mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-20 10:30:03 +00:00
Refactor lookup_or_add to contain _MUCH_ less duplicated code. Add support for
numbering first class aggregate instructions while we're at it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84547 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
parent
e306d8d6cc
commit
d41ed4e2c4
@ -78,13 +78,10 @@ namespace {
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SHUFFLE, SELECT, TRUNC, ZEXT, SEXT, FPTOUI,
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FPTOSI, UITOFP, SITOFP, FPTRUNC, FPEXT,
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PTRTOINT, INTTOPTR, BITCAST, GEP, CALL, CONSTANT,
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EMPTY, TOMBSTONE };
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INSERTVALUE, EXTRACTVALUE, EMPTY, TOMBSTONE };
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ExpressionOpcode opcode;
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const Type* type;
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uint32_t firstVN;
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uint32_t secondVN;
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uint32_t thirdVN;
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SmallVector<uint32_t, 4> varargs;
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Value *function;
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@ -100,12 +97,6 @@ namespace {
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return false;
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else if (function != other.function)
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return false;
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else if (firstVN != other.firstVN)
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return false;
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else if (secondVN != other.secondVN)
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return false;
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else if (thirdVN != other.thirdVN)
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return false;
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else {
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if (varargs.size() != other.varargs.size())
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return false;
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@ -146,6 +137,10 @@ namespace {
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Expression create_expression(GetElementPtrInst* G);
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Expression create_expression(CallInst* C);
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Expression create_expression(Constant* C);
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Expression create_expression(ExtractValueInst* C);
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Expression create_expression(InsertValueInst* C);
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uint32_t lookup_or_add_call(CallInst* C);
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public:
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ValueTable() : nextValueNumber(1) { }
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uint32_t lookup_or_add(Value *V);
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@ -176,13 +171,8 @@ template <> struct DenseMapInfo<Expression> {
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static unsigned getHashValue(const Expression e) {
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unsigned hash = e.opcode;
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hash = e.firstVN + hash * 37;
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hash = e.secondVN + hash * 37;
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hash = e.thirdVN + hash * 37;
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hash = ((unsigned)((uintptr_t)e.type >> 4) ^
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(unsigned)((uintptr_t)e.type >> 9)) +
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hash * 37;
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(unsigned)((uintptr_t)e.type >> 9));
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for (SmallVector<uint32_t, 4>::const_iterator I = e.varargs.begin(),
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E = e.varargs.end(); I != E; ++I)
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@ -290,9 +280,6 @@ Expression ValueTable::create_expression(CallInst* C) {
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Expression e;
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e.type = C->getType();
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e.firstVN = 0;
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e.secondVN = 0;
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e.thirdVN = 0;
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e.function = C->getCalledFunction();
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e.opcode = Expression::CALL;
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@ -305,10 +292,8 @@ Expression ValueTable::create_expression(CallInst* C) {
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Expression ValueTable::create_expression(BinaryOperator* BO) {
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Expression e;
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e.firstVN = lookup_or_add(BO->getOperand(0));
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e.secondVN = lookup_or_add(BO->getOperand(1));
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e.thirdVN = 0;
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e.varargs.push_back(lookup_or_add(BO->getOperand(0)));
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e.varargs.push_back(lookup_or_add(BO->getOperand(1)));
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e.function = 0;
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e.type = BO->getType();
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e.opcode = getOpcode(BO);
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@ -319,9 +304,8 @@ Expression ValueTable::create_expression(BinaryOperator* BO) {
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Expression ValueTable::create_expression(CmpInst* C) {
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Expression e;
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e.firstVN = lookup_or_add(C->getOperand(0));
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e.secondVN = lookup_or_add(C->getOperand(1));
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e.thirdVN = 0;
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e.varargs.push_back(lookup_or_add(C->getOperand(0)));
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e.varargs.push_back(lookup_or_add(C->getOperand(1)));
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e.function = 0;
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e.type = C->getType();
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e.opcode = getOpcode(C);
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@ -332,9 +316,7 @@ Expression ValueTable::create_expression(CmpInst* C) {
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Expression ValueTable::create_expression(CastInst* C) {
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Expression e;
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e.firstVN = lookup_or_add(C->getOperand(0));
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e.secondVN = 0;
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e.thirdVN = 0;
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e.varargs.push_back(lookup_or_add(C->getOperand(0)));
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e.function = 0;
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e.type = C->getType();
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e.opcode = getOpcode(C);
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@ -345,9 +327,9 @@ Expression ValueTable::create_expression(CastInst* C) {
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Expression ValueTable::create_expression(ShuffleVectorInst* S) {
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Expression e;
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e.firstVN = lookup_or_add(S->getOperand(0));
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e.secondVN = lookup_or_add(S->getOperand(1));
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e.thirdVN = lookup_or_add(S->getOperand(2));
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e.varargs.push_back(lookup_or_add(S->getOperand(0)));
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e.varargs.push_back(lookup_or_add(S->getOperand(1)));
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e.varargs.push_back(lookup_or_add(S->getOperand(2)));
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e.function = 0;
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e.type = S->getType();
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e.opcode = Expression::SHUFFLE;
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@ -358,9 +340,8 @@ Expression ValueTable::create_expression(ShuffleVectorInst* S) {
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Expression ValueTable::create_expression(ExtractElementInst* E) {
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Expression e;
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e.firstVN = lookup_or_add(E->getOperand(0));
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e.secondVN = lookup_or_add(E->getOperand(1));
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e.thirdVN = 0;
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e.varargs.push_back(lookup_or_add(E->getOperand(0)));
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e.varargs.push_back(lookup_or_add(E->getOperand(1)));
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e.function = 0;
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e.type = E->getType();
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e.opcode = Expression::EXTRACT;
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@ -371,9 +352,9 @@ Expression ValueTable::create_expression(ExtractElementInst* E) {
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Expression ValueTable::create_expression(InsertElementInst* I) {
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Expression e;
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e.firstVN = lookup_or_add(I->getOperand(0));
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e.secondVN = lookup_or_add(I->getOperand(1));
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e.thirdVN = lookup_or_add(I->getOperand(2));
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e.varargs.push_back(lookup_or_add(I->getOperand(0)));
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e.varargs.push_back(lookup_or_add(I->getOperand(1)));
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e.varargs.push_back(lookup_or_add(I->getOperand(2)));
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e.function = 0;
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e.type = I->getType();
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e.opcode = Expression::INSERT;
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@ -384,9 +365,9 @@ Expression ValueTable::create_expression(InsertElementInst* I) {
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Expression ValueTable::create_expression(SelectInst* I) {
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Expression e;
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e.firstVN = lookup_or_add(I->getCondition());
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e.secondVN = lookup_or_add(I->getTrueValue());
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e.thirdVN = lookup_or_add(I->getFalseValue());
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e.varargs.push_back(lookup_or_add(I->getCondition()));
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e.varargs.push_back(lookup_or_add(I->getTrueValue()));
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e.varargs.push_back(lookup_or_add(I->getFalseValue()));
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e.function = 0;
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e.type = I->getType();
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e.opcode = Expression::SELECT;
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@ -397,9 +378,7 @@ Expression ValueTable::create_expression(SelectInst* I) {
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Expression ValueTable::create_expression(GetElementPtrInst* G) {
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Expression e;
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e.firstVN = lookup_or_add(G->getPointerOperand());
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e.secondVN = 0;
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e.thirdVN = 0;
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e.varargs.push_back(lookup_or_add(G->getPointerOperand()));
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e.function = 0;
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e.type = G->getType();
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e.opcode = Expression::GEP;
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@ -411,6 +390,35 @@ Expression ValueTable::create_expression(GetElementPtrInst* G) {
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return e;
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}
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Expression ValueTable::create_expression(ExtractValueInst* E) {
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Expression e;
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e.varargs.push_back(lookup_or_add(E->getAggregateOperand()));
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for (ExtractValueInst::idx_iterator II = E->idx_begin(), IE = E->idx_end();
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II != IE; ++II)
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e.varargs.push_back(*II);
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e.function = 0;
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e.type = E->getType();
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e.opcode = Expression::EXTRACTVALUE;
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return e;
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}
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Expression ValueTable::create_expression(InsertValueInst* E) {
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Expression e;
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e.varargs.push_back(lookup_or_add(E->getAggregateOperand()));
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e.varargs.push_back(lookup_or_add(E->getInsertedValueOperand()));
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for (InsertValueInst::idx_iterator II = E->idx_begin(), IE = E->idx_end();
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II != IE; ++II)
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e.varargs.push_back(*II);
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e.function = 0;
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e.type = E->getType();
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e.opcode = Expression::INSERTVALUE;
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return e;
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}
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//===----------------------------------------------------------------------===//
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// ValueTable External Functions
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//===----------------------------------------------------------------------===//
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@ -420,6 +428,112 @@ void ValueTable::add(Value *V, uint32_t num) {
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valueNumbering.insert(std::make_pair(V, num));
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}
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uint32_t ValueTable::lookup_or_add_call(CallInst* C) {
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if (AA->doesNotAccessMemory(C)) {
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Expression exp = create_expression(C);
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uint32_t& e = expressionNumbering[exp];
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if (!e) e = nextValueNumber++;
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valueNumbering[C] = e;
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return e;
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} else if (AA->onlyReadsMemory(C)) {
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Expression exp = create_expression(C);
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uint32_t& e = expressionNumbering[exp];
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if (!e) {
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e = nextValueNumber++;
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valueNumbering[C] = e;
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return e;
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}
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MemDepResult local_dep = MD->getDependency(C);
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if (!local_dep.isDef() && !local_dep.isNonLocal()) {
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valueNumbering[C] = nextValueNumber;
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return nextValueNumber++;
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}
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if (local_dep.isDef()) {
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CallInst* local_cdep = cast<CallInst>(local_dep.getInst());
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if (local_cdep->getNumOperands() != C->getNumOperands()) {
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valueNumbering[C] = nextValueNumber;
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return nextValueNumber++;
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}
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for (unsigned i = 1; i < C->getNumOperands(); ++i) {
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uint32_t c_vn = lookup_or_add(C->getOperand(i));
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uint32_t cd_vn = lookup_or_add(local_cdep->getOperand(i));
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if (c_vn != cd_vn) {
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valueNumbering[C] = nextValueNumber;
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return nextValueNumber++;
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}
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}
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uint32_t v = lookup_or_add(local_cdep);
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valueNumbering[C] = v;
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return v;
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}
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// Non-local case.
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const MemoryDependenceAnalysis::NonLocalDepInfo &deps =
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MD->getNonLocalCallDependency(CallSite(C));
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// FIXME: call/call dependencies for readonly calls should return def, not
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// clobber! Move the checking logic to MemDep!
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CallInst* cdep = 0;
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// Check to see if we have a single dominating call instruction that is
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// identical to C.
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for (unsigned i = 0, e = deps.size(); i != e; ++i) {
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const MemoryDependenceAnalysis::NonLocalDepEntry *I = &deps[i];
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// Ignore non-local dependencies.
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if (I->second.isNonLocal())
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continue;
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// We don't handle non-depedencies. If we already have a call, reject
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// instruction dependencies.
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if (I->second.isClobber() || cdep != 0) {
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cdep = 0;
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break;
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}
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CallInst *NonLocalDepCall = dyn_cast<CallInst>(I->second.getInst());
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// FIXME: All duplicated with non-local case.
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if (NonLocalDepCall && DT->properlyDominates(I->first, C->getParent())){
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cdep = NonLocalDepCall;
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continue;
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}
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cdep = 0;
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break;
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}
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if (!cdep) {
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valueNumbering[C] = nextValueNumber;
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return nextValueNumber++;
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}
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if (cdep->getNumOperands() != C->getNumOperands()) {
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valueNumbering[C] = nextValueNumber;
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return nextValueNumber++;
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}
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for (unsigned i = 1; i < C->getNumOperands(); ++i) {
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uint32_t c_vn = lookup_or_add(C->getOperand(i));
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uint32_t cd_vn = lookup_or_add(cdep->getOperand(i));
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if (c_vn != cd_vn) {
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valueNumbering[C] = nextValueNumber;
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return nextValueNumber++;
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}
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}
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uint32_t v = lookup_or_add(cdep);
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valueNumbering[C] = v;
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return v;
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} else {
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valueNumbering[C] = nextValueNumber;
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return nextValueNumber++;
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}
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}
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/// lookup_or_add - Returns the value number for the specified value, assigning
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/// it a new number if it did not have one before.
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uint32_t ValueTable::lookup_or_add(Value *V) {
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@ -427,162 +541,84 @@ uint32_t ValueTable::lookup_or_add(Value *V) {
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if (VI != valueNumbering.end())
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return VI->second;
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if (CallInst* C = dyn_cast<CallInst>(V)) {
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if (AA->doesNotAccessMemory(C)) {
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Expression exp = create_expression(C);
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uint32_t& e = expressionNumbering[exp];
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if (!e) e = nextValueNumber++;
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valueNumbering[V] = e;
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return e;
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} else if (AA->onlyReadsMemory(C)) {
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Expression exp = create_expression(C);
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uint32_t& e = expressionNumbering[exp];
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if (!e) {
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e = nextValueNumber++;
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valueNumbering[V] = e;
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return e;
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}
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MemDepResult local_dep = MD->getDependency(C);
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if (!local_dep.isDef() && !local_dep.isNonLocal()) {
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valueNumbering[V] = nextValueNumber;
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return nextValueNumber++;
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}
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if (local_dep.isDef()) {
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CallInst* local_cdep = cast<CallInst>(local_dep.getInst());
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if (local_cdep->getNumOperands() != C->getNumOperands()) {
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valueNumbering[V] = nextValueNumber;
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return nextValueNumber++;
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}
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for (unsigned i = 1; i < C->getNumOperands(); ++i) {
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uint32_t c_vn = lookup_or_add(C->getOperand(i));
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uint32_t cd_vn = lookup_or_add(local_cdep->getOperand(i));
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if (c_vn != cd_vn) {
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valueNumbering[V] = nextValueNumber;
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return nextValueNumber++;
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}
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}
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uint32_t v = lookup_or_add(local_cdep);
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valueNumbering[V] = v;
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return v;
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}
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// Non-local case.
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const MemoryDependenceAnalysis::NonLocalDepInfo &deps =
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MD->getNonLocalCallDependency(CallSite(C));
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// FIXME: call/call dependencies for readonly calls should return def, not
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// clobber! Move the checking logic to MemDep!
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CallInst* cdep = 0;
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// Check to see if we have a single dominating call instruction that is
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// identical to C.
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for (unsigned i = 0, e = deps.size(); i != e; ++i) {
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const MemoryDependenceAnalysis::NonLocalDepEntry *I = &deps[i];
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// Ignore non-local dependencies.
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if (I->second.isNonLocal())
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continue;
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// We don't handle non-depedencies. If we already have a call, reject
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// instruction dependencies.
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if (I->second.isClobber() || cdep != 0) {
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cdep = 0;
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break;
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}
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CallInst *NonLocalDepCall = dyn_cast<CallInst>(I->second.getInst());
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// FIXME: All duplicated with non-local case.
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if (NonLocalDepCall && DT->properlyDominates(I->first, C->getParent())){
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cdep = NonLocalDepCall;
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continue;
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}
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cdep = 0;
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break;
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}
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if (!cdep) {
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valueNumbering[V] = nextValueNumber;
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return nextValueNumber++;
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}
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if (cdep->getNumOperands() != C->getNumOperands()) {
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valueNumbering[V] = nextValueNumber;
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return nextValueNumber++;
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}
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for (unsigned i = 1; i < C->getNumOperands(); ++i) {
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uint32_t c_vn = lookup_or_add(C->getOperand(i));
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uint32_t cd_vn = lookup_or_add(cdep->getOperand(i));
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if (c_vn != cd_vn) {
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valueNumbering[V] = nextValueNumber;
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return nextValueNumber++;
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}
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}
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uint32_t v = lookup_or_add(cdep);
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valueNumbering[V] = v;
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return v;
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} else {
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valueNumbering[V] = nextValueNumber;
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return nextValueNumber++;
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}
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} else if (BinaryOperator* BO = dyn_cast<BinaryOperator>(V)) {
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Expression exp = create_expression(BO);
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uint32_t& e = expressionNumbering[exp];
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if (!e) e = nextValueNumber++;
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valueNumbering[V] = e;
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return e;
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} else if (CmpInst* C = dyn_cast<CmpInst>(V)) {
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Expression exp = create_expression(C);
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uint32_t& e = expressionNumbering[exp];
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if (!e) e = nextValueNumber++;
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valueNumbering[V] = e;
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return e;
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} else if (ShuffleVectorInst* U = dyn_cast<ShuffleVectorInst>(V)) {
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Expression exp = create_expression(U);
|
||||
uint32_t& e = expressionNumbering[exp];
|
||||
if (!e) e = nextValueNumber++;
|
||||
valueNumbering[V] = e;
|
||||
return e;
|
||||
} else if (ExtractElementInst* U = dyn_cast<ExtractElementInst>(V)) {
|
||||
Expression exp = create_expression(U);
|
||||
uint32_t& e = expressionNumbering[exp];
|
||||
if (!e) e = nextValueNumber++;
|
||||
valueNumbering[V] = e;
|
||||
return e;
|
||||
} else if (InsertElementInst* U = dyn_cast<InsertElementInst>(V)) {
|
||||
Expression exp = create_expression(U);
|
||||
uint32_t& e = expressionNumbering[exp];
|
||||
if (!e) e = nextValueNumber++;
|
||||
valueNumbering[V] = e;
|
||||
return e;
|
||||
} else if (SelectInst* U = dyn_cast<SelectInst>(V)) {
|
||||
Expression exp = create_expression(U);
|
||||
uint32_t& e = expressionNumbering[exp];
|
||||
if (!e) e = nextValueNumber++;
|
||||
valueNumbering[V] = e;
|
||||
return e;
|
||||
} else if (CastInst* U = dyn_cast<CastInst>(V)) {
|
||||
Expression exp = create_expression(U);
|
||||
uint32_t& e = expressionNumbering[exp];
|
||||
if (!e) e = nextValueNumber++;
|
||||
valueNumbering[V] = e;
|
||||
return e;
|
||||
} else if (GetElementPtrInst* U = dyn_cast<GetElementPtrInst>(V)) {
|
||||
Expression exp = create_expression(U);
|
||||
uint32_t& e = expressionNumbering[exp];
|
||||
if (!e) e = nextValueNumber++;
|
||||
valueNumbering[V] = e;
|
||||
return e;
|
||||
} else {
|
||||
if (!isa<Instruction>(V)) {
|
||||
valueNumbering[V] = nextValueNumber;
|
||||
return nextValueNumber++;
|
||||
}
|
||||
|
||||
Instruction* I = cast<Instruction>(V);
|
||||
Expression exp;
|
||||
switch (I->getOpcode()) {
|
||||
case Instruction::Call:
|
||||
return lookup_or_add_call(cast<CallInst>(I));
|
||||
case Instruction::Add:
|
||||
case Instruction::FAdd:
|
||||
case Instruction::Sub:
|
||||
case Instruction::FSub:
|
||||
case Instruction::Mul:
|
||||
case Instruction::FMul:
|
||||
case Instruction::UDiv:
|
||||
case Instruction::SDiv:
|
||||
case Instruction::FDiv:
|
||||
case Instruction::URem:
|
||||
case Instruction::SRem:
|
||||
case Instruction::FRem:
|
||||
case Instruction::Shl:
|
||||
case Instruction::LShr:
|
||||
case Instruction::AShr:
|
||||
case Instruction::And:
|
||||
case Instruction::Or :
|
||||
case Instruction::Xor:
|
||||
exp = create_expression(cast<BinaryOperator>(I));
|
||||
break;
|
||||
case Instruction::ICmp:
|
||||
case Instruction::FCmp:
|
||||
exp = create_expression(cast<CmpInst>(I));
|
||||
break;
|
||||
case Instruction::Trunc:
|
||||
case Instruction::ZExt:
|
||||
case Instruction::SExt:
|
||||
case Instruction::FPToUI:
|
||||
case Instruction::FPToSI:
|
||||
case Instruction::UIToFP:
|
||||
case Instruction::SIToFP:
|
||||
case Instruction::FPTrunc:
|
||||
case Instruction::FPExt:
|
||||
case Instruction::PtrToInt:
|
||||
case Instruction::IntToPtr:
|
||||
case Instruction::BitCast:
|
||||
exp = create_expression(cast<CastInst>(I));
|
||||
break;
|
||||
case Instruction::Select:
|
||||
exp = create_expression(cast<SelectInst>(I));
|
||||
break;
|
||||
case Instruction::ExtractElement:
|
||||
exp = create_expression(cast<ExtractElementInst>(I));
|
||||
break;
|
||||
case Instruction::InsertElement:
|
||||
exp = create_expression(cast<InsertElementInst>(I));
|
||||
break;
|
||||
case Instruction::ShuffleVector:
|
||||
exp = create_expression(cast<ShuffleVectorInst>(I));
|
||||
break;
|
||||
case Instruction::ExtractValue:
|
||||
exp = create_expression(cast<ExtractValueInst>(I));
|
||||
break;
|
||||
case Instruction::InsertValue:
|
||||
exp = create_expression(cast<InsertValueInst>(I));
|
||||
break;
|
||||
case Instruction::GetElementPtr:
|
||||
exp = create_expression(cast<GetElementPtrInst>(I));
|
||||
break;
|
||||
default:
|
||||
valueNumbering[V] = nextValueNumber;
|
||||
return nextValueNumber++;
|
||||
}
|
||||
|
||||
uint32_t& e = expressionNumbering[exp];
|
||||
if (!e) e = nextValueNumber++;
|
||||
valueNumbering[V] = e;
|
||||
return e;
|
||||
}
|
||||
|
||||
/// lookup - Returns the value number of the specified value. Fails if
|
||||
|
||||
Loading…
Reference in New Issue
Block a user