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For bug 122:
Separate Types from Values because Type no longer inherits from Value. The changes for this are too numerous to list. In essence, any data structure that contained a Value was doubled so that Types could be contained similarly. New members include Types, TypeMap, CompactionTypes, and CompactionTypeMap. Functions taking a Value* were overloaded with a variant that takes a Type* that acts on the new data structures. llvm-svn: 14608
This commit is contained in:
Reid Spencer
parent
50fc2ffa25
commit
f15d7739d1
@ -14,19 +14,24 @@
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/SlotCalculator.h"
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#include "SlotCalculator.h"
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#include "llvm/Constants.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/iOther.h"
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#include "llvm/Function.h"
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#include "llvm/Module.h"
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#include "llvm/SymbolTable.h"
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#include "llvm/Type.h"
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#include "llvm/Analysis/ConstantsScanner.h"
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#include "Support/PostOrderIterator.h"
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#include "Support/STLExtras.h"
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#include <algorithm>
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#include <functional>
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using namespace llvm;
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#if 0
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#include <iostream>
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#define SC_DEBUG(X) std::cerr << X
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#else
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#define SC_DEBUG(X)
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@ -34,6 +39,7 @@ using namespace llvm;
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SlotCalculator::SlotCalculator(const Module *M ) {
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ModuleContainsAllFunctionConstants = false;
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ModuleTypeLevel = 0;
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TheModule = M;
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// Preload table... Make sure that all of the primitive types are in the table
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@ -42,7 +48,7 @@ SlotCalculator::SlotCalculator(const Module *M ) {
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SC_DEBUG("Inserting primitive types:\n");
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for (unsigned i = 0; i < Type::FirstDerivedTyID; ++i) {
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assert(Type::getPrimitiveType((Type::TypeID)i));
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insertValue(Type::getPrimitiveType((Type::TypeID)i), true);
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insertType(Type::getPrimitiveType((Type::TypeID)i), true);
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}
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if (M == 0) return; // Empty table...
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@ -59,7 +65,7 @@ SlotCalculator::SlotCalculator(const Function *M ) {
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SC_DEBUG("Inserting primitive types:\n");
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for (unsigned i = 0; i < Type::FirstDerivedTyID; ++i) {
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assert(Type::getPrimitiveType((Type::TypeID)i));
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insertValue(Type::getPrimitiveType((Type::TypeID)i), true);
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insertType(Type::getPrimitiveType((Type::TypeID)i), true);
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}
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if (TheModule == 0) return; // Empty table...
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@ -78,8 +84,13 @@ unsigned SlotCalculator::getGlobalSlot(const Value *V) const {
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return I->second;
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}
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unsigned SlotCalculator::getGlobalSlot(const Type* T) const {
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std::map<const Type*, unsigned>::const_iterator I = TypeMap.find(T);
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assert(I != TypeMap.end() && "Didn't find global slot entry!");
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return I->second;
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}
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SlotCalculator::TypePlane &SlotCalculator::getPlane(unsigned Plane) {
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unsigned PIdx = Plane;
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if (CompactionTable.empty()) { // No compaction table active?
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// fall out
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} else if (!CompactionTable[Plane].empty()) { // Compaction table active.
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@ -89,22 +100,21 @@ SlotCalculator::TypePlane &SlotCalculator::getPlane(unsigned Plane) {
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// Final case: compaction table active, but this plane is not
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// compactified. If the type plane is compactified, unmap back to the
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// global type plane corresponding to "Plane".
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if (!CompactionTable[Type::TypeTyID].empty()) {
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const Type *Ty = cast<Type>(CompactionTable[Type::TypeTyID][Plane]);
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std::map<const Value*, unsigned>::iterator It = NodeMap.find(Ty);
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assert(It != NodeMap.end() && "Type not in global constant map?");
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PIdx = It->second;
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if (!CompactionTypes.empty()) {
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const Type *Ty = CompactionTypes[Plane];
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TypeMapType::iterator It = TypeMap.find(Ty);
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assert(It != TypeMap.end() && "Type not in global constant map?");
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Plane = It->second;
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}
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}
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// Okay we are just returning an entry out of the main Table. Make sure the
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// plane exists and return it.
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if (PIdx >= Table.size())
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Table.resize(PIdx+1);
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return Table[PIdx];
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if (Plane >= Table.size())
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Table.resize(Plane+1);
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return Table[Plane];
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}
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// processModule - Process all of the module level function declarations and
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// types that are available.
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//
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@ -135,28 +145,27 @@ void SlotCalculator::processModule() {
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// that contain constant strings so that the strings occur at the start of the
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// plane, not somewhere in the middle.
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//
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TypePlane &Types = Table[Type::TypeTyID];
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for (unsigned plane = 0, e = Table.size(); plane != e; ++plane) {
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if (const ArrayType *AT = dyn_cast<ArrayType>(Types[plane]))
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if (AT->getElementType() == Type::SByteTy ||
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AT->getElementType() == Type::UByteTy) {
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TypePlane &Plane = Table[plane];
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unsigned FirstNonStringID = 0;
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for (unsigned i = 0, e = Plane.size(); i != e; ++i)
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if (isa<ConstantAggregateZero>(Plane[i]) ||
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cast<ConstantArray>(Plane[i])->isString()) {
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// Check to see if we have to shuffle this string around. If not,
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// don't do anything.
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if (i != FirstNonStringID) {
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// Swap the plane entries....
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std::swap(Plane[i], Plane[FirstNonStringID]);
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// Keep the NodeMap up to date.
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NodeMap[Plane[i]] = i;
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NodeMap[Plane[FirstNonStringID]] = FirstNonStringID;
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}
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++FirstNonStringID;
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}
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AT->getElementType() == Type::UByteTy) {
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TypePlane &Plane = Table[plane];
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unsigned FirstNonStringID = 0;
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for (unsigned i = 0, e = Plane.size(); i != e; ++i)
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if (isa<ConstantAggregateZero>(Plane[i]) ||
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cast<ConstantArray>(Plane[i])->isString()) {
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// Check to see if we have to shuffle this string around. If not,
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// don't do anything.
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if (i != FirstNonStringID) {
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// Swap the plane entries....
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std::swap(Plane[i], Plane[FirstNonStringID]);
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// Keep the NodeMap up to date.
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NodeMap[Plane[i]] = i;
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NodeMap[Plane[FirstNonStringID]] = FirstNonStringID;
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}
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++FirstNonStringID;
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}
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}
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}
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@ -178,11 +187,11 @@ void SlotCalculator::processModule() {
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F != E; ++F) {
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for (const_inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I){
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for (unsigned op = 0, e = I->getNumOperands(); op != e; ++op)
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if (isa<Constant>(I->getOperand(op)))
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getOrCreateSlot(I->getOperand(op));
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if (isa<Constant>(I->getOperand(op)))
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getOrCreateSlot(I->getOperand(op));
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getOrCreateSlot(I->getType());
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if (const VANextInst *VAN = dyn_cast<VANextInst>(&*I))
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getOrCreateSlot(VAN->getArgType());
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getOrCreateSlot(VAN->getArgType());
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}
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processSymbolTableConstants(&F->getSymbolTable());
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}
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@ -201,31 +210,24 @@ void SlotCalculator::processModule() {
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// all non-value types are pushed to the end of the type table, giving nice
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// low numbers to the types that can be used by instructions, thus reducing
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// the amount of explodage we suffer.
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if (Table[Type::TypeTyID].size() >= 64) {
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// Scan through the type table moving value types to the start of the table.
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TypePlane *Types = &Table[Type::TypeTyID];
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if (Types.size() >= 64) {
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unsigned FirstNonValueTypeID = 0;
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for (unsigned i = 0, e = Types->size(); i != e; ++i)
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if (cast<Type>((*Types)[i])->isFirstClassType() ||
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cast<Type>((*Types)[i])->isPrimitiveType()) {
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for (unsigned i = 0, e = Types.size(); i != e; ++i)
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if (Types[i]->isFirstClassType() || Types[i]->isPrimitiveType()) {
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// Check to see if we have to shuffle this type around. If not, don't
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// do anything.
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if (i != FirstNonValueTypeID) {
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assert(i != Type::TypeTyID && FirstNonValueTypeID != Type::TypeTyID &&
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"Cannot move around the type plane!");
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// Swap the type ID's.
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std::swap((*Types)[i], (*Types)[FirstNonValueTypeID]);
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std::swap(Types[i], Types[FirstNonValueTypeID]);
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// Keep the NodeMap up to date.
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NodeMap[(*Types)[i]] = i;
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NodeMap[(*Types)[FirstNonValueTypeID]] = FirstNonValueTypeID;
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// Keep the TypeMap up to date.
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TypeMap[Types[i]] = i;
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TypeMap[Types[FirstNonValueTypeID]] = FirstNonValueTypeID;
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// When we move a type, make sure to move its value plane as needed.
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if (Table.size() > FirstNonValueTypeID) {
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if (Table.size() <= i) Table.resize(i+1);
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std::swap(Table[i], Table[FirstNonValueTypeID]);
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Types = &Table[Type::TypeTyID];
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}
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}
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++FirstNonValueTypeID;
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@ -248,7 +250,7 @@ void SlotCalculator::processSymbolTable(const SymbolTable *ST) {
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for (SymbolTable::plane_const_iterator PI = ST->plane_begin(),
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PE = ST->plane_end(); PI != PE; ++PI)
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for (SymbolTable::value_const_iterator VI = PI->second.begin(),
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VE = PI->second.end(); VI != VE; ++VI)
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VE = PI->second.end(); VI != VE; ++VI)
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getOrCreateSlot(VI->second);
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}
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@ -262,14 +264,15 @@ void SlotCalculator::processSymbolTableConstants(const SymbolTable *ST) {
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for (SymbolTable::plane_const_iterator PI = ST->plane_begin(),
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PE = ST->plane_end(); PI != PE; ++PI)
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for (SymbolTable::value_const_iterator VI = PI->second.begin(),
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VE = PI->second.end(); VI != VE; ++VI)
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VE = PI->second.end(); VI != VE; ++VI)
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if (isa<Constant>(VI->second))
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getOrCreateSlot(VI->second);
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getOrCreateSlot(VI->second);
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}
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void SlotCalculator::incorporateFunction(const Function *F) {
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assert(ModuleLevel.size() == 0 && "Module already incorporated!");
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assert((ModuleLevel.size() == 0 ||
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ModuleTypeLevel == 0) && "Module already incorporated!");
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SC_DEBUG("begin processFunction!\n");
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@ -281,6 +284,7 @@ void SlotCalculator::incorporateFunction(const Function *F) {
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ModuleLevel.resize(getNumPlanes());
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for (unsigned i = 0, e = getNumPlanes(); i != e; ++i)
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ModuleLevel[i] = getPlane(i).size();
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ModuleTypeLevel = Types.size();
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// Iterate over function arguments, adding them to the value table...
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for(Function::const_aiterator I = F->abegin(), E = F->aend(); I != E; ++I)
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@ -295,8 +299,12 @@ void SlotCalculator::incorporateFunction(const Function *F) {
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// Emit all of the constants that are being used by the instructions in
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// the function...
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for_each(constant_begin(F), constant_end(F),
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bind_obj(this, &SlotCalculator::getOrCreateSlot));
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constant_iterator CI = constant_begin(F);
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constant_iterator CE = constant_end(F);
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while ( CI != CE ) {
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this->getOrCreateSlot(*CI);
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++CI;
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}
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// If there is a symbol table, it is possible that the user has names for
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// constants that are not being used. In this case, we will have problems
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@ -328,13 +336,15 @@ void SlotCalculator::incorporateFunction(const Function *F) {
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}
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void SlotCalculator::purgeFunction() {
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assert(ModuleLevel.size() != 0 && "Module not incorporated!");
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assert((ModuleLevel.size() != 0 ||
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ModuleTypeLevel != 0) && "Module not incorporated!");
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unsigned NumModuleTypes = ModuleLevel.size();
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SC_DEBUG("begin purgeFunction!\n");
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// First, free the compaction map if used.
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CompactionNodeMap.clear();
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CompactionTypeMap.clear();
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// Next, remove values from existing type planes
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for (unsigned i = 0; i != NumModuleTypes; ++i) {
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@ -355,8 +365,10 @@ void SlotCalculator::purgeFunction() {
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// We don't need this state anymore, free it up.
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ModuleLevel.clear();
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ModuleTypeLevel = 0;
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// Finally, remove any type planes defined by the function...
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CompactionTypes.clear();
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if (!CompactionTable.empty()) {
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CompactionTable.clear();
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} else {
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@ -379,8 +391,7 @@ void SlotCalculator::purgeFunction() {
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}
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static inline bool hasNullValue(unsigned TyID) {
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return TyID != Type::LabelTyID && TyID != Type::TypeTyID &&
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TyID != Type::VoidTyID;
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return TyID != Type::LabelTyID && TyID != Type::VoidTyID;
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}
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/// getOrCreateCompactionTableSlot - This method is used to build up the initial
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@ -395,15 +406,13 @@ unsigned SlotCalculator::getOrCreateCompactionTableSlot(const Value *V) {
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// Make sure the type is in the table.
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unsigned Ty;
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if (!CompactionTable[Type::TypeTyID].empty())
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if (!CompactionTypes.empty())
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Ty = getOrCreateCompactionTableSlot(V->getType());
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else // If the type plane was decompactified, use the global plane ID
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Ty = getSlot(V->getType());
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if (CompactionTable.size() <= Ty)
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CompactionTable.resize(Ty+1);
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assert(!isa<Type>(V) || ModuleLevel.empty());
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TypePlane &TyPlane = CompactionTable[Ty];
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// Make sure to insert the null entry if the thing we are inserting is not a
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@ -422,6 +431,20 @@ unsigned SlotCalculator::getOrCreateCompactionTableSlot(const Value *V) {
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return SlotNo;
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}
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/// getOrCreateCompactionTableSlot - This method is used to build up the initial
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/// approximation of the compaction table.
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unsigned SlotCalculator::getOrCreateCompactionTableSlot(const Type *T) {
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std::map<const Type*, unsigned>::iterator I =
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CompactionTypeMap.lower_bound(T);
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if (I != CompactionTypeMap.end() && I->first == T)
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return I->second; // Already exists?
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unsigned SlotNo = CompactionTypes.size();
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SC_DEBUG("Inserting Compaction Type #" << SlotNo << ": " << T << "\n");
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CompactionTypes.push_back(T);
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CompactionTypeMap.insert(std::make_pair(T, SlotNo));
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return SlotNo;
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}
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/// buildCompactionTable - Since all of the function constants and types are
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/// stored in the module-level constant table, we don't need to emit a function
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@ -432,12 +455,13 @@ unsigned SlotCalculator::getOrCreateCompactionTableSlot(const Value *V) {
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/// identifiers.
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void SlotCalculator::buildCompactionTable(const Function *F) {
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assert(CompactionNodeMap.empty() && "Compaction table already built!");
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assert(CompactionTypeMap.empty() && "Compaction types already built!");
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// First step, insert the primitive types.
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CompactionTable.resize(Type::TypeTyID+1);
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for (unsigned i = 0; i != Type::FirstDerivedTyID; ++i) {
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CompactionTable.resize(Type::LastPrimitiveTyID+1);
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for (unsigned i = 0; i <= Type::LastPrimitiveTyID; ++i) {
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const Type *PrimTy = Type::getPrimitiveType((Type::TypeID)i);
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CompactionTable[Type::TypeTyID].push_back(PrimTy);
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CompactionNodeMap[PrimTy] = i;
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CompactionTypes.push_back(PrimTy);
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CompactionTypeMap[PrimTy] = i;
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}
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// Next, include any types used by function arguments.
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@ -445,7 +469,7 @@ void SlotCalculator::buildCompactionTable(const Function *F) {
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getOrCreateCompactionTableSlot(I->getType());
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// Next, find all of the types and values that are referred to by the
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// instructions in the program.
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// instructions in the function.
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for (const_inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I) {
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getOrCreateCompactionTableSlot(I->getType());
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for (unsigned op = 0, e = I->getNumOperands(); op != e; ++op)
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@ -466,19 +490,22 @@ void SlotCalculator::buildCompactionTable(const Function *F) {
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for (SymbolTable::plane_const_iterator PI = ST.plane_begin(),
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PE = ST.plane_end(); PI != PE; ++PI)
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for (SymbolTable::value_const_iterator VI = PI->second.begin(),
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VE = PI->second.end(); VI != VE; ++VI)
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VE = PI->second.end(); VI != VE; ++VI)
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if (isa<Constant>(VI->second) || isa<GlobalValue>(VI->second))
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getOrCreateCompactionTableSlot(VI->second);
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getOrCreateCompactionTableSlot(VI->second);
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// Now that we have all of the values in the table, and know what types are
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// referenced, make sure that there is at least the zero initializer in any
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// used type plane. Since the type was used, we will be emitting instructions
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// to the plane even if there are no constants in it.
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CompactionTable.resize(CompactionTable[Type::TypeTyID].size());
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CompactionTable.resize(CompactionTypes.size());
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for (unsigned i = 0, e = CompactionTable.size(); i != e; ++i)
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if (CompactionTable[i].empty() && i != Type::VoidTyID &&
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if (CompactionTable[i].empty() && (i != Type::VoidTyID) &&
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i != Type::LabelTyID) {
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const Type *Ty = cast<Type>(CompactionTable[Type::TypeTyID][i]);
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const Type *Ty = CompactionTypes[i];
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SC_DEBUG("Getting Null Value #" << i << " for Type " << Ty << "\n");
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assert(Ty->getTypeID() != Type::VoidTyID);
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assert(Ty->getTypeID() != Type::LabelTyID);
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getOrCreateCompactionTableSlot(Constant::getNullValue(Ty));
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}
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@ -487,13 +514,13 @@ void SlotCalculator::buildCompactionTable(const Function *F) {
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// it will not save us anything. Because we have not yet incorporated the
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// function body itself yet, we don't know whether or not it's a good idea to
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// compactify other planes. We will defer this decision until later.
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TypePlane &GlobalTypes = Table[Type::TypeTyID];
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TypeList &GlobalTypes = Types;
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// All of the values types will be scrunched to the start of the types plane
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// of the global table. Figure out just how many there are.
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assert(!GlobalTypes.empty() && "No global types???");
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unsigned NumFCTypes = GlobalTypes.size()-1;
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while (!cast<Type>(GlobalTypes[NumFCTypes])->isFirstClassType())
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while (!GlobalTypes[NumFCTypes]->isFirstClassType())
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--NumFCTypes;
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// If there are fewer that 64 types, no instructions will be exploded due to
|
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@ -506,29 +533,27 @@ void SlotCalculator::buildCompactionTable(const Function *F) {
|
||||
// CompactionNodeMap for non-types though.
|
||||
std::vector<TypePlane> TmpCompactionTable;
|
||||
std::swap(CompactionTable, TmpCompactionTable);
|
||||
TypePlane Types;
|
||||
std::swap(Types, TmpCompactionTable[Type::TypeTyID]);
|
||||
TypeList TmpTypes;
|
||||
std::swap(TmpTypes, CompactionTypes);
|
||||
|
||||
// Move each plane back over to the uncompactified plane
|
||||
while (!Types.empty()) {
|
||||
const Type *Ty = cast<Type>(Types.back());
|
||||
Types.pop_back();
|
||||
CompactionNodeMap.erase(Ty); // Decompactify type!
|
||||
while (!TmpTypes.empty()) {
|
||||
const Type *Ty = TmpTypes.back();
|
||||
TmpTypes.pop_back();
|
||||
CompactionTypeMap.erase(Ty); // Decompactify type!
|
||||
|
||||
if (Ty != Type::TypeTy) {
|
||||
// Find the global slot number for this type.
|
||||
int TySlot = getSlot(Ty);
|
||||
assert(TySlot != -1 && "Type doesn't exist in global table?");
|
||||
|
||||
// Now we know where to put the compaction table plane.
|
||||
if (CompactionTable.size() <= unsigned(TySlot))
|
||||
CompactionTable.resize(TySlot+1);
|
||||
// Move the plane back into the compaction table.
|
||||
std::swap(CompactionTable[TySlot], TmpCompactionTable[Types.size()]);
|
||||
// Find the global slot number for this type.
|
||||
int TySlot = getSlot(Ty);
|
||||
assert(TySlot != -1 && "Type doesn't exist in global table?");
|
||||
|
||||
// Now we know where to put the compaction table plane.
|
||||
if (CompactionTable.size() <= unsigned(TySlot))
|
||||
CompactionTable.resize(TySlot+1);
|
||||
// Move the plane back into the compaction table.
|
||||
std::swap(CompactionTable[TySlot], TmpCompactionTable[TmpTypes.size()]);
|
||||
|
||||
// And remove the empty plane we just moved in.
|
||||
TmpCompactionTable.pop_back();
|
||||
}
|
||||
// And remove the empty plane we just moved in.
|
||||
TmpCompactionTable.pop_back();
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -544,9 +569,9 @@ void SlotCalculator::buildCompactionTable(const Function *F) {
|
||||
/// Note that the type plane has already been compactified if possible.
|
||||
///
|
||||
void SlotCalculator::pruneCompactionTable() {
|
||||
TypePlane &TyPlane = CompactionTable[Type::TypeTyID];
|
||||
TypeList &TyPlane = CompactionTypes;
|
||||
for (unsigned ctp = 0, e = CompactionTable.size(); ctp != e; ++ctp)
|
||||
if (ctp != Type::TypeTyID && !CompactionTable[ctp].empty()) {
|
||||
if (!CompactionTable[ctp].empty()) {
|
||||
TypePlane &CPlane = CompactionTable[ctp];
|
||||
unsigned GlobalSlot = ctp;
|
||||
if (!TyPlane.empty())
|
||||
@ -603,7 +628,6 @@ void SlotCalculator::pruneCompactionTable() {
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int SlotCalculator::getSlot(const Value *V) const {
|
||||
// If there is a CompactionTable active...
|
||||
if (!CompactionNodeMap.empty()) {
|
||||
@ -626,6 +650,23 @@ int SlotCalculator::getSlot(const Value *V) const {
|
||||
return -1;
|
||||
}
|
||||
|
||||
int SlotCalculator::getSlot(const Type*T) const {
|
||||
// If there is a CompactionTable active...
|
||||
if (!CompactionTypeMap.empty()) {
|
||||
std::map<const Type*, unsigned>::const_iterator I =
|
||||
CompactionTypeMap.find(T);
|
||||
if (I != CompactionTypeMap.end())
|
||||
return (int)I->second;
|
||||
// Otherwise, if it's not in the compaction table, it must be in a
|
||||
// non-compactified plane.
|
||||
}
|
||||
|
||||
std::map<const Type*, unsigned>::const_iterator I = TypeMap.find(T);
|
||||
if (I != TypeMap.end())
|
||||
return (int)I->second;
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
int SlotCalculator::getOrCreateSlot(const Value *V) {
|
||||
if (V->getType() == Type::VoidTy) return -1;
|
||||
@ -665,6 +706,11 @@ int SlotCalculator::getOrCreateSlot(const Value *V) {
|
||||
return insertValue(V);
|
||||
}
|
||||
|
||||
int SlotCalculator::getOrCreateSlot(const Type* T) {
|
||||
int SlotNo = getSlot(T); // Check to see if it's already in!
|
||||
if (SlotNo != -1) return SlotNo;
|
||||
return insertType(T);
|
||||
}
|
||||
|
||||
int SlotCalculator::insertValue(const Value *D, bool dontIgnore) {
|
||||
assert(D && "Can't insert a null value!");
|
||||
@ -674,7 +720,7 @@ int SlotCalculator::insertValue(const Value *D, bool dontIgnore) {
|
||||
// insert the value into the compaction map, not into the global map.
|
||||
if (!CompactionNodeMap.empty()) {
|
||||
if (D->getType() == Type::VoidTy) return -1; // Do not insert void values
|
||||
assert(!isa<Type>(D) && !isa<Constant>(D) && !isa<GlobalValue>(D) &&
|
||||
assert(!isa<Constant>(D) && !isa<GlobalValue>(D) &&
|
||||
"Types, constants, and globals should be in global SymTab!");
|
||||
|
||||
int Plane = getSlot(D->getType());
|
||||
@ -694,43 +740,48 @@ int SlotCalculator::insertValue(const Value *D, bool dontIgnore) {
|
||||
return -1; // We do need types unconditionally though
|
||||
}
|
||||
|
||||
// If it's a type, make sure that all subtypes of the type are included...
|
||||
if (const Type *TheTy = dyn_cast<Type>(D)) {
|
||||
|
||||
// Insert the current type before any subtypes. This is important because
|
||||
// recursive types elements are inserted in a bottom up order. Changing
|
||||
// this here can break things. For example:
|
||||
//
|
||||
// global { \2 * } { { \2 }* null }
|
||||
//
|
||||
int ResultSlot = doInsertValue(TheTy);
|
||||
SC_DEBUG(" Inserted type: " << TheTy->getDescription() << " slot=" <<
|
||||
ResultSlot << "\n");
|
||||
|
||||
// Loop over any contained types in the definition... in post
|
||||
// order.
|
||||
//
|
||||
for (po_iterator<const Type*> I = po_begin(TheTy), E = po_end(TheTy);
|
||||
I != E; ++I) {
|
||||
if (*I != TheTy) {
|
||||
const Type *SubTy = *I;
|
||||
// If we haven't seen this sub type before, add it to our type table!
|
||||
if (getSlot(SubTy) == -1) {
|
||||
SC_DEBUG(" Inserting subtype: " << SubTy->getDescription() << "\n");
|
||||
SC_DEBUG(int Slot = );
|
||||
doInsertValue(SubTy);
|
||||
SC_DEBUG(" Inserted subtype: " << SubTy->getDescription() <<
|
||||
" slot=" << Slot << "\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
return ResultSlot;
|
||||
}
|
||||
|
||||
// Okay, everything is happy, actually insert the silly value now...
|
||||
return doInsertValue(D);
|
||||
}
|
||||
|
||||
int SlotCalculator::insertType(const Type *Ty, bool dontIgnore) {
|
||||
assert(Ty && "Can't insert a null type!");
|
||||
assert(getSlot(Ty) == -1 && "Type is already in the table!");
|
||||
|
||||
// If we are building a compaction map, and if this plane is being compacted,
|
||||
// insert the value into the compaction map, not into the global map.
|
||||
if (!CompactionTypeMap.empty()) {
|
||||
getOrCreateCompactionTableSlot(Ty);
|
||||
}
|
||||
|
||||
// Insert the current type before any subtypes. This is important because
|
||||
// recursive types elements are inserted in a bottom up order. Changing
|
||||
// this here can break things. For example:
|
||||
//
|
||||
// global { \2 * } { { \2 }* null }
|
||||
//
|
||||
int ResultSlot = doInsertType(Ty);
|
||||
SC_DEBUG(" Inserted type: " << Ty->getDescription() << " slot=" <<
|
||||
ResultSlot << "\n");
|
||||
|
||||
// Loop over any contained types in the definition... in post
|
||||
// order.
|
||||
for (po_iterator<const Type*> I = po_begin(Ty), E = po_end(Ty);
|
||||
I != E; ++I) {
|
||||
if (*I != Ty) {
|
||||
const Type *SubTy = *I;
|
||||
// If we haven't seen this sub type before, add it to our type table!
|
||||
if (getSlot(SubTy) == -1) {
|
||||
SC_DEBUG(" Inserting subtype: " << SubTy->getDescription() << "\n");
|
||||
int Slot = doInsertType(SubTy);
|
||||
SC_DEBUG(" Inserted subtype: " << SubTy->getDescription() <<
|
||||
" slot=" << Slot << "\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
return ResultSlot;
|
||||
}
|
||||
|
||||
// doInsertValue - This is a small helper function to be called only
|
||||
// be insertValue.
|
||||
//
|
||||
@ -750,7 +801,7 @@ int SlotCalculator::doInsertValue(const Value *D) {
|
||||
ValSlot = getGlobalSlot(Typ);
|
||||
if (ValSlot == -1) { // Have we already entered this type?
|
||||
// Nope, this is the first we have seen the type, process it.
|
||||
ValSlot = insertValue(Typ, true);
|
||||
ValSlot = insertType(Typ, true);
|
||||
assert(ValSlot != -1 && "ProcessType returned -1 for a type?");
|
||||
}
|
||||
Ty = (unsigned)ValSlot;
|
||||
@ -778,10 +829,25 @@ int SlotCalculator::doInsertValue(const Value *D) {
|
||||
Table[Ty].push_back(D);
|
||||
|
||||
SC_DEBUG(" Inserting value [" << Ty << "] = " << D << " slot=" <<
|
||||
DestSlot << " [");
|
||||
DestSlot << " [");
|
||||
// G = Global, C = Constant, T = Type, F = Function, o = other
|
||||
SC_DEBUG((isa<GlobalVariable>(D) ? "G" : (isa<Constant>(D) ? "C" :
|
||||
(isa<Type>(D) ? "T" : (isa<Function>(D) ? "F" : "o")))));
|
||||
(isa<Function>(D) ? "F" : "o"))));
|
||||
SC_DEBUG("]\n");
|
||||
return (int)DestSlot;
|
||||
}
|
||||
|
||||
// doInsertType - This is a small helper function to be called only
|
||||
// be insertType.
|
||||
//
|
||||
int SlotCalculator::doInsertType(const Type *Ty) {
|
||||
|
||||
// Insert node into table and NodeMap...
|
||||
unsigned DestSlot = TypeMap[Ty] = Types.size();
|
||||
Types.push_back(Ty);
|
||||
|
||||
SC_DEBUG(" Inserting type [" << DestSlot << "] = " << Ty << "\n" );
|
||||
return (int)DestSlot;
|
||||
}
|
||||
|
||||
// vim: sw=2 ai
|
||||
|
||||
@ -26,6 +26,7 @@
|
||||
namespace llvm {
|
||||
|
||||
class Value;
|
||||
class Type;
|
||||
class Module;
|
||||
class Function;
|
||||
class SymbolTable;
|
||||
@ -34,9 +35,15 @@ class ConstantArray;
|
||||
class SlotCalculator {
|
||||
const Module *TheModule;
|
||||
|
||||
typedef std::vector<const Type*> TypeList;
|
||||
typedef std::vector<const Value*> TypePlane;
|
||||
std::vector<TypePlane> Table;
|
||||
std::map<const Value*, unsigned> NodeMap;
|
||||
TypeList Types;
|
||||
typedef std::map<const Value*, unsigned> NodeMapType;
|
||||
NodeMapType NodeMap;
|
||||
|
||||
typedef std::map<const Type*, unsigned> TypeMapType;
|
||||
TypeMapType TypeMap;
|
||||
|
||||
/// ConstantStrings - If we are indexing for a bytecode file, this keeps track
|
||||
/// of all of the constants strings that need to be emitted.
|
||||
@ -46,6 +53,7 @@ class SlotCalculator {
|
||||
/// and which values belong to the currently incorporated function.
|
||||
///
|
||||
std::vector<unsigned> ModuleLevel;
|
||||
unsigned ModuleTypeLevel;
|
||||
|
||||
/// ModuleContainsAllFunctionConstants - This flag is set to true if all
|
||||
/// function constants are incorporated into the module constant table. This
|
||||
@ -57,7 +65,11 @@ class SlotCalculator {
|
||||
/// instructions in a function body. The 'getSlot()' method automatically
|
||||
/// returns these entries if applicable, or the global entries if not.
|
||||
std::vector<TypePlane> CompactionTable;
|
||||
std::map<const Value*, unsigned> CompactionNodeMap;
|
||||
TypeList CompactionTypes;
|
||||
typedef std::map<const Value*, unsigned> CompactionNodeMapType;
|
||||
CompactionNodeMapType CompactionNodeMap;
|
||||
typedef std::map<const Type*, unsigned> CompactionTypeMapType;
|
||||
CompactionTypeMapType CompactionTypeMap;
|
||||
|
||||
SlotCalculator(const SlotCalculator &); // DO NOT IMPLEMENT
|
||||
void operator=(const SlotCalculator &); // DO NOT IMPLEMENT
|
||||
@ -70,10 +82,12 @@ public:
|
||||
/// plane. This returns < 0 on error!
|
||||
///
|
||||
int getSlot(const Value *V) const;
|
||||
int getSlot(const Type* T) const;
|
||||
|
||||
/// getGlobalSlot - Return a slot number from the global table. This can only
|
||||
/// be used when a compaction table is active.
|
||||
unsigned getGlobalSlot(const Value *V) const;
|
||||
unsigned getGlobalSlot(const Type *V) const;
|
||||
|
||||
inline unsigned getNumPlanes() const {
|
||||
if (CompactionTable.empty())
|
||||
@ -81,11 +95,29 @@ public:
|
||||
else
|
||||
return CompactionTable.size();
|
||||
}
|
||||
|
||||
inline unsigned getNumTypes() const {
|
||||
if (CompactionTypes.empty())
|
||||
return Types.size();
|
||||
else
|
||||
return CompactionTypes.size();
|
||||
}
|
||||
|
||||
inline unsigned getModuleLevel(unsigned Plane) const {
|
||||
return Plane < ModuleLevel.size() ? ModuleLevel[Plane] : 0;
|
||||
}
|
||||
|
||||
/// Returns the number of types in the type list that are at module level
|
||||
inline unsigned getModuleTypeLevel() const {
|
||||
return ModuleTypeLevel;
|
||||
}
|
||||
|
||||
TypePlane &getPlane(unsigned Plane);
|
||||
TypeList& getTypes() {
|
||||
if (!CompactionTypes.empty())
|
||||
return CompactionTypes;
|
||||
return Types;
|
||||
}
|
||||
|
||||
/// incorporateFunction/purgeFunction - If you'd like to deal with a function,
|
||||
/// use these two methods to get its data into the SlotCalculator!
|
||||
@ -104,21 +136,26 @@ public:
|
||||
return CompactionTable;
|
||||
}
|
||||
|
||||
const TypeList& getCompactionTypes() const { return CompactionTypes; }
|
||||
|
||||
private:
|
||||
// getOrCreateSlot - Values can be crammed into here at will... if
|
||||
// they haven't been inserted already, they get inserted, otherwise
|
||||
// they are ignored.
|
||||
//
|
||||
int getOrCreateSlot(const Value *D);
|
||||
int getOrCreateSlot(const Type* T);
|
||||
|
||||
// insertValue - Insert a value into the value table... Return the
|
||||
// slot that it occupies, or -1 if the declaration is to be ignored
|
||||
// because of the IgnoreNamedNodes flag.
|
||||
//
|
||||
int insertValue(const Value *D, bool dontIgnore = false);
|
||||
int insertType(const Type* T, bool dontIgnore = false );
|
||||
|
||||
// doInsertValue - Small helper function to be called only be insertVal.
|
||||
int doInsertValue(const Value *D);
|
||||
int doInsertType(const Type*T);
|
||||
|
||||
// processModule - Process all of the module level function declarations and
|
||||
// types that are available.
|
||||
@ -133,6 +170,7 @@ private:
|
||||
|
||||
void buildCompactionTable(const Function *F);
|
||||
unsigned getOrCreateCompactionTableSlot(const Value *V);
|
||||
unsigned getOrCreateCompactionTableSlot(const Type *V);
|
||||
void pruneCompactionTable();
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user