vendor/llvm-project/llvmorg-16-init-18548-gb0daacf58f41

1 files changed, 56 insertions, 0 deletions

diff --git a/llvm/lib/Frontend/HLSL/HLSLResource.cpp b/llvm/lib/Frontend/HLSL/HLSLResource.cpp
new file mode 100644
index 000000000000..59f730d8a495
--- /dev/null
+++ b/llvm/lib/Frontend/HLSL/HLSLResource.cpp
@@ -0,0 +1,56 @@
+//===- HLSLResource.cpp - HLSL Resource helper objects --------------------===//
+//
+// 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 objects for working with HLSL Resources.
+///
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Frontend/HLSL/HLSLResource.h"
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/Metadata.h"
+#include "llvm/IR/Module.h"
+
+using namespace llvm;
+using namespace llvm::hlsl;
+
+GlobalVariable *FrontendResource::getGlobalVariable() {
+  return cast<GlobalVariable>(
+      cast<ConstantAsMetadata>(Entry->getOperand(0))->getValue());
+}
+
+StringRef FrontendResource::getSourceType() {
+  return cast<MDString>(Entry->getOperand(1))->getString();
+}
+
+uint32_t FrontendResource::FrontendResource::getResourceKind() {
+  return cast<ConstantInt>(
+             cast<ConstantAsMetadata>(Entry->getOperand(2))->getValue())
+      ->getLimitedValue();
+}
+uint32_t FrontendResource::getResourceIndex() {
+  return cast<ConstantInt>(
+             cast<ConstantAsMetadata>(Entry->getOperand(3))->getValue())
+      ->getLimitedValue();
+}
+uint32_t FrontendResource::getSpace() {
+  return cast<ConstantInt>(
+             cast<ConstantAsMetadata>(Entry->getOperand(4))->getValue())
+      ->getLimitedValue();
+}
+
+FrontendResource::FrontendResource(GlobalVariable *GV, StringRef TypeStr,
+                                   ResourceKind RK, uint32_t ResIndex,
+                                   uint32_t Space) {
+  auto &Ctx = GV->getContext();
+  IRBuilder<> B(Ctx);
+  Entry = MDNode::get(
+      Ctx, {ValueAsMetadata::get(GV), MDString::get(Ctx, TypeStr),
+            ConstantAsMetadata::get(B.getInt32(static_cast<int>(RK))),
+            ConstantAsMetadata::get(B.getInt32(ResIndex)),
+            ConstantAsMetadata::get(B.getInt32(Space))});
+}