1 files changed, 179 insertions, 0 deletions

diff --git a/contrib/llvm-project/llvm/lib/Target/AMDGPU/Utils/AMDKernelCodeTUtils.cpp b/contrib/llvm-project/llvm/lib/Target/AMDGPU/Utils/AMDKernelCodeTUtils.cpp
new file mode 100644
index 000000000000..443e2cc45ac0
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/Target/AMDGPU/Utils/AMDKernelCodeTUtils.cpp
@@ -0,0 +1,179 @@
+//===- AMDKernelCodeTUtils.cpp --------------------------------------------===//
+//
+// 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 - utility functions to parse/print amd_kernel_code_t structure
+//
+//===----------------------------------------------------------------------===//
+
+#include "AMDKernelCodeTUtils.h"
+#include "SIDefines.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/MC/MCParser/MCAsmLexer.h"
+#include "llvm/MC/MCParser/MCAsmParser.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cassert>
+#include <cstdint>
+#include <utility>
+
+using namespace llvm;
+
+static ArrayRef<StringRef> get_amd_kernel_code_t_FldNames() {
+  static StringRef const Table[] = {
+    "", // not found placeholder
+#define RECORD(name, altName, print, parse) #name
+#include "AMDKernelCodeTInfo.h"
+#undef RECORD
+  };
+  return makeArrayRef(Table);
+}
+
+static ArrayRef<StringRef> get_amd_kernel_code_t_FldAltNames() {
+  static StringRef const Table[] = {
+    "", // not found placeholder
+#define RECORD(name, altName, print, parse) #altName
+#include "AMDKernelCodeTInfo.h"
+#undef RECORD
+  };
+  return makeArrayRef(Table);
+}
+
+static StringMap<int> createIndexMap(const ArrayRef<StringRef> &names,
+                                     const ArrayRef<StringRef> &altNames) {
+  StringMap<int> map;
+  assert(names.size() == altNames.size());
+  for (unsigned i = 0; i < names.size(); ++i) {
+    map.insert(std::make_pair(names[i], i));
+    map.insert(std::make_pair(altNames[i], i));
+  }
+  return map;
+}
+
+static int get_amd_kernel_code_t_FieldIndex(StringRef name) {
+  static const auto map = createIndexMap(get_amd_kernel_code_t_FldNames(),
+                                         get_amd_kernel_code_t_FldAltNames());
+  return map.lookup(name) - 1; // returns -1 if not found
+}
+
+static StringRef get_amd_kernel_code_t_FieldName(int index) {
+  return get_amd_kernel_code_t_FldNames()[index + 1];
+}
+
+// Field printing
+
+static raw_ostream &printName(raw_ostream &OS, StringRef Name) {
+  return OS << Name << " = ";
+}
+
+template <typename T, T amd_kernel_code_t::*ptr>
+static void printField(StringRef Name, const amd_kernel_code_t &C,
+                       raw_ostream &OS) {
+  printName(OS, Name) << (int)(C.*ptr);
+}
+
+template <typename T, T amd_kernel_code_t::*ptr, int shift, int width = 1>
+static void printBitField(StringRef Name, const amd_kernel_code_t &c,
+                          raw_ostream &OS) {
+  const auto Mask = (static_cast<T>(1) << width) - 1;
+  printName(OS, Name) << (int)((c.*ptr >> shift) & Mask);
+}
+
+using PrintFx = void(*)(StringRef, const amd_kernel_code_t &, raw_ostream &);
+
+static ArrayRef<PrintFx> getPrinterTable() {
+  static const PrintFx Table[] = {
+#define RECORD(name, altName, print, parse) print
+#include "AMDKernelCodeTInfo.h"
+#undef RECORD
+  };
+  return makeArrayRef(Table);
+}
+
+void llvm::printAmdKernelCodeField(const amd_kernel_code_t &C,
+                                   int FldIndex,
+                                   raw_ostream &OS) {
+  auto Printer = getPrinterTable()[FldIndex];
+  if (Printer)
+    Printer(get_amd_kernel_code_t_FieldName(FldIndex), C, OS);
+}
+
+void llvm::dumpAmdKernelCode(const amd_kernel_code_t *C,
+                             raw_ostream &OS,
+                             const char *tab) {
+  const int Size = getPrinterTable().size();
+  for (int i = 0; i < Size; ++i) {
+    OS << tab;
+    printAmdKernelCodeField(*C, i, OS);
+    OS << '\n';
+  }
+}
+
+// Field parsing
+
+static bool expectAbsExpression(MCAsmParser &MCParser, int64_t &Value, raw_ostream& Err) {
+
+  if (MCParser.getLexer().isNot(AsmToken::Equal)) {
+    Err << "expected '='";
+    return false;
+  }
+  MCParser.getLexer().Lex();
+
+  if (MCParser.parseAbsoluteExpression(Value)) {
+    Err << "integer absolute expression expected";
+    return false;
+  }
+  return true;
+}
+
+template <typename T, T amd_kernel_code_t::*ptr>
+static bool parseField(amd_kernel_code_t &C, MCAsmParser &MCParser,
+                       raw_ostream &Err) {
+  int64_t Value = 0;
+  if (!expectAbsExpression(MCParser, Value, Err))
+    return false;
+  C.*ptr = (T)Value;
+  return true;
+}
+
+template <typename T, T amd_kernel_code_t::*ptr, int shift, int width = 1>
+static bool parseBitField(amd_kernel_code_t &C, MCAsmParser &MCParser,
+                          raw_ostream &Err) {
+  int64_t Value = 0;
+  if (!expectAbsExpression(MCParser, Value, Err))
+    return false;
+  const uint64_t Mask = ((UINT64_C(1)  << width) - 1) << shift;
+  C.*ptr &= (T)~Mask;
+  C.*ptr |= (T)((Value << shift) & Mask);
+  return true;
+}
+
+using ParseFx = bool(*)(amd_kernel_code_t &, MCAsmParser &MCParser,
+                        raw_ostream &Err);
+
+static ArrayRef<ParseFx> getParserTable() {
+  static const ParseFx Table[] = {
+#define RECORD(name, altName, print, parse) parse
+#include "AMDKernelCodeTInfo.h"
+#undef RECORD
+  };
+  return makeArrayRef(Table);
+}
+
+bool llvm::parseAmdKernelCodeField(StringRef ID,
+                                   MCAsmParser &MCParser,
+                                   amd_kernel_code_t &C,
+                                   raw_ostream &Err) {
+  const int Idx = get_amd_kernel_code_t_FieldIndex(ID);
+  if (Idx < 0) {
+    Err << "unexpected amd_kernel_code_t field name " << ID;
+    return false;
+  }
+  auto Parser = getParserTable()[Idx];
+  return Parser ? Parser(C, MCParser, Err) : false;
+}