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write out the symtab for globals. 

llvm-svn: 36374
This commit is contained in:
Chris Lattner 2007-04-23 20:35:01 +00:00
parent 7abd70a4a9
commit 215e9cd3c2
1 changed files with 70 additions and 33 deletions
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103
llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
View File

@ -18,6 +18,7 @@
#include "llvm/DerivedTypes.h"
#include "llvm/Module.h"
#include "llvm/TypeSymbolTable.h"
#include "llvm/ValueSymbolTable.h"
#include "llvm/Support/MathExtras.h"
using namespace llvm;
@ -126,39 +127,6 @@ static void WriteTypeTable(const ValueEnumerator &VE, BitstreamWriter &Stream) {
Stream.ExitBlock();
}
/// WriteTypeSymbolTable - Emit a block for the specified type symtab.
static void WriteTypeSymbolTable(const TypeSymbolTable &TST,
const ValueEnumerator &VE,
BitstreamWriter &Stream) {
if (TST.empty()) return;
Stream.EnterSubblock(bitc::TYPE_SYMTAB_BLOCK_ID, 3);
// FIXME: Set up the abbrev, we know how many types there are!
// FIXME: We know if the type names can use 7-bit ascii.
SmallVector<unsigned, 64> NameVals;
for (TypeSymbolTable::const_iterator TI = TST.begin(), TE = TST.end();
TI != TE; ++TI) {
unsigned AbbrevToUse = 0;
// TST_ENTRY: [typeid, namelen, namechar x N]
NameVals.push_back(VE.getTypeID(TI->second));
const std::string &Str = TI->first;
NameVals.push_back(Str.size());
for (unsigned i = 0, e = Str.size(); i != e; ++i)
NameVals.push_back(Str[i]);
// Emit the finished record.
Stream.EmitRecord(bitc::TST_ENTRY_CODE, NameVals, AbbrevToUse);
NameVals.clear();
}
Stream.ExitBlock();
}
static unsigned getEncodedLinkage(const GlobalValue *GV) {
switch (GV->getLinkage()) {
default: assert(0 && "Invalid linkage!");
@ -302,6 +270,71 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
}
/// WriteTypeSymbolTable - Emit a block for the specified type symtab.
static void WriteTypeSymbolTable(const TypeSymbolTable &TST,
const ValueEnumerator &VE,
BitstreamWriter &Stream) {
if (TST.empty()) return;
Stream.EnterSubblock(bitc::TYPE_SYMTAB_BLOCK_ID, 3);
// FIXME: Set up the abbrev, we know how many types there are!
// FIXME: We know if the type names can use 7-bit ascii.
SmallVector<unsigned, 64> NameVals;
for (TypeSymbolTable::const_iterator TI = TST.begin(), TE = TST.end();
TI != TE; ++TI) {
unsigned AbbrevToUse = 0;
// TST_ENTRY: [typeid, namelen, namechar x N]
NameVals.push_back(VE.getTypeID(TI->second));
const std::string &Str = TI->first;
NameVals.push_back(Str.size());
for (unsigned i = 0, e = Str.size(); i != e; ++i)
NameVals.push_back(Str[i]);
// Emit the finished record.
Stream.EmitRecord(bitc::TST_ENTRY_CODE, NameVals, AbbrevToUse);
NameVals.clear();
}
Stream.ExitBlock();
}
// Emit names for globals/functions etc.
static void WriteValueSymbolTable(const ValueSymbolTable &VST,
const ValueEnumerator &VE,
BitstreamWriter &Stream) {
if (VST.empty()) return;
Stream.EnterSubblock(bitc::VALUE_SYMTAB_BLOCK_ID, 3);
// FIXME: Set up the abbrev, we know how many values there are!
// FIXME: We know if the type names can use 7-bit ascii.
SmallVector<unsigned, 64> NameVals;
for (ValueSymbolTable::const_iterator SI = VST.begin(), SE = VST.end();
SI != SE; ++SI) {
unsigned AbbrevToUse = 0;
// VST_ENTRY: [valueid, namelen, namechar x N]
NameVals.push_back(VE.getValueID(SI->getValue()));
NameVals.push_back(SI->getKeyLength());
for (const char *P = SI->getKeyData(),
*E = SI->getKeyData()+SI->getKeyLength(); P != E; ++P)
NameVals.push_back((unsigned char)*P);
// Emit the finished record.
Stream.EmitRecord(bitc::VST_ENTRY_CODE, NameVals, AbbrevToUse);
NameVals.clear();
}
Stream.ExitBlock();
}
/// WriteModule - Emit the specified module to the bitstream.
static void WriteModule(const Module *M, BitstreamWriter &Stream) {
Stream.EnterSubblock(bitc::MODULE_BLOCK_ID, 3);
@ -327,6 +360,10 @@ static void WriteModule(const Module *M, BitstreamWriter &Stream) {
// Emit the type symbol table information.
WriteTypeSymbolTable(M->getTypeSymbolTable(), VE, Stream);
// Emit names for globals/functions etc.
WriteValueSymbolTable(M->getValueSymbolTable(), VE, Stream);
Stream.ExitBlock();
}