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llvm-mirror/lib/Bitcode/Reader/BitReader.cpp
Chandler Carruth 4c1f3c24db Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

llvm-svn: 171366
2013-01-02 11:36:10 +00:00

89 lines
3.4 KiB
C++

//===-- BitReader.cpp -----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm-c/BitReader.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/Support/MemoryBuffer.h"
#include <cstring>
#include <string>
using namespace llvm;
/* Builds a module from the bitcode in the specified memory buffer, returning a
reference to the module via the OutModule parameter. Returns 0 on success.
Optionally returns a human-readable error message via OutMessage. */
LLVMBool LLVMParseBitcode(LLVMMemoryBufferRef MemBuf,
LLVMModuleRef *OutModule, char **OutMessage) {
return LLVMParseBitcodeInContext(wrap(&getGlobalContext()), MemBuf, OutModule,
OutMessage);
}
LLVMBool LLVMParseBitcodeInContext(LLVMContextRef ContextRef,
LLVMMemoryBufferRef MemBuf,
LLVMModuleRef *OutModule,
char **OutMessage) {
std::string Message;
*OutModule = wrap(ParseBitcodeFile(unwrap(MemBuf), *unwrap(ContextRef),
&Message));
if (!*OutModule) {
if (OutMessage)
*OutMessage = strdup(Message.c_str());
return 1;
}
return 0;
}
/* Reads a module from the specified path, returning via the OutModule parameter
a module provider which performs lazy deserialization. Returns 0 on success.
Optionally returns a human-readable error message via OutMessage. */
LLVMBool LLVMGetBitcodeModuleInContext(LLVMContextRef ContextRef,
LLVMMemoryBufferRef MemBuf,
LLVMModuleRef *OutM,
char **OutMessage) {
std::string Message;
*OutM = wrap(getLazyBitcodeModule(unwrap(MemBuf), *unwrap(ContextRef),
&Message));
if (!*OutM) {
if (OutMessage)
*OutMessage = strdup(Message.c_str());
return 1;
}
return 0;
}
LLVMBool LLVMGetBitcodeModule(LLVMMemoryBufferRef MemBuf, LLVMModuleRef *OutM,
char **OutMessage) {
return LLVMGetBitcodeModuleInContext(LLVMGetGlobalContext(), MemBuf, OutM,
OutMessage);
}
/* Deprecated: Use LLVMGetBitcodeModuleInContext instead. */
LLVMBool LLVMGetBitcodeModuleProviderInContext(LLVMContextRef ContextRef,
LLVMMemoryBufferRef MemBuf,
LLVMModuleProviderRef *OutMP,
char **OutMessage) {
return LLVMGetBitcodeModuleInContext(ContextRef, MemBuf,
reinterpret_cast<LLVMModuleRef*>(OutMP),
OutMessage);
}
/* Deprecated: Use LLVMGetBitcodeModule instead. */
LLVMBool LLVMGetBitcodeModuleProvider(LLVMMemoryBufferRef MemBuf,
LLVMModuleProviderRef *OutMP,
char **OutMessage) {
return LLVMGetBitcodeModuleProviderInContext(LLVMGetGlobalContext(), MemBuf,
OutMP, OutMessage);
}