Add distance tests

test/Feature/HLSLLib/distance.32.test

@@ -0,0 +1,96 @@
+#--- source.hlsl
+
+StructuredBuffer<float4> X : register(t0);
+StructuredBuffer<float4> Y : register(t1);
+
+RWStructuredBuffer<float> Result : register(u2);
+
+[numthreads(1,1,1)]
+void main() {
+  // distance ({1.125}, {2.375}) = 1.25
+  float R0 = distance(X[0].x, Y[0].x);
+  Result[0] = R0;
+  float R0_constant = distance(1.125, 2.375);
+  Result[1] = R0_constant;
+
+  // distance({1.125, 2.5}, {2.375, 5.25}) = 3.02076
+  float R1 = distance(X[0].xy, Y[0].xy);
+  Result[2] = R1;
+  float R1_constant = distance(float2(1.125, 2.5), float2(2.375, 5.25));
+  Result[3] = R1_constant;
+
+  // distance({1.125, 2.5, 4.75}, {2.375, 5.25, 8.375}) = 4.71865
+  float R2 = distance(float3(1.125, 2.5, 4.75), float3(2.375, 5.25, 8.375));
+  Result[4] = R2;
+  float R2_constant = distance(X[0].xyz, Y[0].xyz);
+  Result[5] = R2_constant;
+
+  // distance({1.125, 2.5, 4.75, 6.625}, {2.375, 5.25, 8.375, 5.30}) = 4.90115
+  float R3 = distance(X[0].xyzw, Y[0].xyzw);
+  Result[6] = R3;
+  float R3_constant = distance(float4(1.125, 2.5, 4.75, 6.625), float4(1.125, 2.5, 4.75, 6.625));
+  Result[7] = R3;
+}
+
+//--- pipeline.yaml
+
+---
+Shaders:
+  - Stage: Compute
+    Entry: main
+    DispatchSize: [1, 1, 1]
+Buffers:
+  - Name: X
+    Format: Float32
+    Stride: 16
+    Data: [ 1.125, 2.5, 4.75, 6.625 ]
+  - Name: Y
+    Format: Float32
+    Stride: 16
+    Data: [ 2.375, 5.25, 8.375, 5.30 ] 
+  - Name: Result
+    Format: Float32
+    Stride: 4
+    ZeroInitSize: 32
+  - Name: ExpectedResult
+    Format: Float32
+    Stride: 4
+    Data: [ 1.25, 1.25, 3.02076, 3.02076, 4.71865, 4.71865, 4.90115, 4.90115 ]
+Results:
+  - Result: CheckResult
+    Rule: BufferFloatEpsilon
+    Epsilon: .0008
+    Actual: Result
+    Expected: ExpectedResult
+DescriptorSets:
+  - Resources:
+    - Name: X
+      Kind: StructuredBuffer
+      DirectXBinding:
+        Register: 0
+        Space: 0
+      VulkanBinding:
+        Binding: 0
+    - Name: Y
+      Kind: StructuredBuffer
+      DirectXBinding:
+        Register: 1
+        Space: 0
+      VulkanBinding:
+        Binding: 1
+    - Name: Result
+      Kind: RWStructuredBuffer
+      DirectXBinding:
+        Register: 2
+        Space: 0
+      VulkanBinding:
+        Binding: 2
+...
+#--- end
+
+# UNSUPPORTED: Clang-Vulkan
+# Clang-Vulkan is unsupported because of two validation errors
+# This issue tracks its resolution: https://github.com/llvm/offload-test-suite/issues/285
+# RUN: split-file %s %t
+# RUN: %dxc_target -T cs_6_5 -Fo %t.o %t/source.hlsl
+# RUN: %offloader %t/pipeline.yaml %t.o

test/Feature/HLSLLib/distance.fp16.test

@@ -0,0 +1,97 @@
+#--- source.hlsl
+
+StructuredBuffer<half4> X : register(t0);
+StructuredBuffer<half4> Y : register(t1);
+
+RWStructuredBuffer<half> Result : register(u2);
+
+[numthreads(1,1,1)]
+void main() {
+  // distance ({1.125}, {2.375}) = 1.25
+  half R0 = distance(X[0].x, Y[0].x);
+  Result[0] = R0;
+  half R0_constant = distance(half(1.125), half(2.375));
+  Result[1] = R0_constant;
+
+  // distance({1.125, 2.5}, {2.375, 5.25}) = 3.02076
+  half R1 = distance(X[0].xy, Y[0].xy);
+  Result[2] = R1;
+  half R1_constant = distance(half2(1.125, 2.5), half2(2.375, 5.25));
+  Result[3] = R1_constant;
+
+  // distance({1.125, 2.5, 4.75}, {2.375, 5.25, 8.375}) = 4.71865
+  half R2 = distance(X[0].xyz, Y[0].xyz);
+  Result[4] = R2;
+  half R2_constant = distance(half3(1.125, 2.5, 4.75), half3(2.375, 5.25, 8.375));
+  Result[5] = R2_constant;
+
+  // distance({1.125, 2.5, 4.75, 6.625}, {2.375, 5.25, 8.375, 5.30}) = 4.90115
+  half R3 = distance(X[0].xyzw, Y[0].xyzw);
+  Result[6] = R3;
+  half R3_constant = distance(half4(1.125, 2.5, 4.75, 6.625), half4(2.375, 5.25, 8.375, 5.30));
+  Result[7] = R3_constant;
+}
+
+//--- pipeline.yaml
+
+---
+Shaders:
+  - Stage: Compute
+    Entry: main
+    DispatchSize: [1, 1, 1]
+Buffers:
+  - Name: X
+    Format: Float16
+    Stride: 8
+    Data: [ 0x3c80, 0x4100, 0x44c0, 0x46a0 ]
+  - Name: Y
+    Format: Float16
+    Stride: 8
+    Data: [ 0x40c0, 0x4540, 0x4830, 0x454d ] 
+  - Name: Result
+    Format: Float16
+    Stride: 2
+    ZeroInitSize: 16
+  - Name: ExpectedResult
+    Format: Float16
+    Stride: 2
+    Data: [ 0x3d00, 0x3d00, 0x420b, 0x420b, 0x44b8, 0x44b8, 0x44e7, 0x44e7 ]
+Results:
+  - Result: CheckResult
+    Rule: BufferFloatULP
+    ULPT: 5
+    Actual: Result
+    Expected: ExpectedResult
+DescriptorSets:
+  - Resources:
+    - Name: X
+      Kind: StructuredBuffer
+      DirectXBinding:
+        Register: 0
+        Space: 0
+      VulkanBinding:
+        Binding: 0
+    - Name: Y
+      Kind: StructuredBuffer
+      DirectXBinding:
+        Register: 1
+        Space: 0
+      VulkanBinding:
+        Binding: 1
+    - Name: Result
+      Kind: RWStructuredBuffer
+      DirectXBinding:
+        Register: 2
+        Space: 0
+      VulkanBinding:
+        Binding: 2
+...
+#--- end
+
+# UNSUPPORTED: Clang-Vulkan
+# Clang-Vulkan is unsupported because of two validation errors
+# This issue tracks its resolution: https://github.com/llvm/offload-test-suite/issues/285
+# REQUIRES: Half
+# RUN: split-file %s %t
+# RUN: %dxc_target -enable-16bit-types -T cs_6_5 -Fo %t.o %t/source.hlsl
+# RUN: %offloader %t/pipeline.yaml %t.o