Use property for `DifferentialPair` accessors. (#2493)

21 files changed, 116 insertions, 104 deletions

diff --git a/source/slang/diff.meta.slang b/source/slang/diff.meta.slang
index ae4db603e..2625d79b0 100644
--- a/source/slang/diff.meta.slang
+++ b/source/slang/diff.meta.slang
@@ -70,22 +70,34 @@ struct DifferentialPair : IDifferentiable
     __intrinsic_op($(kIROp_MakeDifferentialPair))
     __init(T _primal, T.Differential _differential);
 
-    __intrinsic_op($(kIROp_DifferentialPairGetDifferential))
-    T.Differential d();
+    property p : T
+    {
+        __intrinsic_op($(kIROp_DifferentialPairGetPrimal))
+        get;
+    }
+
+    property v : T
+    {
+        __intrinsic_op($(kIROp_DifferentialPairGetPrimal))
+        get;
+    }
+
+    property d : T.Differential
+    {
+        __intrinsic_op($(kIROp_DifferentialPairGetDifferential))
+        get;
+    }
 
     [__unsafeForceInlineEarly]
     T.Differential getDifferential()
     {
-        return d();
+        return d;
     }
 
-    __intrinsic_op($(kIROp_DifferentialPairGetPrimal))
-    T p();
-
     [__unsafeForceInlineEarly]
     T getPrimal()
     {
-        return p();
+        return p;
     }
 
     [__unsafeForceInlineEarly]
@@ -99,18 +111,18 @@ struct DifferentialPair : IDifferentiable
     {
         return Differential(
             T.dadd(
-                a.p(),
-                b.p()
+                a.p,
+                b.p
             ),
-            T.Differential.dadd(a.d(), b.d()));
+            T.Differential.dadd(a.d, b.d));
     }
 
     [__unsafeForceInlineEarly]
     static Differential dmul(This a, Differential b)
     {
         return Differential(
-            T.dmul(a.p(), b.p()),
-            T.Differential.dmul(a.d(), b.d()));
+            T.dmul(a.p, b.p),
+            T.Differential.dmul(a.d, b.d));
     }
 };
 
@@ -135,8 +147,8 @@ namespace dstd
     DifferentialPair<T> d_exp(DifferentialPair<T> dpx)
     {
         return DifferentialPair<T>(
-            exp(dpx.p()),
-            T.dmul(exp(dpx.p()), dpx.d()));
+            exp(dpx.p),
+            T.dmul(exp(dpx.p), dpx.d));
     }
 
     // Sine
@@ -153,8 +165,8 @@ namespace dstd
     DifferentialPair<T> d_sin(DifferentialPair<T> dpx)
     {
         return DifferentialPair<T>(
-            sin(dpx.p()),
-            T.dmul(cos(dpx.p()), dpx.d()));
+            sin(dpx.p),
+            T.dmul(cos(dpx.p), dpx.d));
     }
 
     // Cosine
@@ -171,8 +183,8 @@ namespace dstd
     DifferentialPair<T> d_cos(DifferentialPair<T> dpx)
     {
         return DifferentialPair<T>(
-            cos(dpx.p()),
-            T.dmul(-sin(dpx.p()), dpx.d()));
+            cos(dpx.p),
+            T.dmul(-sin(dpx.p), dpx.d));
     }
 
     __generic<let N : int>
@@ -192,9 +204,9 @@ namespace dstd
         vector<float, N>.Differential d_result;
         for(int i = 0; i < N; ++i)
         { 
-            DifferentialPair<float> dpexp = dstd.d_exp(DifferentialPair<float>(dpx.p()[i], dpx.d()[i]));
-            result[i] = dpexp.p(); 
-            d_result[i] = dpexp.d(); 
+            DifferentialPair<float> dpexp = dstd.d_exp(DifferentialPair<float>(dpx.p[i], dpx.d[i]));
+            result[i] = dpexp.p; 
+            d_result[i] = dpexp.d; 
         }
 
         return DifferentialPair<vector<float, N>>(result, d_result);
diff --git a/tests/autodiff/arithmetic-jvp.slang b/tests/autodiff/arithmetic-jvp.slang
index 134741d4d..70b35c244 100644
--- a/tests/autodiff/arithmetic-jvp.slang
+++ b/tests/autodiff/arithmetic-jvp.slang
@@ -15,7 +15,7 @@ float f(float x)
 
 dpfloat g_jvp_(dpfloat dpx)
 {
-    return dpfloat(dpx.p(), 2 * dpx.d());
+    return dpfloat(dpx.p, 2 * dpx.d);
 }
 
 [ForwardDerivative(g_jvp_)]
@@ -46,10 +46,10 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
         dpfloat dpa = dpfloat(2.0, 1.0);
         dpfloat dpb = dpfloat(1.5, 1.0);
 
-        outputBuffer[0] = __fwd_diff(f)(dpa).d();                   // Expect: 1
-        outputBuffer[1] = __fwd_diff(f)(dpfloat(dpa.p(), 0.0)).d(); // Expect: 0
-        outputBuffer[2] = __fwd_diff(g)(dpa).d();                   // Expect: 2
-        outputBuffer[3] = __fwd_diff(h)(dpa, dpb).d();              // Expect: 8
-        outputBuffer[4] = __fwd_diff(j)(dpa, dpb).d();               // Expect: 1
+        outputBuffer[0] = __fwd_diff(f)(dpa).d;                   // Expect: 1
+        outputBuffer[1] = __fwd_diff(f)(dpfloat(dpa.p, 0.0)).d; // Expect: 0
+        outputBuffer[2] = __fwd_diff(g)(dpa).d;                   // Expect: 2
+        outputBuffer[3] = __fwd_diff(h)(dpa, dpb).d;              // Expect: 8
+        outputBuffer[4] = __fwd_diff(j)(dpa, dpb).d;               // Expect: 1
     }
 }
diff --git a/tests/autodiff/auto-differential-type.slang b/tests/autodiff/auto-differential-type.slang
index a4d0b6d89..efeebb459 100644
--- a/tests/autodiff/auto-differential-type.slang
+++ b/tests/autodiff/auto-differential-type.slang
@@ -54,6 +54,6 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
 
         dpA dpa = dpA(a, b);
 
-        outputBuffer[0] = __fwd_diff(f)(dpa).d().x;                    // Expect: 1
+        outputBuffer[0] = __fwd_diff(f)(dpa).d.x;                    // Expect: 1
     }
 }
diff --git a/tests/autodiff/custom-intrinsic.slang b/tests/autodiff/custom-intrinsic.slang
index ce6c1024f..8048c60ff 100644
--- a/tests/autodiff/custom-intrinsic.slang
+++ b/tests/autodiff/custom-intrinsic.slang
@@ -23,8 +23,8 @@ namespace myintrinsiclib
     DifferentialPair<T> d_exp(DifferentialPair<T> dpx)
     {
         return DifferentialPair<T>(
-            exp(dpx.p()),
-            T.dmul(exp(dpx.p()), dpx.d()));
+            exp(dpx.p),
+            T.dmul(exp(dpx.p), dpx.d));
     }
 
     
@@ -42,8 +42,8 @@ namespace myintrinsiclib
     DifferentialPair<T> d_sin(DifferentialPair<T> dpx)
     {
         return DifferentialPair<T>(
-            sin(dpx.p()),
-            T.dmul(cos(dpx.p()), dpx.d()));
+            sin(dpx.p),
+            T.dmul(cos(dpx.p), dpx.d));
     }
 
     // Cosine
@@ -60,8 +60,8 @@ namespace myintrinsiclib
     DifferentialPair<T> d_cos(DifferentialPair<T> dpx)
     {
         return DifferentialPair<T>(
-            cos(dpx.p()),
-            T.dmul(-sin(dpx.p()), dpx.d()));
+            cos(dpx.p),
+            T.dmul(-sin(dpx.p), dpx.d));
     }
 
     // Sine and cosine
@@ -80,10 +80,10 @@ namespace myintrinsiclib
     {
         T _s;
         T _c;
-        sincos(x.p(), _s, _c);
+        sincos(x.p, _s, _c);
 
-        s = DifferentialPair<T>(_s, T.dmul(_c, x.d()));
-        c = DifferentialPair<T>(_c, T.dmul(-_s, x.d()));
+        s = DifferentialPair<T>(_s, T.dmul(_c, x.d));
+        c = DifferentialPair<T>(_c, T.dmul(-_s, x.d));
     }
 };
 
@@ -109,13 +109,13 @@ void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
     {
         dpfloat dpa = dpfloat(2.0, 1.0);
 
-        outputBuffer[0] = f(dpa.p());        // Expect: 7.389056
-        outputBuffer[1] = __fwd_diff(f)(dpa).d(); // Expect: 7.389056
+        outputBuffer[0] = f(dpa.p);        // Expect: 7.389056
+        outputBuffer[1] = __fwd_diff(f)(dpa).d; // Expect: 7.389056
 
         // g() needs additional handling of  IRMakeDifferentialPair(PtrType). This needs to 
         // generate a new var, load from the individual vars and store into the pair var.
 
-        //outputBuffer[2] = g(dpa.p());        // Expect: 1.381773
-        //outputBuffer[3] = __fwd_diff(g)(dpa).d(); // Expect: -0.301168
+        //outputBuffer[2] = g(dpa.p);        // Expect: 1.381773
+        //outputBuffer[3] = __fwd_diff(g)(dpa).d; // Expect: -0.301168
     }
 }
\ No newline at end of file
diff --git a/tests/autodiff/differential-method-synthesis.slang b/tests/autodiff/differential-method-synthesis.slang
index 433342b52..4c96779f9 100644
--- a/tests/autodiff/differential-method-synthesis.slang
+++ b/tests/autodiff/differential-method-synthesis.slang
@@ -41,7 +41,7 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
         A a = {1.0, 2.0};
         A.Differential b = {0.2};
         dpA dpa = dpA(a, b);
-        outputBuffer[0] = __fwd_diff(f)(dpa).d().b.x; // Expect: 0
+        outputBuffer[0] = __fwd_diff(f)(dpa).d.b.x; // Expect: 0
         outputBuffer[1] = A.dadd(b, b).b.x;      // Expect: 0.4
         outputBuffer[2] = A.dmul(a, b).b.x;      // Expect: 0.2
     }
diff --git a/tests/autodiff/dstdlib-vector.slang b/tests/autodiff/dstdlib-vector.slang
index 44315daf6..1a1bd0dfa 100644
--- a/tests/autodiff/dstdlib-vector.slang
+++ b/tests/autodiff/dstdlib-vector.slang
@@ -20,7 +20,7 @@ void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
     {
         dpfloat dpa = dpfloat(2.0, 1.0);
 
-        outputBuffer[0] = f(dpa.p());        // Expect: 465.415999
-        outputBuffer[1] = __fwd_diff(f)(dpa).d(); // Expect: 1326.871736
+        outputBuffer[0] = f(dpa.p);        // Expect: 465.415999
+        outputBuffer[1] = __fwd_diff(f)(dpa).d; // Expect: 1326.871736
     }
 }
\ No newline at end of file
diff --git a/tests/autodiff/dstdlib.slang b/tests/autodiff/dstdlib.slang
index aef59d445..247200511 100644
--- a/tests/autodiff/dstdlib.slang
+++ b/tests/autodiff/dstdlib.slang
@@ -30,11 +30,11 @@ void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
     {
         dpfloat dpa = dpfloat(2.0, 1.0);
 
-        outputBuffer[0] = f(dpa.p());        // Expect: 7.389056
-        outputBuffer[1] = __fwd_diff(f)(dpa).d(); // Expect: 7.389056
-        outputBuffer[2] = g(dpa.p());        // Expect: 0.909297 
-        outputBuffer[3] = __fwd_diff(g)(dpa).d(); // Expect: -0.416146
-        outputBuffer[4] = h(dpa.p());        // Expect: -0.416146
-        outputBuffer[5] = __fwd_diff(h)(dpa).d(); // Expect: -0.909297 
+        outputBuffer[0] = f(dpa.p);        // Expect: 7.389056
+        outputBuffer[1] = __fwd_diff(f)(dpa).d; // Expect: 7.389056
+        outputBuffer[2] = g(dpa.p);        // Expect: 0.909297 
+        outputBuffer[3] = __fwd_diff(g)(dpa).d; // Expect: -0.416146
+        outputBuffer[4] = h(dpa.p);        // Expect: -0.416146
+        outputBuffer[5] = __fwd_diff(h)(dpa).d; // Expect: -0.909297 
     }
 }
\ No newline at end of file
diff --git a/tests/autodiff/generic-custom-jvp.slang b/tests/autodiff/generic-custom-jvp.slang
index 47e646ccc..6e9e863bb 100644
--- a/tests/autodiff/generic-custom-jvp.slang
+++ b/tests/autodiff/generic-custom-jvp.slang
@@ -13,8 +13,8 @@ import test_intrinsics;
 dpfloat my_pow_jvp(dpfloat x, dpfloat n)
 {
     return dpfloat(
-        pow(x.p(), n.p()),
-        x.d() * n.p() * pow(x.p(), n.p()-1) + n.d() * pow(x.p(), n.p()) * log(x.p()));
+        pow(x.p, n.p),
+        x.d * n.p * pow(x.p, n.p-1) + n.d * pow(x.p, n.p) * log(x.p));
 }
 
 [ForwardDerivative(my_pow_jvp)]
@@ -27,9 +27,9 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
         dpfloat dpa = dpfloat(5.0, 1.0);
         dpfloat dpn = dpfloat(2, 0.0);
 
-        outputBuffer[0] = __fwd_diff(_pow)(dpa, dpn).d();        // Expect: 10.0
+        outputBuffer[0] = __fwd_diff(_pow)(dpa, dpn).d;        // Expect: 10.0
         outputBuffer[1] = __fwd_diff(_pow)(
-            dpfloat(dpa.p(), 0.0),
-            dpfloat(dpn.p(), 1.0)).d();                     // Expect: 40.23595
+            dpfloat(dpa.p, 0.0),
+            dpfloat(dpn.p, 1.0)).d;                     // Expect: 40.23595
     }
 }
diff --git a/tests/autodiff/generic-impl-jvp.slang b/tests/autodiff/generic-impl-jvp.slang
index 7f4c4313e..a1bc18252 100644
--- a/tests/autodiff/generic-impl-jvp.slang
+++ b/tests/autodiff/generic-impl-jvp.slang
@@ -127,12 +127,12 @@ DifferentialPair<T> dot_jvp(dpvector<T, N> a, dpvector<T, N> b)
     T curr_p = (T)0.0;
     for (int i = 0; i < N; i++)
     {
-        curr_p = curr_p + (a.p().values[i] * b.p().values[i]);
+        curr_p = curr_p + (a.p.values[i] * b.p.values[i]);
         curr_d = T.dadd(
                     curr_d, 
                     T.dadd(
-                        T.dmul(a.p().values[i], b.d().values[i]),
-                        T.dmul(b.p().values[i], a.d().values[i])));
+                        T.dmul(a.p.values[i], b.d.values[i]),
+                        T.dmul(b.p.values[i], a.d.values[i])));
     }
 
     return DifferentialPair<T>(curr_p, curr_d);
@@ -298,9 +298,9 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
         dpfloat4 dpf4 = dpfloat4(myfloat4(float4(1.5, 2.0, 0.5, 1.0)), mydfloat4(float4(0.5, 0.8, 1.6, 2.5)));
         dpfloat3 dpf3 = dpfloat3(myfloat3(float3(1.0, 3.0, 5.0)), mydfloat3(float3(0.5, 1.5, 2.5)));
 
-        outputBuffer[0] = f(dpa.p());                               // Expect: 22.0
-        outputBuffer[1] = __fwd_diff(f)(dpfloat(2.0, 0.5)).d();          // Expect: 9.5
-        outputBuffer[2] = __fwd_diff(f)(dpf4).d().val.values[3];         // Expect: 27.5
-        outputBuffer[3] = __fwd_diff(f)(dpf3).d().val.values[1];         // Expect: 40.5
+        outputBuffer[0] = f(dpa.p);                               // Expect: 22.0
+        outputBuffer[1] = __fwd_diff(f)(dpfloat(2.0, 0.5)).d;          // Expect: 9.5
+        outputBuffer[2] = __fwd_diff(f)(dpf4).d.val.values[3];         // Expect: 27.5
+        outputBuffer[3] = __fwd_diff(f)(dpf3).d.val.values[1];         // Expect: 40.5
     }
 }
diff --git a/tests/autodiff/generic-jvp.slang b/tests/autodiff/generic-jvp.slang
index 78a292251..61ec077f4 100644
--- a/tests/autodiff/generic-jvp.slang
+++ b/tests/autodiff/generic-jvp.slang
@@ -209,9 +209,9 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
         dpfloat4 dpf4 = dpfloat4(myfloat4(float4(1.5, 2.0, 0.5, 1.0)), myfloat4(float4(0.5, 0.8, 1.6, 2.5)));
         dpfloat3 dpf3 = dpfloat3(myfloat3(float3(1.0, 3.0, 5.0)), myfloat3(float3(0.5, 1.5, 2.5)));
 
-        outputBuffer[0] = f(dpa.p());                       // Expect: 22.0
-        outputBuffer[1] = __fwd_diff(f)(dpfloat(2.0, 0.5)).d();  // Expect: 9.5
-        outputBuffer[2] = __fwd_diff(f)(dpf4).d().val.w;         // Expect: 27.5
-        outputBuffer[3] = __fwd_diff(f)(dpf3).d().val.y;         // Expect: 40.5
+        outputBuffer[0] = f(dpa.p);                       // Expect: 22.0
+        outputBuffer[1] = __fwd_diff(f)(dpfloat(2.0, 0.5)).d;  // Expect: 9.5
+        outputBuffer[2] = __fwd_diff(f)(dpf4).d.val.w;         // Expect: 27.5
+        outputBuffer[3] = __fwd_diff(f)(dpf3).d.val.y;         // Expect: 40.5
     }
 }
diff --git a/tests/autodiff/getter-setter-multi.slang b/tests/autodiff/getter-setter-multi.slang
index 85b6a3c63..9055e860a 100644
--- a/tests/autodiff/getter-setter-multi.slang
+++ b/tests/autodiff/getter-setter-multi.slang
@@ -67,8 +67,8 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
 
         dpA dpa = dpA(a, b);
 
-        outputBuffer[0] = __fwd_diff(f)(dpa).d().z.z;  // Expect: 0.5
-        outputBuffer[1] = __fwd_diff(f)(dpa).d().k[5]; // Expect: 1
-        outputBuffer[2] = __fwd_diff(f)(dpa).d().k[2]; // Expect: 1.5
+        outputBuffer[0] = __fwd_diff(f)(dpa).d.z.z;  // Expect: 0.5
+        outputBuffer[1] = __fwd_diff(f)(dpa).d.k[5]; // Expect: 1
+        outputBuffer[2] = __fwd_diff(f)(dpa).d.k[2]; // Expect: 1.5
     }
 }
diff --git a/tests/autodiff/getter-setter.slang b/tests/autodiff/getter-setter.slang
index a9e01b8c6..705604bbb 100644
--- a/tests/autodiff/getter-setter.slang
+++ b/tests/autodiff/getter-setter.slang
@@ -60,6 +60,6 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
 
         dpA dpa = dpA(a, b);
 
-        outputBuffer[0] = __fwd_diff(f)(dpa).d().z;                    // Expect: 1
+        outputBuffer[0] = __fwd_diff(f)(dpa).d.z;                    // Expect: 1
     }
 }
diff --git a/tests/autodiff/high-order-forward-diff.slang b/tests/autodiff/high-order-forward-diff.slang
index 94b4d2a0d..be0029419 100644
--- a/tests/autodiff/high-order-forward-diff.slang
+++ b/tests/autodiff/high-order-forward-diff.slang
@@ -19,7 +19,7 @@ float f(float x)
 [ForwardDifferentiable]
 float df(float x)
 {
-    return __fwd_diff(f)(DifferentialPair<float>(x, 1.0)).d();
+    return __fwd_diff(f)(DifferentialPair<float>(x, 1.0)).d;
 }
 
 [numthreads(1, 1, 1)]
@@ -28,5 +28,5 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
     // Given f(x) = x^4,
     // f''(x) = 12 * x^2
     // Expect f''(4) = 192
-    outputBuffer[0] = __fwd_diff(df)(DifferentialPair<float>(4.0, 1.0)).d();
+    outputBuffer[0] = __fwd_diff(df)(DifferentialPair<float>(4.0, 1.0)).d;
 }
diff --git a/tests/autodiff/imported-custom-jvp.slang b/tests/autodiff/imported-custom-jvp.slang
index b4a2a9d5f..92f2ff89c 100644
--- a/tests/autodiff/imported-custom-jvp.slang
+++ b/tests/autodiff/imported-custom-jvp.slang
@@ -21,6 +21,6 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
         dpfloat dpa = dpfloat(2.0, 1.0);
         dpfloat dpb = dpfloat(1.5, 1.0);
 
-        outputBuffer[0] = __fwd_diff(f)(dpa).d();                      // Expect: 2
+        outputBuffer[0] = __fwd_diff(f)(dpa).d;                      // Expect: 2
     }
 }
diff --git a/tests/autodiff/inout-parameters-jvp.slang b/tests/autodiff/inout-parameters-jvp.slang
index 9935a9c59..e5720d412 100644
--- a/tests/autodiff/inout-parameters-jvp.slang
+++ b/tests/autodiff/inout-parameters-jvp.slang
@@ -37,12 +37,12 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
 
     __fwd_diff(h)(dpfloat(x, dx), dpfloat(y, dy), dpz);
 
-    outputBuffer[0] = dpz.d(); // Expect: 12.0
-    outputBuffer[1] = dpz.p(); // Expect: 6.75
+    outputBuffer[0] = dpz.d; // Expect: 12.0
+    outputBuffer[1] = dpz.p; // Expect: 6.75
 
     __fwd_diff(g)(dpfloat(x, dx), dpfloat(y, dy), dpz);
 
-    outputBuffer[2] = dpz.d(); // Expect: 21.5
-    outputBuffer[3] = dpz.p(); // Expect: 12.5
+    outputBuffer[2] = dpz.d; // Expect: 21.5
+    outputBuffer[3] = dpz.p; // Expect: 12.5
 
 }
\ No newline at end of file
diff --git a/tests/autodiff/local-redecl-custom-jvp.slang b/tests/autodiff/local-redecl-custom-jvp.slang
index 450e03b5d..7cf5d64e5 100644
--- a/tests/autodiff/local-redecl-custom-jvp.slang
+++ b/tests/autodiff/local-redecl-custom-jvp.slang
@@ -11,8 +11,8 @@ import test_intrinsics;
 dpfloat my_pow_jvp(dpfloat x, dpfloat n)
 {
     return dpfloat(
-        pow(x.p(), n.p()),
-        x.d() * n.p() * pow(x.p(), n.p()-1) + n.d() * pow(x.p(), n.p()) * log(x.p()));
+        pow(x.p, n.p),
+        x.d * n.p * pow(x.p, n.p-1) + n.d * pow(x.p, n.p) * log(x.p));
 }
 
 [ForwardDerivative(my_pow_jvp)]
@@ -25,9 +25,9 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
         dpfloat dpa = dpfloat(5.0, 1.0);
         dpfloat dpn = dpfloat(2, 0.0);
 
-        outputBuffer[0] = __fwd_diff(_pow)(dpa, dpn).d();        // Expect: 10.0
+        outputBuffer[0] = __fwd_diff(_pow)(dpa, dpn).d;        // Expect: 10.0
         outputBuffer[1] = __fwd_diff(_pow)(
-            dpfloat(dpa.p(), 0.0),
-            dpfloat(dpn.p(), 1.0)).d();                     // Expect: 40.23595
+            dpfloat(dpa.p, 0.0),
+            dpfloat(dpn.p, 1.0)).d;                     // Expect: 40.23595
     }
 }
diff --git a/tests/autodiff/nested-jvp.slang b/tests/autodiff/nested-jvp.slang
index a66adaf8e..09a55a88d 100644
--- a/tests/autodiff/nested-jvp.slang
+++ b/tests/autodiff/nested-jvp.slang
@@ -22,16 +22,16 @@ float max_(float x, float y)
 dpfloat pow_jvp(dpfloat x, dpfloat n)
 {
     return dpfloat(
-        pow(x.p(), n.p()),
-        x.d() * n.p() * pow(x.p(), n.p()-1) + 
-            ((n.d() != 0.0) ? (n.d() * pow(x.p(), n.p()) * log(x.p())) : 0.0));
+        pow(x.p, n.p),
+        x.d * n.p * pow(x.p, n.p-1) + 
+            ((n.d != 0.0) ? (n.d * pow(x.p, n.p) * log(x.p)) : 0.0));
 }
 
 dpfloat max_jvp(dpfloat x, dpfloat y)
 {
     return dpfloat(
-        max(x.p(), y.p()),
-        (x.p() > y.p()) ? x.d() : y.d());
+        max(x.p, y.p),
+        (x.p > y.p) ? x.d : y.d);
 }
 
 
@@ -63,7 +63,7 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
         outputBuffer[0] = __fwd_diff(fresnel)(
             dpfloat3(f0, d_f0),
             dpfloat3(f90, d_f90),
-            dpfloat(cosTheta, d_cosTheta)).d().y; // Expect: -0.031250
+            dpfloat(cosTheta, d_cosTheta)).d.y; // Expect: -0.031250
 
         float a = 1.0;
         float b = -0.4;
@@ -76,13 +76,13 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
         outputBuffer[1] = __fwd_diff(g)(
             dpfloat(a, da),
             dpfloat(b, db),
-            dpfloat(c, dc)).d();                 // Expect: -0.24375
+            dpfloat(c, dc)).d;                 // Expect: -0.24375
 
         outputBuffer[2] = g(a, b, c);       // Expect: 0.95625
 
         outputBuffer[3] = __fwd_diff(g)(
             dpfloat(a, da),
             dpfloat(b, db),
-            dpfloat(3.0, dc)).d();               // Expect: -0.4;
+            dpfloat(3.0, dc)).d;               // Expect: -0.4;
     }
 }
diff --git a/tests/autodiff/out-parameters-jvp.slang b/tests/autodiff/out-parameters-jvp.slang
index 31419489c..4faf18555 100644
--- a/tests/autodiff/out-parameters-jvp.slang
+++ b/tests/autodiff/out-parameters-jvp.slang
@@ -26,6 +26,6 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
     dpfloat dresult;
     __fwd_diff(h)(dpfloat(x, dx), dpfloat(y, dy), dresult);
 
-    outputBuffer[0] = dresult.d(); // Expect: 9.5
+    outputBuffer[0] = dresult.d; // Expect: 9.5
 
 }
\ No newline at end of file
diff --git a/tests/autodiff/overloads-jvp.slang b/tests/autodiff/overloads-jvp.slang
index 730fe6e2d..46dc94ee7 100644
--- a/tests/autodiff/overloads-jvp.slang
+++ b/tests/autodiff/overloads-jvp.slang
@@ -34,10 +34,10 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
         dpfloat dpa = dpfloat(2.0, 1.0);
         dpfloat3 dpf3 = dpfloat3(float3(1.0, 3.0, 5.0), float3(0.5, 1.5, 2.5));
 
-        outputBuffer[0] = f(dpa.p());                               // Expect: 6
-        outputBuffer[1] = f(dpf3.p());                              // Expect: 8
-        outputBuffer[2] = __fwd_diff(f)(dpf3).d();                       // Expect: 5.5
-        outputBuffer[3] = __fwd_diff(f)(dpa).d();                        // Expect: 5
-        outputBuffer[4] = __fwd_diff(g)(dpa).d();                        // Expect: 11.0
+        outputBuffer[0] = f(dpa.p);                               // Expect: 6
+        outputBuffer[1] = f(dpf3.p);                              // Expect: 8
+        outputBuffer[2] = __fwd_diff(f)(dpf3).d;                       // Expect: 5.5
+        outputBuffer[3] = __fwd_diff(f)(dpa).d;                        // Expect: 5
+        outputBuffer[4] = __fwd_diff(g)(dpa).d;                        // Expect: 11.0
     }
 }
diff --git a/tests/autodiff/vector-arithmetic-jvp.slang b/tests/autodiff/vector-arithmetic-jvp.slang
index 62f6e2d50..90e2ceca6 100644
--- a/tests/autodiff/vector-arithmetic-jvp.slang
+++ b/tests/autodiff/vector-arithmetic-jvp.slang
@@ -52,18 +52,18 @@ void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
         float4 a4 = float4(2.0, 1.0, 0.0, 2.0);
         float4 b4 = float4(1.5, -2.0, 1.0, 1.5);
 
-        outputBuffer[0] = __fwd_diff(f)(dpfloat3(a, da)).d().z;    // Expect: 1
+        outputBuffer[0] = __fwd_diff(f)(dpfloat3(a, da)).d.z;    // Expect: 1
 
         outputBuffer[1] = __fwd_diff(g)(
             dpfloat3(a, da),
-            dpfloat3(b, float3(2.0, 1.0, 0.0))).d().y;        // Expect: 8
+            dpfloat3(b, float3(2.0, 1.0, 0.0))).d.y;        // Expect: 8
 
         outputBuffer[2] = __fwd_diff(h)(
             dpfloat2(a2, float2(1.0, 0.0)),
-            dpfloat2(b2, float2(1.0, 1.0))).d().x;            // Expect: 8
+            dpfloat2(b2, float2(1.0, 1.0))).d.x;            // Expect: 8
 
         outputBuffer[3] = __fwd_diff(j)(
             dpfloat4(a4, float4(1.0)),
-            dpfloat4(b4, float4(2.0))).d().w;                 // Expect: 9
+            dpfloat4(b4, float4(2.0))).d.w;                 // Expect: 9
     }
 }
diff --git a/tests/autodiff/vector-swizzle-jvp.slang b/tests/autodiff/vector-swizzle-jvp.slang
index 99f305425..1bbf94bfc 100644
--- a/tests/autodiff/vector-swizzle-jvp.slang
+++ b/tests/autodiff/vector-swizzle-jvp.slang
@@ -29,16 +29,16 @@ void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
         float3 a = float3(2.0, 2.0, 2.0);
         float3 da = float3(1.0, 0.5, 1.0);
 
-        outputBuffer[0] = __fwd_diff(f)(dpfloat3(a, da)).d().x;  // Expect: 1
-        outputBuffer[1] = __fwd_diff(f)(dpfloat3(a, da)).d().y;  // Expect: 0.5
+        outputBuffer[0] = __fwd_diff(f)(dpfloat3(a, da)).d.x;  // Expect: 1
+        outputBuffer[1] = __fwd_diff(f)(dpfloat3(a, da)).d.y;  // Expect: 0.5
         
         float3 x = float3(0.5, 2.0, 0.5);
         float4 y = float4(-1.5, 1.0, 4.0, 2.0);
         float3 dx = float3(1.0, 0.0, -1.0);
         float4 dy = float4(0.0, 0.5, -0.25, 1.0);
 
-        outputBuffer[2] = __fwd_diff(g)(dpfloat3(x, dx), dpfloat4(y, dy)).d().x; // Expect: -2.25
-        outputBuffer[3] = __fwd_diff(g)(dpfloat3(x, dx), dpfloat4(y, dy)).d().y; // Expect: 0.5
+        outputBuffer[2] = __fwd_diff(g)(dpfloat3(x, dx), dpfloat4(y, dy)).d.x; // Expect: -2.25
+        outputBuffer[3] = __fwd_diff(g)(dpfloat3(x, dx), dpfloat4(y, dy)).d.y; // Expect: 0.5
         
     }
 }