[clang] [llvm] [NFC][RootSignature] Move RootSignature util functions (PR #142491)

[Finn Plummer via llvm-commits]

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@@ -0,0 +1,65 @@
+//===- HLSLRootSignatureUtils.h - HLSL Root Signature helpers -------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file This file contains helper obejcts for working with HLSL Root
+/// Signatures.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_FRONTEND_HLSL_HLSLROOTSIGNATUREUTILS_H
+#define LLVM_FRONTEND_HLSL_HLSLROOTSIGNATUREUTILS_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/Frontend/HLSL/HLSLRootSignature.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/raw_ostream.h"
+
+namespace llvm {
+class LLVMContext;
+class MDNode;
+class Metadata;
+
+namespace hlsl {
+namespace rootsig {
+
+LLVM_ABI raw_ostream &operator<<(raw_ostream &OS,
+                                 const DescriptorTableClause &Clause);
+
+LLVM_ABI raw_ostream &operator<<(raw_ostream &OS, const DescriptorTable &Table);
+
+LLVM_ABI void dumpRootElements(raw_ostream &OS, ArrayRef<RootElement> Elements);
+
+class MetadataBuilder {
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inbelic wrote:

Resolved offline.

I agree with this but I think it doesn't outweigh the negatives of having to move all commonly used functions to be public. And we don't get any linking benefits.

https://github.com/llvm/llvm-project/pull/142491