Cleanup builtin arithmetic interfaces. (#3317)

* wip: clean up IArithmetic

* wip.

* Cleanup builtin arithmetic interfaces.

* Fix.

* Fixes.

* Fix.

* Fix.

* Fix.

---------

Co-authored-by: Yong He <yhe@nvidia.com>

3 files changed, 45 insertions, 14 deletions

diff --git a/tests/autodiff/generic-constructor.slang b/tests/autodiff/generic-constructor.slang
new file mode 100644
index 000000000..aad9824ec
--- /dev/null
+++ b/tests/autodiff/generic-constructor.slang
@@ -0,0 +1,39 @@
+//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-slang -compute -shaderobj -output-using-type
+//TEST(compute, vulkan):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-vk -compute -shaderobj -output-using-type
+
+//TEST_INPUT:ubuffer(data=[0 0 0 0 0], stride=4):out,name=outputBuffer
+RWStructuredBuffer<float> outputBuffer;
+
+interface IFoo : IDifferentiable
+{
+    [Differentiable]
+    __init(Differential v);
+}
+
+struct Impl : IFoo
+{
+    float x;
+
+    [Differentiable]
+    __init(Differential v)
+    {
+        x = v.x;
+    }
+}
+
+[Differentiable]
+float test(float x)
+{
+    Impl.Differential v0 = { x };
+    var v1 = Impl(v0);
+    return v1.x * v1.x;
+}
+
+[numthreads(1,1,1)]
+void computeMain(uint tid : SV_DispatchThreadID)
+{
+    var p = diffPair(3.0, 0.0);
+    bwd_diff(test)(p, 1.0);
+    outputBuffer[tid] = p.d;
+    // CHECK: 6.0
+}
diff --git a/tests/ir/loop-inversion.slang b/tests/ir/loop-inversion.slang
index 03bdcc340..7e218a62a 100644
--- a/tests/ir/loop-inversion.slang
+++ b/tests/ir/loop-inversion.slang
@@ -19,7 +19,7 @@ RWStructuredBuffer<int> outputBuffer;
 // A standard loop
 // CHECK-LABEL: int a_{{.*}}()
 // CHECK-NOT: break;
-// CHECK: int j_{{.*}} = j_{{.*}} + [[i:i_[0-9]+]]
+// CHECK: int {{.*}} = j_{{.*}} + [[i:i_[0-9]+]]
 // CHECK: [[i]] + int(1);
 // CHECK: if(
 // CHECK: break;
@@ -35,7 +35,7 @@ int a()
 // A vanilla while loop
 // CHECK-LABEL: int b_{{.*}}()
 // CHECK-NOT: break;
-// CHECK: int j_{{.*}} = j_{{.*}} + [[i:i_[0-9]+]]
+// CHECK: int {{.*}} = j_{{.*}} + [[i:i_[0-9]+]]
 // CHECK: [[i]] + int(1);
 // CHECK: if(
 // CHECK: break;
@@ -55,7 +55,7 @@ int b()
 // A while loop with a break on the false branch
 // CHECK-LABEL: int c_{{.*}}()
 // CHECK-NOT: break;
-// CHECK: int j_{{.*}} = j_{{.*}} + [[i:i_[0-9]+]]
+// CHECK: int {{.*}} = j_{{.*}} + [[i:i_[0-9]+]]
 // CHECK: [[i]] + int(1);
 // CHECK: if(
 // CHECK: break;
@@ -79,7 +79,7 @@ int c()
 // A while loop with a break on the true branch
 // CHECK-LABEL: int d_{{.*}}()
 // CHECK-NOT: break;
-// CHECK: int j_{{.*}} = j_{{.*}} + [[i:i_[0-9]+]]
+// CHECK: int {{.*}} = j_{{.*}} + [[i:i_[0-9]+]]
 // CHECK: [[i]] + int(1);
 // CHECK: if(
 // CHECK: break;
diff --git a/tests/language-feature/generics/iarray.slang b/tests/language-feature/generics/iarray.slang
index c2314f106..b66c3ab27 100644
--- a/tests/language-feature/generics/iarray.slang
+++ b/tests/language-feature/generics/iarray.slang
@@ -1,7 +1,7 @@
 //TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK): -shaderobj -output-using-type
 //TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK): -vk -shaderobj -output-using-type
 
-T sum<T:__BuiltinArithmeticType>(IArray<T> array)
+T sum<T:IFloat>(IArray<T> array)
 {
     T result = T(0);
     for (int i = 0; i < array.getCount(); i++)
@@ -10,15 +10,7 @@ T sum<T:__BuiltinArithmeticType>(IArray<T> array)
     }
     return result;
 }
-vector<T,N> sum<T:__BuiltinArithmeticType, let N:int>(IArray<vector<T,N>> array)
-{
-    vector<T,N> result = vector<T,N>(T(0));
-    for (int i = 0; i < array.getCount(); i++)
-    {
-        result = result + array[i];
-    }
-    return result;
-}
+
 //TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
 RWStructuredBuffer<float> outputBuffer;