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* Clean up InstrForest

Browse Source 
* Fix ins sel problem, test case:
void "foo" (int *%x, int *%y)

begin
        seteq int *%x, %y
        ret void
end

llvm-svn: 552
This commit is contained in:
Chris Lattner 2001-09-12 01:28:49 +00:00
parent 8cbda4e314
commit 6ff8e8edce
4 changed files with 210 additions and 306 deletions
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100
include/llvm/CodeGen/InstrForest.h
View File

@ -128,9 +128,12 @@ protected:
Value* val;
public:
/*ctor*/ InstrTreeNode (InstrTreeNodeType nodeType,
Value* _val);
/*dtor*/ virtual ~InstrTreeNode () {}
InstrTreeNode(InstrTreeNodeType nodeType, Value* _val)
: treeNodeType(nodeType), val(_val) {
LeftChild = RightChild = Parent = 0;
opLabel = InvalidOp;
}
virtual ~InstrTreeNode() {}
InstrTreeNodeType getNodeType () const { return treeNodeType; }
@ -138,7 +141,7 @@ public:
inline OpLabel getOpLabel () const { return opLabel; }
inline InstrTreeNode* leftChild () const {
inline InstrTreeNode* leftChild() const {
return LeftChild;
}
@ -153,59 +156,69 @@ public:
return Parent;
}
void dump (int dumpChildren,
int indent) const;
void dump(int dumpChildren, int indent) const;
protected:
virtual void dumpNode (int indent) const = 0;
virtual void dumpNode(int indent) const = 0;
friend class InstrForest;
};
class InstructionNode: public InstrTreeNode {
class InstructionNode : public InstrTreeNode {
public:
/*ctor*/ InstructionNode (Instruction* _instr);
Instruction* getInstruction () const {
InstructionNode(Instruction *_instr);
Instruction *getInstruction() const {
assert(treeNodeType == NTInstructionNode);
return (Instruction*) val;
return (Instruction*)val;
}
protected:
virtual void dumpNode (int indent) const;
virtual void dumpNode(int indent) const;
};
class VRegListNode: public InstrTreeNode {
class VRegListNode : public InstrTreeNode {
public:
/*ctor*/ VRegListNode ();
VRegListNode() : InstrTreeNode(NTVRegListNode, 0) {
opLabel = VRegListOp;
}
protected:
virtual void dumpNode (int indent) const;
virtual void dumpNode(int indent) const;
};
class VRegNode: public InstrTreeNode {
class VRegNode : public InstrTreeNode {
public:
/*ctor*/ VRegNode (Value* _val);
VRegNode(Value* _val) : InstrTreeNode(NTVRegNode, _val) {
opLabel = VRegNodeOp;
}
protected:
virtual void dumpNode (int indent) const;
virtual void dumpNode(int indent) const;
};
class ConstantNode: public InstrTreeNode {
class ConstantNode : public InstrTreeNode {
public:
/*ctor*/ ConstantNode (ConstPoolVal* constVal);
ConstPoolVal* getConstVal () const { return (ConstPoolVal*) val;}
ConstantNode(ConstPoolVal *constVal)
: InstrTreeNode(NTConstNode, (Value*)constVal) {
opLabel = ConstantNodeOp;
}
ConstPoolVal *getConstVal() const { return (ConstPoolVal*) val;}
protected:
virtual void dumpNode ( int indent) const;
virtual void dumpNode(int indent) const;
};
class LabelNode: public InstrTreeNode {
class LabelNode : public InstrTreeNode {
public:
/*ctor*/ LabelNode (BasicBlock* _bblock);
BasicBlock* getBasicBlock () const { return (BasicBlock*) val;}
LabelNode(BasicBlock* BB) : InstrTreeNode(NTLabelNode, (Value*)BB) {
opLabel = LabelNodeOp;
}
BasicBlock *getBasicBlock() const { return (BasicBlock*)val;}
protected:
virtual void dumpNode (int indent) const;
virtual void dumpNode(int indent) const;
};
@ -221,22 +234,13 @@ protected:
//
//------------------------------------------------------------------------
class InstrForest :
public NonCopyable,
private hash_map<const Instruction*, InstructionNode*> {
private:
class InstrForest : private hash_map<const Instruction*, InstructionNode*> {
hash_set<InstructionNode*> treeRoots;
public:
/*ctor*/ InstrForest () {}
/*dtor*/ ~InstrForest () {}
void buildTreesForMethod (Method *method);
void buildTreesForMethod(Method *M);
inline InstructionNode*
getTreeNodeForInstr(Instruction* instr)
{
inline InstructionNode *getTreeNodeForInstr(Instruction* instr) {
return (*this)[instr];
}
@ -244,28 +248,18 @@ public:
return treeRoots;
}
void dump () const;
void dump() const;
private:
//
// Private methods for buidling the instruction forest
//
void setLeftChild (InstrTreeNode* parent,
InstrTreeNode* child);
void setRightChild (InstrTreeNode* parent,
InstrTreeNode* child);
void setParent (InstrTreeNode* child,
InstrTreeNode* parent);
void noteTreeNodeForInstr (Instruction* instr,
InstructionNode* treeNode);
void setLeftChild (InstrTreeNode* parent, InstrTreeNode* child);
void setRightChild(InstrTreeNode* parent, InstrTreeNode* child);
void setParent (InstrTreeNode* child, InstrTreeNode* parent);
void noteTreeNodeForInstr(Instruction* instr, InstructionNode* treeNode);
InstructionNode* buildTreeForInstruction(Instruction* instr);
};
/***************************************************************************/
#endif

400
lib/CodeGen/InstrSelection/InstrForest.cpp
View File

@ -22,8 +22,6 @@
//
//---------------------------------------------------------------------------
//*************************** User Include Files ***************************/
#include "llvm/CodeGen/InstrForest.h"
#include "llvm/Method.h"
#include "llvm/iTerminators.h"
@ -31,123 +29,87 @@
#include "llvm/ConstPoolVals.h"
#include "llvm/BasicBlock.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/Support/STLExtras.h"
//------------------------------------------------------------------------
// class InstrTreeNode
//------------------------------------------------------------------------
InstrTreeNode::InstrTreeNode(InstrTreeNodeType nodeType, Value* _val)
: treeNodeType(nodeType), val(_val) {
LeftChild = 0;
RightChild = 0;
Parent = 0;
opLabel = InvalidOp;
}
void InstrTreeNode::dump(int dumpChildren, int indent) const {
dumpNode(indent);
if (dumpChildren)
{
if (leftChild())
leftChild()->dump(dumpChildren, indent+1);
if (rightChild())
rightChild()->dump(dumpChildren, indent+1);
}
if (dumpChildren) {
if (leftChild())
leftChild()->dump(dumpChildren, indent+1);
if (rightChild())
rightChild()->dump(dumpChildren, indent+1);
}
}
InstructionNode::InstructionNode(Instruction* _instr)
: InstrTreeNode(NTInstructionNode, _instr)
{
OpLabel opLabel = _instr->getOpcode();
InstructionNode::InstructionNode(Instruction* I)
: InstrTreeNode(NTInstructionNode, I) {
opLabel = I->getOpcode();
// Distinguish special cases of some instructions such as Ret and Br
//
if (opLabel == Instruction::Ret && ((ReturnInst*) _instr)->getReturnValue())
{
opLabel = RetValueOp; // ret(value) operation
if (opLabel == Instruction::Ret && ((ReturnInst*)I)->getReturnValue()) {
opLabel = RetValueOp; // ret(value) operation
} else if (opLabel == Instruction::Br &&
!((BranchInst*)I)->isUnconditional()) {
opLabel = BrCondOp; // br(cond) operation
} else if (opLabel >= Instruction::SetEQ && opLabel <= Instruction::SetGT) {
opLabel = SetCCOp; // common label for all SetCC ops
} else if (opLabel == Instruction::Alloca && I->getNumOperands() > 0) {
opLabel = AllocaN; // Alloca(ptr, N) operation
} else if ((opLabel == Instruction::Load ||
opLabel == Instruction::GetElementPtr) &&
((MemAccessInst*)I)->getFirstOffsetIdx() > 0) {
opLabel = opLabel + 100; // load/getElem with index vector
} else if (opLabel == Instruction::Cast) {
const Type *ITy = I->getType();
switch(ITy->getPrimitiveID()) {
case Type::BoolTyID: opLabel = ToBoolTy; break;
case Type::UByteTyID: opLabel = ToUByteTy; break;
case Type::SByteTyID: opLabel = ToSByteTy; break;
case Type::UShortTyID: opLabel = ToUShortTy; break;
case Type::ShortTyID: opLabel = ToShortTy; break;
case Type::UIntTyID: opLabel = ToUIntTy; break;
case Type::IntTyID: opLabel = ToIntTy; break;
case Type::ULongTyID: opLabel = ToULongTy; break;
case Type::LongTyID: opLabel = ToLongTy; break;
case Type::FloatTyID: opLabel = ToFloatTy; break;
case Type::DoubleTyID: opLabel = ToDoubleTy; break;
case Type::ArrayTyID: opLabel = ToArrayTy; break;
case Type::PointerTyID: opLabel = ToPointerTy; break;
default:
// Just use `Cast' opcode otherwise. It's probably ignored.
break;
}
else if (opLabel == Instruction::Br && ! ((BranchInst*) _instr)->isUnconditional())
{
opLabel = BrCondOp; // br(cond) operation
}
else if (opLabel >= Instruction::SetEQ && opLabel <= Instruction::SetGT)
{
opLabel = SetCCOp; // common label for all SetCC ops
}
else if (opLabel == Instruction::Alloca && _instr->getNumOperands() > 0)
{
opLabel = AllocaN; // Alloca(ptr, N) operation
}
else if ((opLabel == Instruction::Load ||
opLabel == Instruction::GetElementPtr)
&& ((MemAccessInst*)_instr)->getFirstOffsetIdx() > 0)
{
opLabel = opLabel + 100; // load/getElem with index vector
}
else if (opLabel == Instruction::Cast)
{
const Type* instrValueType = _instr->getType();
switch(instrValueType->getPrimitiveID())
{
case Type::BoolTyID: opLabel = ToBoolTy; break;
case Type::UByteTyID: opLabel = ToUByteTy; break;
case Type::SByteTyID: opLabel = ToSByteTy; break;
case Type::UShortTyID: opLabel = ToUShortTy; break;
case Type::ShortTyID: opLabel = ToShortTy; break;
case Type::UIntTyID: opLabel = ToUIntTy; break;
case Type::IntTyID: opLabel = ToIntTy; break;
case Type::ULongTyID: opLabel = ToULongTy; break;
case Type::LongTyID: opLabel = ToLongTy; break;
case Type::FloatTyID: opLabel = ToFloatTy; break;
case Type::DoubleTyID: opLabel = ToDoubleTy; break;
default:
if (instrValueType->isArrayType())
opLabel = ToArrayTy;
else if (instrValueType->isPointerType())
opLabel = ToPointerTy;
else
; // Just use `Cast' opcode otherwise. It's probably ignored.
break;
}
}
this->opLabel = opLabel;
}
}
void
InstructionNode::dumpNode(int indent) const
{
void InstructionNode::dumpNode(int indent) const {
for (int i=0; i < indent; i++)
cout << " ";
cout << getInstruction()->getOpcodeName();
const vector<MachineInstr*>& mvec = getInstruction()->getMachineInstrVec();
const vector<MachineInstr*> &mvec = getInstruction()->getMachineInstrVec();
if (mvec.size() > 0)
cout << "\tMachine Instructions: ";
for (unsigned int i=0; i < mvec.size(); i++)
{
mvec[i]->dump(0);
if (i < mvec.size() - 1)
cout << "; ";
}
for (unsigned int i=0; i < mvec.size(); i++) {
mvec[i]->dump(0);
if (i < mvec.size() - 1)
cout << "; ";
}
cout << endl;
}
VRegListNode::VRegListNode() : InstrTreeNode(NTVRegListNode, 0) {
opLabel = VRegListOp;
}
void
VRegListNode::dumpNode(int indent) const
{
void VRegListNode::dumpNode(int indent) const {
for (int i=0; i < indent; i++)
cout << " ";
@ -155,13 +117,7 @@ VRegListNode::dumpNode(int indent) const
}
VRegNode::VRegNode(Value* _val) : InstrTreeNode(NTVRegNode, _val) {
opLabel = VRegNodeOp;
}
void
VRegNode::dumpNode(int indent) const
{
void VRegNode::dumpNode(int indent) const {
for (int i=0; i < indent; i++)
cout << " ";
@ -169,15 +125,7 @@ VRegNode::dumpNode(int indent) const
<< (int) getValue()->getValueType() << ")" << endl;
}
ConstantNode::ConstantNode(ConstPoolVal *constVal)
: InstrTreeNode(NTConstNode, constVal) {
opLabel = ConstantNodeOp;
}
void
ConstantNode::dumpNode(int indent) const
{
void ConstantNode::dumpNode(int indent) const {
for (int i=0; i < indent; i++)
cout << " ";
@ -185,14 +133,7 @@ ConstantNode::dumpNode(int indent) const
<< (int) getValue()->getValueType() << ")" << endl;
}
LabelNode::LabelNode(BasicBlock *BB) : InstrTreeNode(NTLabelNode, BB) {
opLabel = LabelNodeOp;
}
void
LabelNode::dumpNode(int indent) const
{
void LabelNode::dumpNode(int indent) const {
for (int i=0; i < indent; i++)
cout << " ";
@ -205,74 +146,53 @@ LabelNode::dumpNode(int indent) const
// A forest of instruction trees, usually for a single method.
//------------------------------------------------------------------------
void
InstrForest::buildTreesForMethod(Method *method)
{
for (Method::inst_iterator instrIter = method->inst_begin();
instrIter != method->inst_end();
++instrIter)
{
Instruction *instr = *instrIter;
(void) this->buildTreeForInstruction(instr);
}
void InstrForest::dump() const {
for (hash_set<InstructionNode*>::const_iterator I = treeRoots.begin();
I != treeRoots.end(); ++I)
(*I)->dump(/*dumpChildren*/ 1, /*indent*/ 0);
}
void
InstrForest::dump() const
{
for (hash_set<InstructionNode*>::const_iterator
treeRootIter = treeRoots.begin();
treeRootIter != treeRoots.end();
++treeRootIter)
{
(*treeRootIter)->dump(/*dumpChildren*/ 1, /*indent*/ 0);
}
}
inline void
InstrForest::noteTreeNodeForInstr(Instruction* instr,
InstructionNode* treeNode)
{
inline void InstrForest::noteTreeNodeForInstr(Instruction *instr,
InstructionNode *treeNode) {
assert(treeNode->getNodeType() == InstrTreeNode::NTInstructionNode);
(*this)[instr] = treeNode;
treeRoots.insert(treeNode); // mark node as root of a new tree
}
inline void
InstrForest::setLeftChild(InstrTreeNode* parent, InstrTreeNode* child) {
parent->LeftChild = child;
child->Parent = parent;
if (child->getNodeType() == InstrTreeNode::NTInstructionNode)
treeRoots.erase((InstructionNode*) child); // no longer a tree root
inline void InstrForest::setLeftChild(InstrTreeNode *Par, InstrTreeNode *Chld) {
Par->LeftChild = Chld;
Chld->Parent = Par;
if (Chld->getNodeType() == InstrTreeNode::NTInstructionNode)
treeRoots.erase((InstructionNode*)Chld); // no longer a tree root
}
inline void
InstrForest::setRightChild(InstrTreeNode* parent, InstrTreeNode* child)
{
parent->RightChild = child;
child->Parent = parent;
if (child->getNodeType() == InstrTreeNode::NTInstructionNode)
treeRoots.erase((InstructionNode*) child); // no longer a tree root
inline void InstrForest::setRightChild(InstrTreeNode *Par, InstrTreeNode *Chld){
Par->RightChild = Chld;
Chld->Parent = Par;
if (Chld->getNodeType() == InstrTreeNode::NTInstructionNode)
treeRoots.erase((InstructionNode*)Chld); // no longer a tree root
}
InstructionNode*
InstrForest::buildTreeForInstruction(Instruction* instr)
{
InstructionNode* treeNode = this->getTreeNodeForInstr(instr);
if (treeNode != NULL)
{// treeNode has already been constructed for this instruction
assert(treeNode->getInstruction() == instr);
return treeNode;
}
void InstrForest::buildTreesForMethod(Method *M) {
for_each(M->inst_begin(), M->inst_end(),
bind_obj(this, &InstrForest::buildTreeForInstruction));
}
InstructionNode *InstrForest::buildTreeForInstruction(Instruction *Inst) {
InstructionNode *treeNode = getTreeNodeForInstr(Inst);
if (treeNode) {
// treeNode has already been constructed for this instruction
assert(treeNode->getInstruction() == Inst);
return treeNode;
}
// Otherwise, create a new tree node for this instruction.
//
treeNode = new InstructionNode(instr);
this->noteTreeNodeForInstr(instr, treeNode);
treeNode = new InstructionNode(Inst);
noteTreeNodeForInstr(Inst, treeNode);
// If the instruction has more than 2 instruction operands,
// then we need to create artificial list nodes to hold them.
@ -287,67 +207,60 @@ InstrForest::buildTreeForInstruction(Instruction* instr)
//
int numChildren = 0;
const unsigned int MAX_CHILD = 8;
static InstrTreeNode* fixedChildArray[MAX_CHILD];
InstrTreeNode** childArray =
(instr->getNumOperands() > MAX_CHILD)
? new (InstrTreeNode*)[instr->getNumOperands()]
static InstrTreeNode *fixedChildArray[MAX_CHILD];
InstrTreeNode **childArray =
(Inst->getNumOperands() > MAX_CHILD)
? new (InstrTreeNode*)[Inst->getNumOperands()]
: fixedChildArray;
//
// Walk the operands of the instruction
//
for (Instruction::op_iterator O=instr->op_begin(); O != instr->op_end(); ++O)
{
Value* operand = *O;
for (Instruction::op_iterator O = Inst->op_begin(); O != Inst->op_end(); ++O){
Value* operand = *O;
// Check if the operand is a data value, not an branch label, type,
// method or module. If the operand is an address type (i.e., label
// or method) that is used in an non-branching operation, e.g., `add'.
// that should be considered a data value.
// Check latter condition here just to simplify the next IF.
bool includeAddressOperand =
((operand->isBasicBlock() || operand->isMethod())
&& !instr->isTerminator());
if (includeAddressOperand || operand->isInstruction() ||
operand->isConstant() || operand->isMethodArgument())
{// This operand is a data value
// An instruction that computes the incoming value is added as a
// child of the current instruction if:
// the value has only a single use
// AND both instructions are in the same basic block.
//
// (Note that if the value has only a single use (viz., `instr'),
// the def of the value can be safely moved just before instr
// and therefore it is safe to combine these two instructions.)
//
// In all other cases, the virtual register holding the value
// is used directly, i.e., made a child of the instruction node.
//
InstrTreeNode* opTreeNode;
if (operand->isInstruction() && operand->use_size() == 1 &&
((Instruction*)operand)->getParent() == instr->getParent())
{
// Recursively create a treeNode for it.
opTreeNode =this->buildTreeForInstruction((Instruction*)operand);
}
else if (ConstPoolVal *CPV = operand->castConstant())
{
// Create a leaf node for a constant
opTreeNode = new ConstantNode(CPV);
}
else
{
// Create a leaf node for the virtual register
opTreeNode = new VRegNode(operand);
}
childArray[numChildren] = opTreeNode;
numChildren++;
}
// Check if the operand is a data value, not an branch label, type,
// method or module. If the operand is an address type (i.e., label
// or method) that is used in an non-branching operation, e.g., `add'.
// that should be considered a data value.
// Check latter condition here just to simplify the next IF.
bool includeAddressOperand =
(operand->isBasicBlock() || operand->isMethod())
&& !Inst->isTerminator();
if (includeAddressOperand || operand->isInstruction() ||
operand->isConstant() || operand->isMethodArgument()) {
// This operand is a data value
// An instruction that computes the incoming value is added as a
// child of the current instruction if:
// the value has only a single use
// AND both instructions are in the same basic block.
//
// (Note that if the value has only a single use (viz., `instr'),
// the def of the value can be safely moved just before instr
// and therefore it is safe to combine these two instructions.)
//
// In all other cases, the virtual register holding the value
// is used directly, i.e., made a child of the instruction node.
//
InstrTreeNode* opTreeNode;
if (operand->isInstruction() && operand->use_size() == 1 &&
((Instruction*)operand)->getParent() == Inst->getParent()) {
// Recursively create a treeNode for it.
opTreeNode = buildTreeForInstruction((Instruction*)operand);
} else if (ConstPoolVal *CPV = operand->castConstant()) {
// Create a leaf node for a constant
opTreeNode = new ConstantNode(CPV);
} else {
// Create a leaf node for the virtual register
opTreeNode = new VRegNode(operand);
}
childArray[numChildren++] = opTreeNode;
}
}
//--------------------------------------------------------------------
// Add any selected operands as children in the tree.
@ -358,43 +271,40 @@ InstrForest::buildTreeForInstruction(Instruction* instr)
// and VRegList nodes as internal nodes.
//--------------------------------------------------------------------
InstrTreeNode* parent = treeNode; // new VRegListNode();
int n;
InstrTreeNode *parent = treeNode;
if (numChildren > 2)
{
unsigned instrOpcode = treeNode->getInstruction()->getOpcode();
assert(instrOpcode == Instruction::PHINode ||
instrOpcode == Instruction::Call ||
instrOpcode == Instruction::Load ||
instrOpcode == Instruction::Store ||
instrOpcode == Instruction::GetElementPtr);
}
if (numChildren > 2) {
unsigned instrOpcode = treeNode->getInstruction()->getOpcode();
assert(instrOpcode == Instruction::PHINode ||
instrOpcode == Instruction::Call ||
instrOpcode == Instruction::Load ||
instrOpcode == Instruction::Store ||
instrOpcode == Instruction::GetElementPtr);
}
// Insert the first child as a direct child
if (numChildren >= 1)
this->setLeftChild(parent, childArray[0]);
setLeftChild(parent, childArray[0]);
int n;
// Create a list node for children 2 .. N-1, if any
for (n = numChildren-1; n >= 2; n--)
{ // We have more than two children
InstrTreeNode* listNode = new VRegListNode();
this->setRightChild(parent, listNode);
this->setLeftChild(listNode, childArray[numChildren - n]);
parent = listNode;
}
for (n = numChildren-1; n >= 2; n--) {
// We have more than two children
InstrTreeNode *listNode = new VRegListNode();
setRightChild(parent, listNode);
setLeftChild(listNode, childArray[numChildren - n]);
parent = listNode;
}
// Now insert the last remaining child (if any).
if (numChildren >= 2)
{
assert(n == 1);
this->setRightChild(parent, childArray[numChildren - 1]);
}
if (numChildren >= 2) {
assert(n == 1);
setRightChild(parent, childArray[numChildren - 1]);
}
if (childArray != fixedChildArray)
{
delete[] childArray;
}
delete [] childArray;
return treeNode;
}

14
lib/CodeGen/TargetMachine/Sparc/SparcInstrSelection.cpp
View File

@ -540,12 +540,11 @@ ChooseFcmpInstruction(const InstructionNode* instrNode)
MachineOpCode opCode = INVALID_OPCODE;
Value* operand = ((InstrTreeNode*) instrNode->leftChild())->getValue();
switch(operand->getType()->getPrimitiveID())
{
case Type::FloatTyID: opCode = FCMPS; break;
case Type::DoubleTyID: opCode = FCMPD; break;
default: assert(0 && "Invalid type for FCMP instruction"); break;
}
switch(operand->getType()->getPrimitiveID()) {
case Type::FloatTyID: opCode = FCMPS; break;
case Type::DoubleTyID: opCode = FCMPD; break;
default: assert(0 && "Invalid type for FCMP instruction"); break;
}
return opCode;
}
@ -1700,7 +1699,8 @@ GetInstructionsByRule(InstructionNode* subtreeRoot,
int valueToMove;
MachineOpCode movOpCode;
if (subtreeRoot->leftChild()->getValue()->getType()->isIntegral())
if (subtreeRoot->leftChild()->getValue()->getType()->isIntegral() ||
subtreeRoot->leftChild()->getValue()->getType()->isPointerType())
{
// integer condition: destination should be %g0 or integer register
// if result must be saved but condition is not SetEQ then we need

2
test/Makefile
View File

@ -4,7 +4,7 @@ LLCOPTS := -dsched t
TESTS := $(wildcard *.ll)
LLCTESTS := $(shell /bin/ls *.ll | grep -v testmemory | grep -v testswitch | grep -v sumarray)
LLCTESTS := $(shell /bin/ls *.ll | grep -v testmemory | grep -v testswitch | grep -v sumarray | grep -v globalvars)
test all : testasmdis testopt testcodegen