[clang] [HLSL] Implement TableGen for builtin HLSL intrinsics (PR #187610)

[Rahul Joshi via cfe-commits]

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@@ -0,0 +1,586 @@
+//===--- HLSLEmitter.cpp - HLSL intrinsic header generator ----------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This tablegen backend generates hlsl_alias_intrinsics_gen.inc (alias
+// overloads) and hlsl_inline_intrinsics_gen.inc (inline/detail overloads) for
+// HLSL intrinsic functions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/TableGen/Record.h"
+
+using namespace llvm;
+
+namespace {
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jurahul wrote:

nit: see https://llvm.org/docs/CodingStandards.html#restrict-visibility

use anonymous namespace for file local struct/classes only

https://github.com/llvm/llvm-project/pull/187610