[HLSL] Add address space hlsl_constant(2) for constant buffer declarations

Author: hekota

clang/include/clang/Basic/AddressSpaces.h

@@ -58,6 +58,7 @@ enum class LangAS : unsigned {
 
   // HLSL specific address spaces.
   hlsl_groupshared,
+  hlsl_constant,
 
   // Wasm specific address spaces.
   wasm_funcref,

clang/lib/AST/TypePrinter.cpp

@@ -2556,6 +2556,8 @@ std::string Qualifiers::getAddrSpaceAsString(LangAS AS) {
     return "__funcref";
   case LangAS::hlsl_groupshared:
     return "groupshared";
+  case LangAS::hlsl_constant:
+    return "hlsl_constant";
   default:
     return std::to_string(toTargetAddressSpace(AS));
   }

clang/lib/Basic/Targets/AArch64.h

@@ -44,6 +44,7 @@ static const unsigned ARM64AddrSpaceMap[] = {
     static_cast<unsigned>(AArch64AddrSpace::ptr32_uptr),
     static_cast<unsigned>(AArch64AddrSpace::ptr64),
     0, // hlsl_groupshared
+    0, // hlsl_constant
     // Wasm address space values for this target are dummy values,
     // as it is only enabled for Wasm targets.
     20, // wasm_funcref

clang/lib/Basic/Targets/AMDGPU.cpp

@@ -83,6 +83,7 @@ const LangASMap AMDGPUTargetInfo::AMDGPUDefIsPrivMap = {
     llvm::AMDGPUAS::FLAT_ADDRESS, // ptr32_uptr
     llvm::AMDGPUAS::FLAT_ADDRESS, // ptr64
     llvm::AMDGPUAS::FLAT_ADDRESS, // hlsl_groupshared
+    llvm::AMDGPUAS::FLAT_ADDRESS, // hlsl_constant
 
 };
 } // namespace targets

clang/lib/Basic/Targets/DirectX.h

@@ -42,6 +42,7 @@ static const unsigned DirectXAddrSpaceMap[] = {
     0, // ptr32_uptr
     0, // ptr64
     3, // hlsl_groupshared
+    2, // hlsl_constant
     // Wasm address space values for this target are dummy values,
     // as it is only enabled for Wasm targets.
     20, // wasm_funcref

clang/lib/Basic/Targets/NVPTX.h

@@ -46,6 +46,7 @@ static const unsigned NVPTXAddrSpaceMap[] = {
     0, // ptr32_uptr
     0, // ptr64
     0, // hlsl_groupshared
+    0, // hlsl_constant
     // Wasm address space values for this target are dummy values,
     // as it is only enabled for Wasm targets.
     20, // wasm_funcref

clang/lib/Basic/Targets/SPIR.h

@@ -47,6 +47,7 @@ static const unsigned SPIRDefIsPrivMap[] = {
     0, // ptr32_uptr
     0, // ptr64
     0, // hlsl_groupshared
+    2, // hlsl_constant
     // Wasm address space values for this target are dummy values,
     // as it is only enabled for Wasm targets.
     20, // wasm_funcref
@@ -80,6 +81,7 @@ static const unsigned SPIRDefIsGenMap[] = {
     0, // ptr32_uptr
     0, // ptr64
     0, // hlsl_groupshared
+    0, // hlsl_constant
     // Wasm address space values for this target are dummy values,
     // as it is only enabled for Wasm targets.
     20, // wasm_funcref

clang/lib/Basic/Targets/SystemZ.h

@@ -42,6 +42,7 @@ static const unsigned ZOSAddressMap[] = {
     1, // ptr32_uptr
     0, // ptr64
     0, // hlsl_groupshared
+    0, // hlsl_constant
     0  // wasm_funcref
 };
 

clang/lib/Basic/Targets/TCE.h

@@ -51,6 +51,7 @@ static const unsigned TCEOpenCLAddrSpaceMap[] = {
     0, // ptr32_uptr
     0, // ptr64
     0, // hlsl_groupshared
+    0, // hlsl_constant
     // Wasm address space values for this target are dummy values,
     // as it is only enabled for Wasm targets.
     20, // wasm_funcref

clang/lib/Basic/Targets/WebAssembly.h

@@ -42,6 +42,7 @@ static const unsigned WebAssemblyAddrSpaceMap[] = {
     0,  // ptr32_uptr
     0,  // ptr64
     0,  // hlsl_groupshared
+    0,  // hlsl_constant
     20, // wasm_funcref
 };