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add bitcode support

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36856 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2007-05-06 06:18:07 +00:00
parent 1a019e5ffd
commit e07c15c734
4 changed files with 88 additions and 100 deletions
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48
lib/Archive/ArchiveReader.cpp
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@ -13,10 +13,14 @@
#include "ArchiveInternals.h"
#include "llvm/Bytecode/Reader.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/Support/Compressor.h"
#include "llvm/Support/MemoryBuffer.h"
#include <memory>
using namespace llvm;
static bool Bitcode = false;
/// Read a variable-bit-rate encoded unsigned integer
inline unsigned readInteger(const char*&At, const char*End){
unsigned Shift = 0;
@ -205,6 +209,7 @@ Archive::parseMemberHeader(const char*& At, const char* End, std::string* error)
// Determine if this is a bytecode file
switch (sys::IdentifyFileType(At, 4)) {
case sys::Bitcode_FileType:
case sys::Bytecode_FileType:
flags |= ArchiveMember::BytecodeFlag;
break;
@ -350,10 +355,21 @@ Archive::getAllModules(std::vector<Module*>& Modules, std::string* ErrMessage) {
if (I->isBytecode() || I->isCompressedBytecode()) {
std::string FullMemberName = archPath.toString() +
"(" + I->getPath().toString() + ")";
Module* M = ParseBytecodeBuffer((const unsigned char*)I->getData(),
I->getSize(), FullMemberName,
Compressor::decompressToNewBuffer,
ErrMessage);
Module *M;
if (Bitcode) {
MemoryBuffer *Buffer =
MemoryBuffer::getNewMemBuffer(I->getSize(), FullMemberName.c_str());
memcpy((char*)Buffer->getBufferStart(), I->getData(), I->getSize());
M = ParseBitcodeFile(Buffer, ErrMessage);
delete Buffer;
} else {
M = ParseBytecodeBuffer((const unsigned char*)I->getData(),
I->getSize(), FullMemberName,
Compressor::decompressToNewBuffer,
ErrMessage);
}
if (!M)
return true;
@ -486,7 +502,15 @@ Archive::findModuleDefiningSymbol(const std::string& symbol,
// Now, load the bytecode module to get the ModuleProvider
std::string FullMemberName = archPath.toString() + "(" +
mbr->getPath().toString() + ")";
ModuleProvider* mp = getBytecodeBufferModuleProvider(
ModuleProvider* mp;
if (Bitcode) {
MemoryBuffer *Buffer =MemoryBuffer::getNewMemBuffer(mbr->getSize(),
FullMemberName.c_str());
memcpy((char*)Buffer->getBufferStart(), mbr->getData(), mbr->getSize());
mp = getBitcodeModuleProvider(Buffer, ErrMsg);
} else
mp = getBytecodeBufferModuleProvider(
(const unsigned char*) mbr->getData(), mbr->getSize(),
FullMemberName, Decompressor, ErrMsg, 0);
if (!mp)
@ -612,8 +636,18 @@ bool Archive::isBytecodeArchive() {
std::string FullMemberName =
archPath.toString() + "(" + I->getPath().toString() + ")";
Module* M = ParseBytecodeBuffer((const unsigned char*)I->getData(),
I->getSize(), FullMemberName);
Module *M;
if (Bitcode) {
MemoryBuffer *Buffer =
MemoryBuffer::getNewMemBuffer(I->getSize(), FullMemberName.c_str());
memcpy((char*)Buffer->getBufferStart(), I->getData(), I->getSize());
M = ParseBitcodeFile(Buffer);
delete Buffer;
} else {
M = ParseBytecodeBuffer((const unsigned char*)I->getData(),
I->getSize(), FullMemberName);
}
if (!M)
return false; // Couldn't parse bytecode, not a bytecode archive.
delete M;