[HLSL][DXIL][SPIRV] Implementation of an abstraction for intrinsic se…

…lection of HLSL backends (#87171)

Start of #83882
- `Builtins.td` - add the `hlsl` `all` elementwise builtin.
- `CGBuiltin.cpp` - Show a use case for CGHLSLUtils via an `all`
intrinsic codegen.
- `CGHLSLRuntime.cpp` - move `thread_id` to use CGHLSLUtils.
- `CGHLSLRuntime.h` - Create a macro to help pick the right intrinsic
for the backend.
- `hlsl_intrinsics.h` - Add the `all` api.
- `SemaChecking.cpp` - Add `all` builtin type checking
- `IntrinsicsDirectX.td` - Add the `all` `dx` intrinsic
- `IntrinsicsSPIRV.td` - Add the `all` `spv` intrinsic

Work still needed:
- `SPIRVInstructionSelector.cpp` - Add an implementation of `OpAll` for
`spv_all` intrinsic

clang/include/clang/Basic/Builtins.td

@@ -4587,6 +4587,12 @@ def GetDeviceSideMangledName : LangBuiltin<"CUDA_LANG"> {
 }
 
 // HLSL
+def HLSLAll : LangBuiltin<"HLSL_LANG"> {
+  let Spellings = ["__builtin_hlsl_elementwise_all"];
+  let Attributes = [NoThrow, Const];
+  let Prototype = "bool(...)";
+}
+
 def HLSLAny : LangBuiltin<"HLSL_LANG"> {
   let Spellings = ["__builtin_hlsl_elementwise_any"];
   let Attributes = [NoThrow, Const];

clang/lib/CodeGen/CGBuiltin.cpp

@@ -13,6 +13,7 @@
 #include "ABIInfo.h"
 #include "CGCUDARuntime.h"
 #include "CGCXXABI.h"
+#include "CGHLSLRuntime.h"
 #include "CGObjCRuntime.h"
 #include "CGOpenCLRuntime.h"
 #include "CGRecordLayout.h"
@@ -18172,6 +18173,13 @@ Value *CodeGenFunction::EmitHLSLBuiltinExpr(unsigned BuiltinID,
     return nullptr;
 
   switch (BuiltinID) {
+  case Builtin::BI__builtin_hlsl_elementwise_all: {
+    Value *Op0 = EmitScalarExpr(E->getArg(0));
+    return Builder.CreateIntrinsic(
+        /*ReturnType=*/llvm::Type::getInt1Ty(getLLVMContext()),
+        CGM.getHLSLRuntime().getAllIntrinsic(), ArrayRef<Value *>{Op0}, nullptr,
+        "hlsl.all");
+  }
   case Builtin::BI__builtin_hlsl_elementwise_any: {
     Value *Op0 = EmitScalarExpr(E->getArg(0));
     return Builder.CreateIntrinsic(

clang/lib/CodeGen/CGHLSLRuntime.cpp

@@ -17,8 +17,6 @@
 #include "CodeGenModule.h"
 #include "clang/AST/Decl.h"
 #include "clang/Basic/TargetOptions.h"
-#include "llvm/IR/IntrinsicsDirectX.h"
-#include "llvm/IR/IntrinsicsSPIRV.h"
 #include "llvm/IR/Metadata.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/FormatVariadic.h"
@@ -117,6 +115,10 @@ GlobalVariable *replaceBuffer(CGHLSLRuntime::Buffer &Buf) {
 
 } // namespace
 
+llvm::Triple::ArchType CGHLSLRuntime::getArch() {
+  return CGM.getTarget().getTriple().getArch();
+}
+
 void CGHLSLRuntime::addConstant(VarDecl *D, Buffer &CB) {
   if (D->getStorageClass() == SC_Static) {
     // For static inside cbuffer, take as global static.
@@ -343,18 +345,8 @@ llvm::Value *CGHLSLRuntime::emitInputSemantic(IRBuilder<> &B,
     return B.CreateCall(FunctionCallee(DxGroupIndex));
   }
   if (D.hasAttr<HLSLSV_DispatchThreadIDAttr>()) {
-    llvm::Function *ThreadIDIntrinsic;
-    switch (CGM.getTarget().getTriple().getArch()) {
-    case llvm::Triple::dxil:
-      ThreadIDIntrinsic = CGM.getIntrinsic(Intrinsic::dx_thread_id);
-      break;
-    case llvm::Triple::spirv:
-      ThreadIDIntrinsic = CGM.getIntrinsic(Intrinsic::spv_thread_id);
-      break;
-    default:
-      llvm_unreachable("Input semantic not supported by target");
-      break;
-    }
+    llvm::Function *ThreadIDIntrinsic =
+        CGM.getIntrinsic(getThreadIdIntrinsic());
     return buildVectorInput(B, ThreadIDIntrinsic, Ty);
   }
   assert(false && "Unhandled parameter attribute");

clang/lib/CodeGen/CGHLSLRuntime.h

@@ -16,7 +16,11 @@
 #define LLVM_CLANG_LIB_CODEGEN_CGHLSLRUNTIME_H
 
 #include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/Intrinsics.h"
+#include "llvm/IR/IntrinsicsDirectX.h"
+#include "llvm/IR/IntrinsicsSPIRV.h"
 
+#include "clang/Basic/Builtins.h"
 #include "clang/Basic/HLSLRuntime.h"
 
 #include "llvm/ADT/SmallVector.h"
@@ -26,6 +30,22 @@
 #include <optional>
 #include <vector>
 
+// A function generator macro for picking the right intrinsic
+// for the target backend
+#define GENERATE_HLSL_INTRINSIC_FUNCTION(FunctionName, IntrinsicPostfix)       \
+  llvm::Intrinsic::ID get##FunctionName##Intrinsic() {                         \
+    llvm::Triple::ArchType Arch = getArch();                                   \
+    switch (Arch) {                                                            \
+    case llvm::Triple::dxil:                                                   \
+      return llvm::Intrinsic::dx_##IntrinsicPostfix;                           \
+    case llvm::Triple::spirv:                                                  \
+      return llvm::Intrinsic::spv_##IntrinsicPostfix;                          \
+    default:                                                                   \
+      llvm_unreachable("Intrinsic " #IntrinsicPostfix                          \
+                       " not supported by target architecture");               \
+    }                                                                          \
+  }
+
 namespace llvm {
 class GlobalVariable;
 class Function;
@@ -48,6 +68,17 @@ class CodeGenModule;
 
 class CGHLSLRuntime {
 public:
+  //===----------------------------------------------------------------------===//
+  // Start of reserved area for HLSL intrinsic getters.
+  //===----------------------------------------------------------------------===//
+
+  GENERATE_HLSL_INTRINSIC_FUNCTION(All, all)
+  GENERATE_HLSL_INTRINSIC_FUNCTION(ThreadId, thread_id)
+
+  //===----------------------------------------------------------------------===//
+  // End of reserved area for HLSL intrinsic getters.
+  //===----------------------------------------------------------------------===//
+
   struct BufferResBinding {
     // The ID like 2 in register(b2, space1).
     std::optional<unsigned> Reg;
@@ -96,6 +127,7 @@ class CGHLSLRuntime {
                                    BufferResBinding &Binding);
   void addConstant(VarDecl *D, Buffer &CB);
   void addBufferDecls(const DeclContext *DC, Buffer &CB);
+  llvm::Triple::ArchType getArch();
   llvm::SmallVector<Buffer> Buffers;
 };
 

clang/lib/Headers/hlsl/hlsl_intrinsics.h

@@ -100,6 +100,118 @@ double3 abs(double3);
 _HLSL_BUILTIN_ALIAS(__builtin_elementwise_abs)
 double4 abs(double4);
 
+//===----------------------------------------------------------------------===//
+// all builtins
+//===----------------------------------------------------------------------===//
+
+/// \fn bool all(T x)
+/// \brief Returns True if all components of the \a x parameter are non-zero;
+/// otherwise, false. \param x The input value.
+
+#ifdef __HLSL_ENABLE_16_BIT
+_HLSL_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int16_t);
+_HLSL_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int16_t2);
+_HLSL_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int16_t3);
+_HLSL_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int16_t4);
+_HLSL_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint16_t);
+_HLSL_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint16_t2);
+_HLSL_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint16_t3);
+_HLSL_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint16_t4);
+#endif
+
+_HLSL_16BIT_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(half);
+_HLSL_16BIT_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(half2);
+_HLSL_16BIT_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(half3);
+_HLSL_16BIT_AVAILABILITY(shadermodel, 6.2)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(half4);
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(bool);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(bool2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(bool3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(bool4);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int4);
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint4);
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(float);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(float2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(float3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(float4);
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int64_t);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int64_t2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int64_t3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(int64_t4);
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint64_t);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint64_t2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint64_t3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(uint64_t4);
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(double);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(double2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(double3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_elementwise_all)
+bool all(double4);
+
 //===----------------------------------------------------------------------===//
 // any builtins
 //===----------------------------------------------------------------------===//

clang/lib/Sema/SemaChecking.cpp

@@ -5563,6 +5563,7 @@ void SetElementTypeAsReturnType(Sema *S, CallExpr *TheCall,
 // returning an ExprError
 bool Sema::CheckHLSLBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
   switch (BuiltinID) {
+  case Builtin::BI__builtin_hlsl_elementwise_all:
   case Builtin::BI__builtin_hlsl_elementwise_any: {
     if (checkArgCount(*this, TheCall, 1))
       return true;