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simplify this code now that each constant pool entry is not separately allocated

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26079 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-02-09 04:49:59 +00:00
parent 3029f92051
commit 239862ce99
1 changed files with 16 additions and 15 deletions
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31
lib/ExecutionEngine/JIT/JITEmitter.cpp
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@ -419,18 +419,19 @@ namespace {
// save CurBlock and CurByte here.
unsigned char *SavedCurBlock, *SavedCurByte;
// ConstantPoolAddresses - Contains the location for each entry in the
// constant pool.
std::vector<void*> ConstantPoolAddresses;
/// Relocations - These are the relocations that the function needs, as
/// emitted.
std::vector<MachineRelocation> Relocations;
/// ConstantPool - The constant pool for the current function.
///
MachineConstantPool *ConstantPool;
/// ConstantPoolBase - A pointer to the first entry in the constant pool.
///
void *ConstantPoolBase;
public:
JITEmitter(JIT &jit)
:MemMgr(jit.getJITInfo().needsGOT())
{
JITEmitter(JIT &jit) : MemMgr(jit.getJITInfo().needsGOT()) {
TheJIT = &jit;
DEBUG(std::cerr <<
(MemMgr.isManagingGOT() ? "JIT is managing GOT\n"
@ -562,7 +563,6 @@ void JITEmitter::finishFunction(MachineFunction &F) {
<< ": " << CurByte-CurBlock << " bytes of text, "
<< Relocations.size() << " relocations\n");
Relocations.clear();
ConstantPoolAddresses.clear();
}
void JITEmitter::emitConstantPool(MachineConstantPool *MCP) {
@ -572,14 +572,14 @@ void JITEmitter::emitConstantPool(MachineConstantPool *MCP) {
unsigned Size = Constants.back().Offset;
Size += TheJIT->getTargetData().getTypeSize(Constants.back().Val->getType());
void *Addr = MemMgr.allocateConstant(Size,
ConstantPoolBase = MemMgr.allocateConstant(Size,
1 << MCP->getConstantPoolAlignment());
// FIXME: Can eliminate ConstantPoolAddresses!
ConstantPool = MCP;
// Initialize the memory for all of the constant pool entries.
for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
void *CAddr = (char*)Addr+Constants[i].Offset;
void *CAddr = (char*)ConstantPoolBase+Constants[i].Offset;
TheJIT->InitializeMemory(Constants[i].Val, CAddr);
ConstantPoolAddresses.push_back(CAddr);
}
}
@ -615,9 +615,10 @@ void JITEmitter::emitWordAt(unsigned W, unsigned *Ptr) {
// method.
//
uint64_t JITEmitter::getConstantPoolEntryAddress(unsigned ConstantNum) {
assert(ConstantNum < ConstantPoolAddresses.size() &&
assert(ConstantNum < ConstantPool->getConstants().size() &&
"Invalid ConstantPoolIndex!");
return (intptr_t)ConstantPoolAddresses[ConstantNum];
return (intptr_t)ConstantPoolBase +
ConstantPool->getConstants()[ConstantNum].Offset;
}
unsigned char* JITEmitter::allocateGlobal(unsigned size, unsigned alignment)