src/gallium/state_trackers/clover/llvm/compat.hpp

   1 //
   2 // Copyright 2016 Francisco Jerez
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining a
   5 // copy of this software and associated documentation files (the "Software"),
   6 // to deal in the Software without restriction, including without limitation
   7 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 // and/or sell copies of the Software, and to permit persons to whom the
   9 // Software is furnished to do so, subject to the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be included in
  12 // all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 // OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 // OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22
  23 ///
  24 /// \file
  25 /// Some thin wrappers around the Clang/LLVM API used to preserve
  26 /// compatibility with older API versions while keeping the ifdef clutter low
  27 /// in the rest of the clover::llvm subtree.  In case of an API break please
  28 /// consider whether it's possible to preserve backwards compatibility by
  29 /// introducing a new one-liner inline function or typedef here under the
  30 /// compat namespace in order to keep the running code free from preprocessor
  31 /// conditionals.
  32 ///
  33
  34 #ifndef CLOVER_LLVM_COMPAT_HPP
  35 #define CLOVER_LLVM_COMPAT_HPP
  36
  37 #include "util/algorithm.hpp"
  38
  39 #include <llvm/IR/LLVMContext.h>
  40 #include <llvm/Linker/Linker.h>
  41 #include <llvm/Transforms/IPO.h>
  42 #include <llvm/Target/TargetMachine.h>
  43 #if HAVE_LLVM >= 0x0400
  44 #include <llvm/Support/Error.h>
  45 #else
  46 #include <llvm/Support/ErrorOr.h>
  47 #endif
  48
  49 #if HAVE_LLVM >= 0x0307
  50 #include <llvm/IR/LegacyPassManager.h>
  51 #include <llvm/Analysis/TargetLibraryInfo.h>
  52 #else
  53 #include <llvm/PassManager.h>
  54 #include <llvm/Target/TargetLibraryInfo.h>
  55 #include <llvm/Target/TargetSubtargetInfo.h>
  56 #include <llvm/Support/FormattedStream.h>
  57 #endif
  58
  59 #include <clang/Basic/TargetInfo.h>
  60 #include <clang/Frontend/CodeGenOptions.h>
  61 #include <clang/Frontend/CompilerInstance.h>
  62
  63 namespace clover {
  64    namespace llvm {
  65       namespace compat {
  66 #if HAVE_LLVM >= 0x0307
  67          typedef ::llvm::TargetLibraryInfoImpl target_library_info;
  68 #else
  69          typedef ::llvm::TargetLibraryInfo target_library_info;
  70 #endif
  71
  72          template<typename T, typename AS>
  73          unsigned target_address_space(const T &target, const AS lang_as) {
  74             const auto &map = target.getAddressSpaceMap();
  75 #if HAVE_LLVM >= 0x0500
  76             return map[static_cast<unsigned>(lang_as)];
  77 #else
  78             return map[lang_as - clang::LangAS::Offset];
  79 #endif
  80          }
  81
  82 #if HAVE_LLVM >= 0x0500
  83          const clang::InputKind ik_opencl = clang::InputKind::OpenCL;
  84 #else
  85          const clang::InputKind ik_opencl = clang::IK_OpenCL;
  86 #endif
  87
  88          inline void
  89          set_lang_defaults(clang::CompilerInvocation &inv,
  90                            clang::LangOptions &lopts, clang::InputKind ik,
  91                            const ::llvm::Triple &t,
  92                            clang::PreprocessorOptions &ppopts,
  93                            clang::LangStandard::Kind std) {
  94 #if HAVE_LLVM >= 0x0309
  95             inv.setLangDefaults(lopts, ik, t, ppopts, std);
  96 #else
  97             inv.setLangDefaults(lopts, ik, std);
  98 #endif
  99          }
 100
 101          inline void
 102          add_link_bitcode_file(clang::CodeGenOptions &opts,
 103                                const std::string &path) {
 104 #if HAVE_LLVM >= 0x0500
 105             clang::CodeGenOptions::BitcodeFileToLink F;
 106
 107             F.Filename = path;
 108             F.PropagateAttrs = true;
 109             F.LinkFlags = ::llvm::Linker::Flags::None;
 110             opts.LinkBitcodeFiles.emplace_back(F);
 111 #elif HAVE_LLVM >= 0x0308
 112             opts.LinkBitcodeFiles.emplace_back(::llvm::Linker::Flags::None, path);
 113 #else
 114             opts.LinkBitcodeFile = path;
 115 #endif
 116          }
 117
 118 #if HAVE_LLVM >= 0x0307
 119          typedef ::llvm::legacy::PassManager pass_manager;
 120 #else
 121          typedef ::llvm::PassManager pass_manager;
 122 #endif
 123
 124          inline void
 125          add_data_layout_pass(pass_manager &pm) {
 126 #if HAVE_LLVM < 0x0307
 127             pm.add(new ::llvm::DataLayoutPass());
 128 #endif
 129          }
 130
 131          inline void
 132          add_internalize_pass(pass_manager &pm,
 133                               const std::vector<std::string> &names) {
 134 #if HAVE_LLVM >= 0x0309
 135             pm.add(::llvm::createInternalizePass(
 136                       [=](const ::llvm::GlobalValue &gv) {
 137                          return std::find(names.begin(), names.end(),
 138                                           gv.getName()) != names.end();
 139                       }));
 140 #else
 141             pm.add(::llvm::createInternalizePass(std::vector<const char *>(
 142                       map(std::mem_fn(&std::string::data), names))));
 143 #endif
 144          }
 145
 146          inline std::unique_ptr< ::llvm::Linker>
 147          create_linker(::llvm::Module &mod) {
 148 #if HAVE_LLVM >= 0x0308
 149             return std::unique_ptr< ::llvm::Linker>(new ::llvm::Linker(mod));
 150 #else
 151             return std::unique_ptr< ::llvm::Linker>(new ::llvm::Linker(&mod));
 152 #endif
 153          }
 154
 155          inline bool
 156          link_in_module(::llvm::Linker &linker,
 157                         std::unique_ptr< ::llvm::Module> mod) {
 158 #if HAVE_LLVM >= 0x0308
 159             return linker.linkInModule(std::move(mod));
 160 #else
 161             return linker.linkInModule(mod.get());
 162 #endif
 163          }
 164
 165 #if HAVE_LLVM >= 0x0307
 166          typedef ::llvm::raw_svector_ostream &raw_ostream_to_emit_file;
 167 #else
 168          typedef ::llvm::formatted_raw_ostream raw_ostream_to_emit_file;
 169 #endif
 170
 171 #if HAVE_LLVM >= 0x0307
 172          typedef ::llvm::DataLayout data_layout;
 173 #else
 174          typedef const ::llvm::DataLayout *data_layout;
 175 #endif
 176
 177          inline data_layout
 178          get_data_layout(::llvm::TargetMachine &tm) {
 179 #if HAVE_LLVM >= 0x0307
 180             return tm.createDataLayout();
 181 #else
 182             return tm.getSubtargetImpl()->getDataLayout();
 183 #endif
 184          }
 185
 186 #if HAVE_LLVM >= 0x0600
 187          const auto default_code_model = ::llvm::None;
 188 #else
 189          const auto default_code_model = ::llvm::CodeModel::Default;
 190 #endif
 191
 192 #if HAVE_LLVM >= 0x0309
 193          const auto default_reloc_model = ::llvm::None;
 194 #else
 195          const auto default_reloc_model = ::llvm::Reloc::Default;
 196 #endif
 197
 198          template<typename M, typename F> void
 199          handle_module_error(M &mod, const F &f) {
 200 #if HAVE_LLVM >= 0x0400
 201             if (::llvm::Error err = mod.takeError())
 202                ::llvm::handleAllErrors(std::move(err), [&](::llvm::ErrorInfoBase &eib) {
 203                      f(eib.message());
 204                   });
 205 #else
 206             if (!mod)
 207                f(mod.getError().message());
 208 #endif
 209          }
 210
 211         template<typename T> void
 212         set_diagnostic_handler(::llvm::LLVMContext &ctx,
 213                                T *diagnostic_handler, void *data) {
 214 #if HAVE_LLVM >= 0x0600
 215            ctx.setDiagnosticHandlerCallBack(diagnostic_handler, data);
 216 #else
 217            ctx.setDiagnosticHandler(diagnostic_handler, data);
 218 #endif
 219         }
 220       }
 221    }
 222 }
 223
 224 #endif