests/autodiff/auto-differential-type.slang |  4 ++--
 tests/autodiff/generic-impl-jvp.slang       | 10 +++++-----
 tests/autodiff/generic-jvp.slang            |  4 ++--
 tests/autodiff/getter-setter-multi.slang    |  2 +-
 tests/autodiff/getter-setter.slang          |  2 +-
 6 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/source/slang/diff.meta.slang b/source/slang/diff.meta.slang
index e6ddb1cf6..ad3dfe77c 100644
--- a/source/slang/diff.meta.slang
+++ b/source/slang/diff.meta.slang
@@ -26,7 +26,7 @@ interface IDifferentiable
     associatedtype Differential;
 
     [__BuiltinRequirement(_BuiltinRequirementKind.DZeroFunc)]
-    static Differential zero();
+    static Differential dzero();
 
     [__BuiltinRequirement(_BuiltinRequirementKind.DAddFunc)]
     static Differential dadd(Differential, Differential);
@@ -41,7 +41,7 @@ extension float : IDifferentiable
     typedef float Differential;
     
     [__unsafeForceInlineEarly]
-    static Differential zero()
+    static Differential dzero()
     {
         return float(0.f);
     }
@@ -64,7 +64,7 @@ extension vector<float, 3> : IDifferentiable
     typedef vector<float, 3> Differential;
 
     [__unsafeForceInlineEarly]
-    static Differential zero()
+    static Differential dzero()
     {
         return vector<float, 3>(0.f);
     }
@@ -87,7 +87,7 @@ extension vector<float, 2> : IDifferentiable
     typedef vector<float, 2> Differential;
 
     [__unsafeForceInlineEarly]
-    static Differential zero()
+    static Differential dzero()
     {
         return vector<float, 2>(0.f);
     }
@@ -110,7 +110,7 @@ extension vector<float, 4> : IDifferentiable
     typedef vector<float, 4> Differential;
 
     [__unsafeForceInlineEarly]
-    static Differential zero()
+    static Differential dzero()
     {
         return vector<float, 4>(0.f);
     }
diff --git a/tests/autodiff/auto-differential-type.slang b/tests/autodiff/auto-differential-type.slang
index a687c823e..57dd3cb10 100644
--- a/tests/autodiff/auto-differential-type.slang
+++ b/tests/autodiff/auto-differential-type.slang
@@ -12,9 +12,9 @@ struct A : IDifferentiable
     float y;
 
     [__unsafeForceInlineEarly]
-    static Differential zero()
+    static Differential dzero()
     {
-        Differential b = {0.0, float.zero()};
+        Differential b = {0.0, float.dzero()};
         return b;
     }
 
diff --git a/tests/autodiff/generic-impl-jvp.slang b/tests/autodiff/generic-impl-jvp.slang
index d47da336e..8477aa68f 100644
--- a/tests/autodiff/generic-impl-jvp.slang
+++ b/tests/autodiff/generic-impl-jvp.slang
@@ -55,13 +55,13 @@ struct myvector : IDifferentiable
         return output;
     }
 
-    static Differential zero()
+    static Differential dzero()
     {
         Differential output;
 
         for (int i = 0; i < N; i++)
         {
-            output.values[i] = T.zero();
+            output.values[i] = T.dzero();
         }
 
         return output;
@@ -123,7 +123,7 @@ typedef __DifferentialPair<myvector<T, N>> dpvector;
 __generic<T : IDFloat, let N : int>
 __DifferentialPair<T> dot_jvp(dpvector<T, N> a, dpvector<T, N> b)
 {
-    T.Differential curr_d = (T.zero());
+    T.Differential curr_d = (T.dzero());
     T curr_p = (T)0.0;
     for (int i = 0; i < N; i++)
     {
@@ -184,10 +184,10 @@ struct linearvector : MyLinearArithmeticType, IDifferentiable
         return dot(a.val, b.val);
     }
 
-    static Differential zero()
+    static Differential dzero()
     {
         lineardvector<N> dout;
-        dout.val = myvector<Real, N>.zero();
+        dout.val = myvector<Real, N>.dzero();
         return dout;
     }
 
diff --git a/tests/autodiff/generic-jvp.slang b/tests/autodiff/generic-jvp.slang
index c22c228a6..9e0d56f0f 100644
--- a/tests/autodiff/generic-jvp.slang
+++ b/tests/autodiff/generic-jvp.slang
@@ -100,7 +100,7 @@ extension myfloat3 : IDifferentiable
     [DerivativeMember(Differential.val)]
     extern vector<Real, 3> val;
 
-    static Differential zero()
+    static Differential dzero()
     {
         return myfloat3(0);
     }
@@ -126,7 +126,7 @@ extension myfloat4 : IDifferentiable
     [DerivativeMember(Differential.val)]
     extern vector<Real, 4> val;
 
-    static Differential zero()
+    static Differential dzero()
     {
         return myfloat4(0);
     }
diff --git a/tests/autodiff/getter-setter-multi.slang b/tests/autodiff/getter-setter-multi.slang
index bc1f571eb..217c475af 100644
--- a/tests/autodiff/getter-setter-multi.slang
+++ b/tests/autodiff/getter-setter-multi.slang
@@ -20,7 +20,7 @@ struct A : IDifferentiable
     float y[10];
 
     [__unsafeForceInlineEarly]
-    static Differential zero()
+    static Differential dzero()
     {
         B b = {0.0};
         return b;
diff --git a/tests/autodiff/getter-setter.slang b/tests/autodiff/getter-setter.slang
index 1d7847b41..ff4f81a42 100644
--- a/tests/autodiff/getter-setter.slang
+++ b/tests/autodiff/getter-setter.slang
@@ -18,7 +18,7 @@ struct A : IDifferentiable
     float y;
 
     [__unsafeForceInlineEarly]
-    static Differential zero()
+    static Differential dzero()
     {
         B b = {0.0};
         return b;
-- 
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