2 // Copyright 2012-2016 Francisco Jerez
3 // Copyright 2012-2016 Advanced Micro Devices, Inc.
5 // Permission is hereby granted, free of charge, to any person obtaining a
6 // copy of this software and associated documentation files (the "Software"),
7 // to deal in the Software without restriction, including without limitation
8 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 // and/or sell copies of the Software, and to permit persons to whom the
10 // Software is furnished to do so, subject to the following conditions:
12 // The above copyright notice and this permission notice shall be included in
13 // all copies or substantial portions of the Software.
15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 // OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 // OTHER DEALINGS IN THE SOFTWARE.
26 /// Trivial codegen back-end that simply passes through the existing LLVM IR
27 /// and either formats it so it can be consumed by pipe drivers (if
28 /// build_module_bitcode() is used) or serializes so it can be deserialized at
29 /// a later point and passed to the actual codegen back-end (if
30 /// build_module_library() / parse_module_library() is used), potentially
31 /// after linking against other bitcode object files.
34 #include "llvm/codegen.hpp"
35 #include "llvm/compat.hpp"
36 #include "llvm/metadata.hpp"
37 #include "core/error.hpp"
38 #include "util/algorithm.hpp"
41 #include <llvm/Config/llvm-config.h>
42 #if LLVM_VERSION_MAJOR < 4
43 #include <llvm/Bitcode/ReaderWriter.h>
45 #include <llvm/Bitcode/BitcodeReader.h>
46 #include <llvm/Bitcode/BitcodeWriter.h>
48 #include <llvm/Support/raw_ostream.h>
50 using namespace clover
;
51 using namespace clover::llvm
;
55 emit_code(const ::llvm::Module
&mod
) {
56 ::llvm::SmallVector
<char, 1024> data
;
57 ::llvm::raw_svector_ostream os
{ data
};
58 compat::write_bitcode_to_file(mod
, os
);
59 return { os
.str().begin(), os
.str().end() };
64 clover::llvm::print_module_bitcode(const ::llvm::Module
&mod
) {
66 ::llvm::raw_string_ostream os
{ s
};
72 clover::llvm::build_module_library(const ::llvm::Module
&mod
,
73 enum module::section::type section_type
) {
75 const auto code
= emit_code(mod
);
76 m
.secs
.emplace_back(0, section_type
, code
.size(), code
);
80 std::unique_ptr
< ::llvm::Module
>
81 clover::llvm::parse_module_library(const module
&m
, ::llvm::LLVMContext
&ctx
,
83 auto mod
= ::llvm::parseBitcodeFile(::llvm::MemoryBufferRef(
84 as_string(m
.secs
[0].data
), " "), ctx
);
86 compat::handle_module_error(mod
, [&](const std::string
&s
) {
87 fail(r_log
, error(CL_INVALID_PROGRAM
), s
);
90 return std::unique_ptr
< ::llvm::Module
>(std::move(*mod
));