[SPIR-V][vk::SampledTexture] #12. Support vk::SampledTexture3D type.

include/dxc/dxcapi.internal.h

@@ -146,7 +146,8 @@ enum LEGAL_INTRINSIC_COMPTYPES {
   LICOMPTYPE_VK_SAMPLED_TEXTURE2D_ARRAY = 60,
   LICOMPTYPE_VK_SAMPLED_TEXTURE2DMS = 61,
   LICOMPTYPE_VK_SAMPLED_TEXTURE2DMS_ARRAY = 62,
-  LICOMPTYPE_COUNT = 63
+  LICOMPTYPE_VK_SAMPLED_TEXTURE3D = 63,
+  LICOMPTYPE_COUNT = 64
 #else
   LICOMPTYPE_COUNT = 56
 #endif

tools/clang/lib/SPIRV/LowerTypeVisitor.cpp

@@ -864,7 +864,9 @@ const SpirvType *LowerTypeVisitor::lowerVkTypeInVkNamespace(
     constexpr size_t sampledTexturePrefixLength = sizeof("SampledTexture") - 1;
     StringRef suffix = name.drop_front(sampledTexturePrefixLength);
     const spv::Dim dimension =
-        suffix.startswith("1D") ? spv::Dim::Dim1D : spv::Dim::Dim2D;
+        suffix.startswith("1D")
+            ? spv::Dim::Dim1D
+            : (suffix.startswith("2D") ? spv::Dim::Dim2D : spv::Dim::Dim3D);
     const bool isArray = suffix.endswith("Array");
     const bool isMS = suffix.find("MS") != StringRef::npos;
 

tools/clang/lib/SPIRV/SpirvEmitter.cpp

@@ -4417,6 +4417,7 @@ SpirvEmitter::processBufferTextureGetDimensions(const CXXMemberCallExpr *expr) {
       (typeName == "SampledTexture1DArray" && numArgs > 2) ||
       (typeName == "SampledTexture2D" && numArgs > 2) ||
       (typeName == "SampledTexture2DArray" && numArgs > 3) ||
+      (typeName == "SampledTexture3D" && numArgs > 3) ||
       (typeName == "TextureCube" && numArgs > 2) ||
       (typeName == "Texture3D" && numArgs > 3) ||
       (typeName == "Texture1DArray" && numArgs > 2) ||

tools/clang/lib/Sema/SemaHLSL.cpp

@@ -206,6 +206,7 @@ enum ArBasicKind {
   AR_OBJECT_VK_SAMPLED_TEXTURE2D_ARRAY,
   AR_OBJECT_VK_SAMPLED_TEXTURE2DMS,
   AR_OBJECT_VK_SAMPLED_TEXTURE2DMS_ARRAY,
+  AR_OBJECT_VK_SAMPLED_TEXTURE3D,
 #endif // ENABLE_SPIRV_CODEGEN
   // SPIRV change ends
 
@@ -572,6 +573,7 @@ const UINT g_uBasicKindProps[] = {
     BPROP_OBJECT | BPROP_RBUFFER, // AR_OBJECT_VK_SAMPLED_TEXTURE2D_ARRAY
     BPROP_OBJECT | BPROP_RBUFFER, // AR_OBJECT_VK_SAMPLED_TEXTURE2DMS
     BPROP_OBJECT | BPROP_RBUFFER, // AR_OBJECT_VK_SAMPLED_TEXTURE2DMS_ARRAY
+    BPROP_OBJECT | BPROP_RBUFFER, // AR_OBJECT_VK_SAMPLED_TEXTURE3D
 #endif            // ENABLE_SPIRV_CODEGEN
     // SPIRV change ends
 
@@ -1292,6 +1294,8 @@ static const ArBasicKind g_VKSampledTexture2DMSCT[] = {
     AR_OBJECT_VK_SAMPLED_TEXTURE2DMS, AR_BASIC_UNKNOWN};
 static const ArBasicKind g_VKSampledTexture2DMSArrayCT[] = {
     AR_OBJECT_VK_SAMPLED_TEXTURE2DMS_ARRAY, AR_BASIC_UNKNOWN};
+static const ArBasicKind g_VKSampledTexture3DCT[] = {
+    AR_OBJECT_VK_SAMPLED_TEXTURE3D, AR_BASIC_UNKNOWN};
 #endif
 
 // Basic kinds, indexed by a LEGAL_INTRINSIC_COMPTYPES value.
@@ -1361,6 +1365,7 @@ const ArBasicKind *g_LegalIntrinsicCompTypes[] = {
     g_VKSampledTexture2DArrayCT,   // LICOMPTYPE_VK_SAMPLED_TEXTURE2D_ARRAY
     g_VKSampledTexture2DMSCT,      // LICOMPTYPE_VK_SAMPLED_TEXTURE2DMS
     g_VKSampledTexture2DMSArrayCT, // LICOMPTYPE_VK_SAMPLED_TEXTURE2DMS_ARRAY
+    g_VKSampledTexture3DCT,        // LICOMPTYPE_VK_SAMPLED_TEXTURE3D
 #endif
 };
 static_assert(
@@ -1423,7 +1428,7 @@ static const ArBasicKind g_ArBasicKindsAsTypes[] = {
     AR_OBJECT_VK_BUFFER_POINTER, AR_OBJECT_VK_SAMPLED_TEXTURE1D,
     AR_OBJECT_VK_SAMPLED_TEXTURE1D_ARRAY, AR_OBJECT_VK_SAMPLED_TEXTURE2D,
     AR_OBJECT_VK_SAMPLED_TEXTURE2D_ARRAY, AR_OBJECT_VK_SAMPLED_TEXTURE2DMS,
-    AR_OBJECT_VK_SAMPLED_TEXTURE2DMS_ARRAY,
+    AR_OBJECT_VK_SAMPLED_TEXTURE2DMS_ARRAY, AR_OBJECT_VK_SAMPLED_TEXTURE3D,
 #endif // ENABLE_SPIRV_CODEGEN
     // SPIRV change ends
 
@@ -1541,6 +1546,7 @@ static const uint8_t g_ArBasicKindsTemplateCount[] = {
     1, // AR_OBJECT_VK_SAMPLED_TEXTURE2D_ARRAY
     1, // AR_OBJECT_VK_SAMPLED_TEXTURE2DMS
     1, // AR_OBJECT_VK_SAMPLED_TEXTURE2DMS_ARRAY
+    1, // AR_OBJECT_VK_SAMPLED_TEXTURE3D
 #endif // ENABLE_SPIRV_CODEGEN
     // SPIRV change ends
 
@@ -1700,6 +1706,7 @@ static const SubscriptOperatorRecord g_ArBasicKindsSubscripts[] = {
     {3, MipsTrue, SampleFalse},  // AR_OBJECT_VK_SAMPLED_TEXTURE2D_ARRAY
     {2, MipsFalse, SampleTrue},  // AR_OBJECT_VK_SAMPLED_TEXTURE2DMS
     {3, MipsFalse, SampleTrue},  // AR_OBJECT_VK_SAMPLED_TEXTURE2DMS_ARRAY
+    {3, MipsTrue, SampleFalse},  // AR_OBJECT_VK_SAMPLED_TEXTURE3D
 #endif                           // ENABLE_SPIRV_CODEGEN
     // SPIRV change ends
 
@@ -1875,6 +1882,7 @@ static const char *g_ArBasicTypeNames[] = {
     "SampledTexture2DArray",
     "SampledTexture2DMS",
     "SampledTexture2DMSArray",
+    "SampledTexture3D",
 #endif // ENABLE_SPIRV_CODEGEN
     // SPIRV change ends
 
@@ -2555,6 +2563,10 @@ static void GetIntrinsicMethods(ArBasicKind kind,
     *intrinsics = g_VkSampledTexture2DMSArrayMethods;
     *intrinsicCount = _countof(g_VkSampledTexture2DMSArrayMethods);
     break;
+  case AR_OBJECT_VK_SAMPLED_TEXTURE3D:
+    *intrinsics = g_VkSampledTexture3DMethods;
+    *intrinsicCount = _countof(g_VkSampledTexture3DMethods);
+    break;
 #endif
   case AR_OBJECT_HIT_OBJECT:
     *intrinsics = g_DxHitObjectMethods;
@@ -4165,7 +4177,8 @@ class HLSLExternalSource : public ExternalSemaSource {
                  kind == AR_OBJECT_VK_SAMPLED_TEXTURE2D ||
                  kind == AR_OBJECT_VK_SAMPLED_TEXTURE2D_ARRAY ||
                  kind == AR_OBJECT_VK_SAMPLED_TEXTURE2DMS ||
-                 kind == AR_OBJECT_VK_SAMPLED_TEXTURE2DMS_ARRAY) {
+                 kind == AR_OBJECT_VK_SAMPLED_TEXTURE2DMS_ARRAY ||
+                 kind == AR_OBJECT_VK_SAMPLED_TEXTURE3D) {
         if (!m_vkNSDecl)
           continue;
         QualType float4Type =
@@ -5153,6 +5166,9 @@ class HLSLExternalSource : public ExternalSemaSource {
       ResClass = DXIL::ResourceClass::UAV;
       return true;
     case AR_OBJECT_TEXTURE3D:
+#ifdef ENABLE_SPIRV_CODEGEN
+    case AR_OBJECT_VK_SAMPLED_TEXTURE3D:
+#endif
       ResKind = DXIL::ResourceKind::Texture3D;
       ResClass = DXIL::ResourceClass::SRV;
       return true;

tools/clang/test/CodeGenSPIRV/SampledTexture/SampledTexture3D/vk.sampledtexture3d.access.hlsl

@@ -0,0 +1,34 @@
+// RUN: %dxc -T ps_6_7 -E main -fcgl  %s -spirv | FileCheck %s
+// RUN: not %dxc -T ps_6_7 -E main -fcgl  %s -spirv -DERROR 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR
+
+// CHECK: %type_3d_image = OpTypeImage %float 3D 0 0 0 1 Unknown
+// CHECK: %type_sampled_image = OpTypeSampledImage %type_3d_image
+
+vk::SampledTexture3D<float4> tex3d;
+
+struct S { int a; };
+
+void main() {
+  uint3 pos1 = uint3(1, 2, 3);
+
+// CHECK: [[pos1:%[a-zA-Z0-9_]+]] = OpLoad %v3uint %pos1
+// CHECK: [[tex1_load:%[a-zA-Z0-9_]+]] = OpLoad %type_sampled_image %tex3d
+// CHECK: [[tex_image:%[a-zA-Z0-9_]+]] = OpImage %type_3d_image [[tex1_load]]
+// CHECK: [[fetch_result:%[a-zA-Z0-9_]+]] = OpImageFetch %v4float [[tex_image]] [[pos1]] Lod %uint_0
+// CHECK: OpStore %a1 [[fetch_result]]
+  float4 a1 = tex3d[pos1];
+
+#ifdef ERROR
+  S s = { 1 };
+// CHECK-ERROR: error: no viable overloaded operator[]
+  float4 val2 = tex3d[s];
+
+  int2 i2 = int2(1, 2);
+// CHECK-ERROR: error: no viable overloaded operator[]
+  float4 val3 = tex3d[i2];
+
+  int i1 = 1;
+// CHECK-ERROR: error: no viable overloaded operator[]
+  float4 val4 = tex3d[i1];
+#endif
+}

tools/clang/test/CodeGenSPIRV/SampledTexture/SampledTexture3D/vk.sampledtexture3d.calculate-lod-unclamped.hlsl

@@ -0,0 +1,18 @@
+// RUN: %dxc -T ps_6_8 -E main -fcgl  %s -spirv | FileCheck %s
+
+// CHECK: OpCapability ImageQuery
+
+// CHECK: [[type_3d_image:%[a-zA-Z0-9_]+]] = OpTypeImage %float 3D 0 0 0 1 Unknown
+// CHECK: [[type_3d_sampled_image:%[a-zA-Z0-9_]+]] = OpTypeSampledImage [[type_3d_image]]
+
+vk::SampledTexture3D<float4> tex3d;
+
+void main() {
+  float3 xyz = float3(0.5, 0.5, 0.5);
+
+// CHECK:          [[tex1_load:%[a-zA-Z0-9_]+]] = OpLoad [[type_3d_sampled_image]] %tex3d
+// CHECK-NEXT: [[xyz_load:%[a-zA-Z0-9_]+]] = OpLoad %v3float %xyz
+// CHECK-NEXT: [[query:%[a-zA-Z0-9_]+]] = OpImageQueryLod %v2float [[tex1_load]] [[xyz_load]]
+// CHECK-NEXT:        {{%[0-9]+}} = OpCompositeExtract %float [[query]] 1
+  float lod1 = tex3d.CalculateLevelOfDetailUnclamped(xyz);
+}

tools/clang/test/CodeGenSPIRV/SampledTexture/SampledTexture3D/vk.sampledtexture3d.calculate-lod.hlsl

@@ -0,0 +1,18 @@
+// RUN: %dxc -T ps_6_0 -E main -fcgl  %s -spirv | FileCheck %s
+
+// CHECK: OpCapability ImageQuery
+
+// CHECK: [[type_3d_image:%[a-zA-Z0-9_]+]] = OpTypeImage %float 3D 0 0 0 1 Unknown
+// CHECK: [[type_3d_sampled_image:%[a-zA-Z0-9_]+]] = OpTypeSampledImage [[type_3d_image]]
+
+vk::SampledTexture3D<float4> tex3d;
+
+void main() {
+  float3 xyz = float3(0.5, 0.5, 0.5);
+
+// CHECK:          [[tex1:%[a-zA-Z0-9_]+]] = OpLoad [[type_3d_sampled_image]] %tex3d
+// CHECK-NEXT: [[xyz_load:%[a-zA-Z0-9_]+]] = OpLoad %v3float %xyz
+// CHECK-NEXT: [[query:%[a-zA-Z0-9_]+]] = OpImageQueryLod %v2float [[tex1]] [[xyz_load]]
+// CHECK-NEXT:        {{%[0-9]+}} = OpCompositeExtract %float [[query]] 0
+  float lod = tex3d.CalculateLevelOfDetail(xyz);
+}

tools/clang/test/CodeGenSPIRV/SampledTexture/SampledTexture3D/vk.sampledtexture3d.get-dimensions.hlsl

@@ -0,0 +1,113 @@
+// RUN: %dxc -T ps_6_0 -E main -fcgl  %s -spirv | FileCheck %s
+// RUN: not %dxc -T ps_6_0 -E main -fcgl  %s -spirv -DERROR 2>&1 | FileCheck %s --check-prefix=ERROR
+
+// CHECK: OpCapability ImageQuery
+
+// CHECK: [[type_3d_image:%[a-zA-Z0-9_]+]] = OpTypeImage %float 3D 0 0 0 1 Unknown
+// CHECK: [[type_3d_sampled_image:%[a-zA-Z0-9_]+]] = OpTypeSampledImage [[type_3d_image]]
+
+vk::SampledTexture3D<float4> tex3d;
+
+void main() {
+  uint mipLevel = 1;
+  uint width, height, depth, numLevels;
+
+// CHECK:             [[t1_load:%[0-9]+]] = OpLoad [[type_3d_sampled_image]] %tex3d
+// CHECK-NEXT:   [[image1:%[0-9]+]] = OpImage [[type_3d_image]] [[t1_load]]
+// CHECK-NEXT:   [[query1:%[0-9]+]] = OpImageQuerySizeLod %v3uint [[image1]] %int_0
+// CHECK-NEXT: [[query1_0:%[0-9]+]] = OpCompositeExtract %uint [[query1]] 0
+// CHECK-NEXT:                      OpStore %width [[query1_0]]
+// CHECK-NEXT: [[query1_1:%[0-9]+]] = OpCompositeExtract %uint [[query1]] 1
+// CHECK-NEXT:                      OpStore %height [[query1_1]]
+// CHECK-NEXT: [[query1_2:%[0-9]+]] = OpCompositeExtract %uint [[query1]] 2
+// CHECK-NEXT:                      OpStore %depth [[query1_2]]
+  tex3d.GetDimensions(width, height, depth);
+
+// CHECK:             [[t2_load:%[0-9]+]] = OpLoad [[type_3d_sampled_image]] %tex3d
+// CHECK-NEXT:   [[image2:%[0-9]+]] = OpImage [[type_3d_image]] [[t2_load]]
+// CHECK-NEXT:       [[mip:%[0-9]+]] = OpLoad %uint %mipLevel
+// CHECK-NEXT:   [[query2:%[0-9]+]] = OpImageQuerySizeLod %v3uint [[image2]] [[mip]]
+// CHECK-NEXT: [[query2_0:%[0-9]+]] = OpCompositeExtract %uint [[query2]] 0
+// CHECK-NEXT:                      OpStore %width [[query2_0]]
+// CHECK-NEXT: [[query2_1:%[0-9]+]] = OpCompositeExtract %uint [[query2]] 1
+// CHECK-NEXT:                      OpStore %height [[query2_1]]
+// CHECK-NEXT: [[query2_2:%[0-9]+]] = OpCompositeExtract %uint [[query2]] 2
+// CHECK-NEXT:                      OpStore %depth [[query2_2]]
+// CHECK-NEXT: [[query_level_2:%[0-9]+]] = OpImageQueryLevels %uint [[image2]]
+// CHECK-NEXT:                      OpStore %numLevels [[query_level_2]]
+  tex3d.GetDimensions(mipLevel, width, height, depth, numLevels);
+
+  float f_width, f_height, f_depth, f_numLevels;
+// CHECK:             [[t3_load:%[0-9]+]] = OpLoad [[type_3d_sampled_image]] %tex3d
+// CHECK-NEXT:   [[image3:%[0-9]+]] = OpImage [[type_3d_image]] [[t3_load]]
+// CHECK-NEXT:   [[query3:%[0-9]+]] = OpImageQuerySizeLod %v3uint [[image3]] %int_0
+// CHECK-NEXT: [[query3_0:%[0-9]+]] = OpCompositeExtract %uint [[query3]] 0
+// CHECK-NEXT: [[f_query3_0:%[0-9]+]] = OpConvertUToF %float [[query3_0]]
+// CHECK-NEXT:                      OpStore %f_width [[f_query3_0]]
+// CHECK-NEXT: [[query3_1:%[0-9]+]] = OpCompositeExtract %uint [[query3]] 1
+// CHECK-NEXT: [[f_query3_1:%[0-9]+]] = OpConvertUToF %float [[query3_1]]
+// CHECK-NEXT:                      OpStore %f_height [[f_query3_1]]
+// CHECK-NEXT: [[query3_2:%[0-9]+]] = OpCompositeExtract %uint [[query3]] 2
+// CHECK-NEXT: [[f_query3_2:%[0-9]+]] = OpConvertUToF %float [[query3_2]]
+// CHECK-NEXT:                      OpStore %f_depth [[f_query3_2]]
+  tex3d.GetDimensions(f_width, f_height, f_depth);
+
+// CHECK:             [[t4_load:%[0-9]+]] = OpLoad [[type_3d_sampled_image]] %tex3d
+// CHECK-NEXT:   [[image4:%[0-9]+]] = OpImage [[type_3d_image]] [[t4_load]]
+// CHECK-NEXT:      [[mip4:%[0-9]+]] = OpLoad %uint %mipLevel
+// CHECK-NEXT:  [[query4:%[0-9]+]] = OpImageQuerySizeLod %v3uint [[image4]] [[mip4]]
+// CHECK-NEXT: [[query4_0:%[0-9]+]] = OpCompositeExtract %uint [[query4]] 0
+// CHECK-NEXT: [[f_query4_0:%[0-9]+]] = OpConvertUToF %float [[query4_0]]
+// CHECK-NEXT:                      OpStore %f_width [[f_query4_0]]
+// CHECK-NEXT: [[query4_1:%[0-9]+]] = OpCompositeExtract %uint [[query4]] 1
+// CHECK-NEXT: [[f_query4_1:%[0-9]+]] = OpConvertUToF %float [[query4_1]]
+// CHECK-NEXT:                      OpStore %f_height [[f_query4_1]]
+// CHECK-NEXT: [[query4_2:%[0-9]+]] = OpCompositeExtract %uint [[query4]] 2
+// CHECK-NEXT: [[f_query4_2:%[0-9]+]] = OpConvertUToF %float [[query4_2]]
+// CHECK-NEXT:                      OpStore %f_depth [[f_query4_2]]
+// CHECK-NEXT: [[query_level_4:%[0-9]+]] = OpImageQueryLevels %uint [[image4]]
+// CHECK-NEXT: [[f_query_level_4:%[0-9]+]] = OpConvertUToF %float [[query_level_4]]
+// CHECK-NEXT:                      OpStore %f_numLevels [[f_query_level_4]]
+  tex3d.GetDimensions(mipLevel, f_width, f_height, f_depth, f_numLevels);
+
+  int i_width, i_height, i_depth, i_numLevels;
+// CHECK:             [[t5_load:%[0-9]+]] = OpLoad [[type_3d_sampled_image]] %tex3d
+// CHECK-NEXT:   [[image5:%[0-9]+]] = OpImage [[type_3d_image]] [[t5_load]]
+// CHECK-NEXT:   [[query5:%[0-9]+]] = OpImageQuerySizeLod %v3uint [[image5]] %int_0
+// CHECK-NEXT: [[query5_0:%[0-9]+]] = OpCompositeExtract %uint [[query5]] 0
+// CHECK-NEXT:  [[query5_0_i:%[0-9]+]] = OpBitcast %int [[query5_0]]
+// CHECK-NEXT:                      OpStore %i_width [[query5_0_i]]
+// CHECK-NEXT: [[query5_1:%[0-9]+]] = OpCompositeExtract %uint [[query5]] 1
+// CHECK-NEXT:  [[query5_1_i:%[0-9]+]] = OpBitcast %int [[query5_1]]
+// CHECK-NEXT:                      OpStore %i_height [[query5_1_i]]
+// CHECK-NEXT: [[query5_2:%[0-9]+]] = OpCompositeExtract %uint [[query5]] 2
+// CHECK-NEXT:  [[query5_2_i:%[0-9]+]] = OpBitcast %int [[query5_2]]
+// CHECK-NEXT:                      OpStore %i_depth [[query5_2_i]]
+  tex3d.GetDimensions(i_width, i_height, i_depth);
+
+// CHECK:             [[t6_load:%[0-9]+]] = OpLoad [[type_3d_sampled_image]] %tex3d
+// CHECK-NEXT:   [[image6:%[0-9]+]] = OpImage [[type_3d_image]] [[t6_load]]
+// CHECK-NEXT:      [[mip6:%[0-9]+]] = OpLoad %uint %mipLevel
+// CHECK-NEXT:  [[query6:%[0-9]+]] = OpImageQuerySizeLod %v3uint [[image6]] [[mip6]]
+// CHECK-NEXT: [[query6_0:%[0-9]+]] = OpCompositeExtract %uint [[query6]] 0
+// CHECK-NEXT:  [[query6_0_i:%[0-9]+]] = OpBitcast %int [[query6_0]]
+// CHECK-NEXT:                      OpStore %i_width [[query6_0_i]]
+// CHECK-NEXT: [[query6_1:%[0-9]+]] = OpCompositeExtract %uint [[query6]] 1
+// CHECK-NEXT:  [[query6_1_i:%[0-9]+]] = OpBitcast %int [[query6_1]]
+// CHECK-NEXT:                      OpStore %i_height [[query6_1_i]]
+// CHECK-NEXT: [[query6_2:%[0-9]+]] = OpCompositeExtract %uint [[query6]] 2
+// CHECK-NEXT:  [[query6_2_i:%[0-9]+]] = OpBitcast %int [[query6_2]]
+// CHECK-NEXT:                      OpStore %i_depth [[query6_2_i]]
+// CHECK-NEXT: [[query_level_6:%[0-9]+]] = OpImageQueryLevels %uint [[image6]]
+// CHECK-NEXT: [[query_level_6_i:%[0-9]+]] = OpBitcast %int [[query_level_6]]
+// CHECK-NEXT:                      OpStore %i_numLevels [[query_level_6_i]]
+  tex3d.GetDimensions(mipLevel, i_width, i_height, i_depth, i_numLevels);
+
+#ifdef ERROR
+// ERROR: error: Output argument must be an l-value
+  tex3d.GetDimensions(mipLevel, 0, height, depth, numLevels);
+
+// ERROR: error: Output argument must be an l-value
+  tex3d.GetDimensions(width, 20, depth);
+#endif
+}

tools/clang/test/CodeGenSPIRV/SampledTexture/SampledTexture3D/vk.sampledtexture3d.load.hlsl

@@ -0,0 +1,46 @@
+// RUN: %dxc -T ps_6_0 -E main -fcgl  %s -spirv | FileCheck %s
+
+// CHECK:  [[v3ic:%[0-9]+]] = OpConstantComposite %v3int %int_1 %int_2 %int_3
+
+// CHECK: [[type_3d_image:%[a-zA-Z0-9_]+]] = OpTypeImage %float 3D 0 0 0 1 Unknown
+// CHECK: [[type_3d_sampled_image:%[a-zA-Z0-9_]+]] = OpTypeSampledImage [[type_3d_image]]
+
+vk::SampledTexture3D<float4> tex3d;
+
+float4 main(int4 location4: A) : SV_Target {
+    uint status;
+
+// CHECK:        [[loc:%[0-9]+]] = OpLoad %v4int %location4
+// CHECK-NEXT: [[coord_0:%[0-9]+]] = OpVectorShuffle %v3int [[loc]] [[loc]] 0 1 2
+// CHECK-NEXT:   [[lod_0:%[0-9]+]] = OpCompositeExtract %int [[loc]] 3
+// CHECK-NEXT:    [[tex:%[0-9]+]] = OpLoad [[type_3d_sampled_image]] %tex3d
+// CHECK-NEXT:    [[tex_img:%[0-9]+]] = OpImage [[type_3d_image]] [[tex]]
+// CHECK-NEXT:       {{%[0-9]+}} = OpImageFetch %v4float [[tex_img]] [[coord_0]] Lod [[lod_0]]
+    float4 val1 = tex3d.Load(location4);
+
+// CHECK:        [[loc:%[0-9]+]] = OpLoad %v4int %location4
+// CHECK-NEXT: [[coord_0:%[0-9]+]] = OpVectorShuffle %v3int [[loc]] [[loc]] 0 1 2
+// CHECK-NEXT:   [[lod_0:%[0-9]+]] = OpCompositeExtract %int [[loc]] 3
+// CHECK-NEXT:    [[tex:%[0-9]+]] = OpLoad [[type_3d_sampled_image]] %tex3d
+// CHECK-NEXT:    [[tex_img:%[0-9]+]] = OpImage [[type_3d_image]] [[tex]]
+// CHECK-NEXT:       {{%[0-9]+}} = OpImageFetch %v4float [[tex_img]] [[coord_0]] Lod|ConstOffset [[lod_0]] [[v3ic]]
+    float4 val2 = tex3d.Load(location4, int3(1, 2, 3));
+
+/////////////////////////////////
+/// Using the Status argument ///
+/////////////////////////////////
+
+// CHECK:        [[loc:%[0-9]+]] = OpLoad %v4int %location4
+// CHECK-NEXT: [[coord_0:%[0-9]+]] = OpVectorShuffle %v3int [[loc]] [[loc]] 0 1 2
+// CHECK-NEXT:   [[lod_0:%[0-9]+]] = OpCompositeExtract %int [[loc]] 3
+// CHECK-NEXT:    [[tex:%[0-9]+]] = OpLoad [[type_3d_sampled_image]] %tex3d
+// CHECK-NEXT:    [[tex_img:%[0-9]+]] = OpImage [[type_3d_image]] [[tex]]
+// CHECK-NEXT:[[structResult:%[0-9]+]] = OpImageSparseFetch %SparseResidencyStruct [[tex_img]] [[coord_0]] Lod|ConstOffset [[lod_0]] [[v3ic]]
+// CHECK-NEXT:      [[status:%[0-9]+]] = OpCompositeExtract %uint [[structResult]] 0
+// CHECK-NEXT:                        OpStore %status [[status]]
+// CHECK-NEXT:    [[v4result:%[0-9]+]] = OpCompositeExtract %v4float [[structResult]] 1
+// CHECK-NEXT:                        OpStore %val3 [[v4result]]
+    float4  val3 = tex3d.Load(location4, int3(1, 2, 3), status);
+
+    return 1.0;
+}

tools/clang/test/CodeGenSPIRV/SampledTexture/SampledTexture3D/vk.sampledtexture3d.mips-access.hlsl

@@ -0,0 +1,17 @@
+// RUN: %dxc -T ps_6_7 -E main -fcgl  %s -spirv | FileCheck %s
+
+// CHECK: %type_3d_image = OpTypeImage %float 3D 0 0 0 1 Unknown
+// CHECK: %type_sampled_image = OpTypeSampledImage %type_3d_image
+
+vk::SampledTexture3D<float4> tex3d;
+
+void main() {
+  uint3 pos1 = uint3(1, 2, 3);
+
+// CHECK: [[pos1:%[a-zA-Z0-9_]+]] = OpLoad %v3uint %pos1
+// CHECK: [[tex1_load:%[a-zA-Z0-9_]+]] = OpLoad %type_sampled_image %tex3d
+// CHECK: [[tex_image:%[a-zA-Z0-9_]+]] = OpImage %type_3d_image [[tex1_load]]
+// CHECK: [[fetch_result:%[a-zA-Z0-9_]+]] = OpImageFetch %v4float [[tex_image]] [[pos1]] Lod %uint_2
+// CHECK: OpStore %a1 [[fetch_result]]
+  float4 a1 = tex3d.mips[2][pos1];
+}