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4f044c38e2
Signed-off-by: Karol Herbst <kherbst@redhat.com> Reviewed-by: Pierre Moreau <dev@pmoreau.org>
91 lines
3.2 KiB
C++
91 lines
3.2 KiB
C++
//
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// Copyright 2012-2016 Francisco Jerez
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// Copyright 2012-2016 Advanced Micro Devices, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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//
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///
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/// \file
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/// Trivial codegen back-end that simply passes through the existing LLVM IR
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/// and either formats it so it can be consumed by pipe drivers (if
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/// build_module_bitcode() is used) or serializes so it can be deserialized at
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/// a later point and passed to the actual codegen back-end (if
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/// build_module_library() / parse_module_library() is used), potentially
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/// after linking against other bitcode object files.
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///
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#include "llvm/codegen.hpp"
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#include "llvm/compat.hpp"
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#include "llvm/metadata.hpp"
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#include "core/error.hpp"
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#include "util/algorithm.hpp"
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#include <map>
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#include <llvm/Config/llvm-config.h>
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#if LLVM_VERSION_MAJOR < 4
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#include <llvm/Bitcode/ReaderWriter.h>
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#else
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#include <llvm/Bitcode/BitcodeReader.h>
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#include <llvm/Bitcode/BitcodeWriter.h>
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#endif
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#include <llvm/Support/raw_ostream.h>
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using namespace clover;
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using namespace clover::llvm;
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namespace {
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std::vector<char>
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emit_code(const ::llvm::Module &mod) {
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::llvm::SmallVector<char, 1024> data;
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::llvm::raw_svector_ostream os { data };
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compat::write_bitcode_to_file(mod, os);
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return { os.str().begin(), os.str().end() };
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}
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}
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std::string
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clover::llvm::print_module_bitcode(const ::llvm::Module &mod) {
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std::string s;
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::llvm::raw_string_ostream os { s };
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mod.print(os, NULL);
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return os.str();
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}
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module
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clover::llvm::build_module_library(const ::llvm::Module &mod,
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enum module::section::type section_type) {
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module m;
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const auto code = emit_code(mod);
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m.secs.emplace_back(0, section_type, code.size(), code);
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return m;
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}
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std::unique_ptr< ::llvm::Module>
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clover::llvm::parse_module_library(const module &m, ::llvm::LLVMContext &ctx,
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std::string &r_log) {
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auto mod = ::llvm::parseBitcodeFile(::llvm::MemoryBufferRef(
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as_string(m.secs[0].data), " "), ctx);
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compat::handle_module_error(mod, [&](const std::string &s) {
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fail(r_log, error(CL_INVALID_PROGRAM), s);
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});
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return std::unique_ptr< ::llvm::Module>(std::move(*mod));
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}
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