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/Linker/Linker.h>
  40 #include <llvm/Transforms/IPO.h>
  41 #include <llvm/Target/TargetMachine.h>
  42 #if HAVE_LLVM >= 0x0400
  43 #include <llvm/Support/Error.h>
  44 #else
  45 #include <llvm/Support/ErrorOr.h>
  46 #endif
  47
  48 #if HAVE_LLVM >= 0x0307
  49 #include <llvm/IR/LegacyPassManager.h>
  50 #include <llvm/Analysis/TargetLibraryInfo.h>
  51 #else
  52 #include <llvm/PassManager.h>
  53 #include <llvm/Target/TargetLibraryInfo.h>
  54 #include <llvm/Target/TargetSubtargetInfo.h>
  55 #include <llvm/Support/FormattedStream.h>
  56 #endif
  57
  58 #include <clang/Basic/TargetInfo.h>
  59 #include <clang/Frontend/CodeGenOptions.h>
  60 #include <clang/Frontend/CompilerInstance.h>
  61
  62 namespace clover {
  63    namespace llvm {
  64       namespace compat {
  65 #if HAVE_LLVM >= 0x0307
  66          typedef ::llvm::TargetLibraryInfoImpl target_library_info;
  67 #else
  68          typedef ::llvm::TargetLibraryInfo target_library_info;
  69 #endif
  70
  71 #if HAVE_LLVM >= 0x0500
  72          const auto lang_as_offset = 0;
  73          const clang::InputKind ik_opencl = clang::InputKind::OpenCL;
  74 #else
  75          const auto lang_as_offset = clang::LangAS::Offset;
  76          const clang::InputKind ik_opencl = clang::IK_OpenCL;
  77 #endif
  78
  79          inline void
  80          set_lang_defaults(clang::CompilerInvocation &inv,
  81                            clang::LangOptions &lopts, clang::InputKind ik,
  82                            const ::llvm::Triple &t,
  83                            clang::PreprocessorOptions &ppopts,
  84                            clang::LangStandard::Kind std) {
  85 #if HAVE_LLVM >= 0x0309
  86             inv.setLangDefaults(lopts, ik, t, ppopts, std);
  87 #else
  88             inv.setLangDefaults(lopts, ik, std);
  89 #endif
  90          }
  91
  92          inline void
  93          add_link_bitcode_file(clang::CodeGenOptions &opts,
  94                                const std::string &path) {
  95 #if HAVE_LLVM >= 0x0500
  96             clang::CodeGenOptions::BitcodeFileToLink F;
  97
  98             F.Filename = path;
  99             F.PropagateAttrs = true;
 100             F.LinkFlags = ::llvm::Linker::Flags::None;
 101             opts.LinkBitcodeFiles.emplace_back(F);
 102 #elif HAVE_LLVM >= 0x0308
 103             opts.LinkBitcodeFiles.emplace_back(::llvm::Linker::Flags::None, path);
 104 #else
 105             opts.LinkBitcodeFile = path;
 106 #endif
 107          }
 108
 109 #if HAVE_LLVM >= 0x0307
 110          typedef ::llvm::legacy::PassManager pass_manager;
 111 #else
 112          typedef ::llvm::PassManager pass_manager;
 113 #endif
 114
 115          inline void
 116          add_data_layout_pass(pass_manager &pm) {
 117 #if HAVE_LLVM < 0x0307
 118             pm.add(new ::llvm::DataLayoutPass());
 119 #endif
 120          }
 121
 122          inline void
 123          add_internalize_pass(pass_manager &pm,
 124                               const std::vector<std::string> &names) {
 125 #if HAVE_LLVM >= 0x0309
 126             pm.add(::llvm::createInternalizePass(
 127                       [=](const ::llvm::GlobalValue &gv) {
 128                          return std::find(names.begin(), names.end(),
 129                                           gv.getName()) != names.end();
 130                       }));
 131 #else
 132             pm.add(::llvm::createInternalizePass(std::vector<const char *>(
 133                       map(std::mem_fn(&std::string::data), names))));
 134 #endif
 135          }
 136
 137          inline std::unique_ptr< ::llvm::Linker>
 138          create_linker(::llvm::Module &mod) {
 139 #if HAVE_LLVM >= 0x0308
 140             return std::unique_ptr< ::llvm::Linker>(new ::llvm::Linker(mod));
 141 #else
 142             return std::unique_ptr< ::llvm::Linker>(new ::llvm::Linker(&mod));
 143 #endif
 144          }
 145
 146          inline bool
 147          link_in_module(::llvm::Linker &linker,
 148                         std::unique_ptr< ::llvm::Module> mod) {
 149 #if HAVE_LLVM >= 0x0308
 150             return linker.linkInModule(std::move(mod));
 151 #else
 152             return linker.linkInModule(mod.get());
 153 #endif
 154          }
 155
 156 #if HAVE_LLVM >= 0x0307
 157          typedef ::llvm::raw_svector_ostream &raw_ostream_to_emit_file;
 158 #else
 159          typedef ::llvm::formatted_raw_ostream raw_ostream_to_emit_file;
 160 #endif
 161
 162 #if HAVE_LLVM >= 0x0307
 163          typedef ::llvm::DataLayout data_layout;
 164 #else
 165          typedef const ::llvm::DataLayout *data_layout;
 166 #endif
 167
 168          inline data_layout
 169          get_data_layout(::llvm::TargetMachine &tm) {
 170 #if HAVE_LLVM >= 0x0307
 171             return tm.createDataLayout();
 172 #else
 173             return tm.getSubtargetImpl()->getDataLayout();
 174 #endif
 175          }
 176
 177 #if HAVE_LLVM >= 0x0600
 178          const auto default_code_model = ::llvm::None;
 179 #else
 180          const auto default_code_model = ::llvm::CodeModel::Default;
 181 #endif
 182
 183 #if HAVE_LLVM >= 0x0309
 184          const auto default_reloc_model = ::llvm::None;
 185 #else
 186          const auto default_reloc_model = ::llvm::Reloc::Default;
 187 #endif
 188
 189          template<typename M, typename F> void
 190          handle_module_error(M &mod, const F &f) {
 191 #if HAVE_LLVM >= 0x0400
 192             if (::llvm::Error err = mod.takeError())
 193                ::llvm::handleAllErrors(std::move(err), [&](::llvm::ErrorInfoBase &eib) {
 194                      f(eib.message());
 195                   });
 196 #else
 197             if (!mod)
 198                f(mod.getError().message());
 199 #endif
 200          }
 201
 202         template<typename T> void
 203         set_diagnostic_handler(::llvm::LLVMContext &ctx,
 204                                T *diagnostic_handler, void *data) {
 205 #if HAVE_LLVM >= 0x0600
 206            ctx.setDiagnosticHandlerCallBack(diagnostic_handler, data);
 207 #else
 208            ctx.setDiagnosticHandler(diagnostic_handler, data);
 209 #endif
 210         }
 211       }
 212    }
 213 }
 214
 215 #endif