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omegatools.cc
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/*****************************************************************************
Copyright (C) 2008 University of Southern California
Copyright (C) 2009-2010 University of Utah
All Rights Reserved.
Purpose:
Useful tools involving Omega manipulation.
Notes:
History:
01/2006 Created by Chun Chen.
03/2009 Upgrade Omega's interaction with compiler to IR_Code, by Chun Chen.
*****************************************************************************/
#include <codegen.h>
#include "omegatools.hh"
#include "ir_code.hh"
#include "chill_error.hh"
#include "chill_ast.hh"
#include "code_gen/CG_chillRepr.h"
#include <code_gen/CG_utils.h>
using namespace omega;
namespace {
struct DependenceLevel {
Relation r;
int level;
int dir; // direction upto current level:
// -1:negative, 0: undetermined, 1: postive
std::vector<coef_t> lbounds;
std::vector<coef_t> ubounds;
DependenceLevel(const Relation &_r, int _dims):
r(_r), level(0), dir(0), lbounds(_dims), ubounds(_dims) {}
};
}
std::string tmp_e() {
static int counter = 1;
return std::string("e")+to_string(counter++);
}
//-----------------------------------------------------------------------------
// Convert expression tree to omega relation. "destroy" means shallow
// deallocation of "repr", not freeing the actual code inside.
// -----------------------------------------------------------------------------
void exp2formula(IR_Code *ir,
Relation &r,
F_And *f_root,
std::vector<Free_Var_Decl*> &freevars,
CG_outputRepr *repr,
Variable_ID lhs,
char side,
IR_CONDITION_TYPE rel,
bool destroy,
std::map<std::string, std::vector<omega::CG_outputRepr *> > &uninterpreted_symbols,
std::map<std::string, std::vector<omega::CG_outputRepr *> > &uninterpreted_symbols_stringrepr
) {
debug_fprintf(stderr, "\n*** exp2formula()\n");
//repr->dump(); /* printf("\n"); */fflush(stdout);
debug_fprintf(stderr, "repr "); r.print(); printf("\n"); fflush(stdout);
IR_OPERATION_TYPE optype = ir->QueryExpOperation(repr);
switch (optype) {
case IR_OP_CONSTANT:
{
debug_fprintf(stderr, "IR_OP_CONSTANT\n");
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
IR_ConstantRef *ref = static_cast<IR_ConstantRef *>(ir->Repr2Ref(v[0]));
if (!ref->is_integer())
throw ir_exp_error("non-integer constant coefficient");
coef_t c = ref->integer();
if (rel == IR_COND_GE || rel == IR_COND_GT) {
GEQ_Handle h = f_root->add_GEQ();
h.update_coef(lhs, 1);
if (rel == IR_COND_GE)
h.update_const(-c);
else
h.update_const(-c-1);
}
else if (rel == IR_COND_LE || rel == IR_COND_LT) {
GEQ_Handle h = f_root->add_GEQ();
h.update_coef(lhs, -1);
if (rel == IR_COND_LE)
h.update_const(c);
else
h.update_const(c-1);
}
else if (rel == IR_COND_EQ) {
EQ_Handle h = f_root->add_EQ();
h.update_coef(lhs, 1);
h.update_const(-c);
}
else
throw std::invalid_argument("unsupported condition type");
delete v[0];
delete ref;
if (destroy)
delete repr;
break;
}
case IR_OP_VARIABLE:
{
debug_fprintf(stderr, "IR_OP_VARIABLE\n");
//debug_fprintf(stderr, "repr "); repr->dump(); fflush(stdout);
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
//debug_fprintf(stderr, "v "); v[0]->dump(); fflush(stdout);
IR_ScalarRef *ref = static_cast<IR_ScalarRef *>(ir->Repr2Ref(v[0]));
//debug_fprintf(stderr, "omegatools.cc calling ref->name()\n");
std::string s = ref->name();
Variable_ID e = find_index(r, s, side);
//debug_fprintf(stderr, "s %s\n", s.c_str());
if (e == NULL) { // must be free variable
Free_Var_Decl *t = NULL;
for (unsigned i = 0; i < freevars.size(); i++) {
std::string ss = freevars[i]->base_name();
if (s == ss) {
t = freevars[i];
break;
}
}
if (t == NULL) {
t = new Free_Var_Decl(s);
freevars.insert(freevars.end(), t);
}
e = r.get_local(t);
}
if (rel == IR_COND_GE || rel == IR_COND_GT) {
GEQ_Handle h = f_root->add_GEQ();
h.update_coef(lhs, 1);
h.update_coef(e, -1);
if (rel == IR_COND_GT)
h.update_const(-1);
}
else if (rel == IR_COND_LE || rel == IR_COND_LT) {
GEQ_Handle h = f_root->add_GEQ();
h.update_coef(lhs, -1);
h.update_coef(e, 1);
if (rel == IR_COND_LT)
h.update_const(-1);
}
else if (rel == IR_COND_EQ) {
EQ_Handle h = f_root->add_EQ();
h.update_coef(lhs, 1);
h.update_coef(e, -1);
}
else
throw std::invalid_argument("unsupported condition type");
// delete v[0];
delete ref;
if (destroy)
delete repr;
break;
}
case IR_OP_ASSIGNMENT:
{
debug_fprintf(stderr, "IR_OP_ASSIGNMENT\n");
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
exp2formula(ir, r, f_root, freevars, v[0], lhs, side, rel, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
if (destroy)
delete repr;
break;
}
case IR_OP_PLUS:
{
debug_fprintf(stderr, "IR_OP_PLUS\n");
F_Exists *f_exists = f_root->add_exists();
Variable_ID e1 = f_exists->declare(tmp_e());
Variable_ID e2 = f_exists->declare(tmp_e());
F_And *f_and = f_exists->add_and();
if (rel == IR_COND_GE || rel == IR_COND_GT) {
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, 1);
h.update_coef(e1, -1);
h.update_coef(e2, -1);
if (rel == IR_COND_GT)
h.update_const(-1);
}
else if (rel == IR_COND_LE || rel == IR_COND_LT) {
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, -1);
h.update_coef(e1, 1);
h.update_coef(e2, 1);
if (rel == IR_COND_LT)
h.update_const(-1);
}
else if (rel == IR_COND_EQ) {
EQ_Handle h = f_and->add_EQ();
h.update_coef(lhs, 1);
h.update_coef(e1, -1);
h.update_coef(e2, -1);
}
else
throw std::invalid_argument("unsupported condition type");
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
exp2formula(ir, r, f_and, freevars, v[0], e1, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
exp2formula(ir, r, f_and, freevars, v[1], e2, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
if (destroy)
delete repr;
break;
}
case IR_OP_MINUS:
{
debug_fprintf(stderr, "IR_OP_MINUS\n");
F_Exists *f_exists = f_root->add_exists();
Variable_ID e1 = f_exists->declare(tmp_e());
Variable_ID e2 = f_exists->declare(tmp_e());
F_And *f_and = f_exists->add_and();
if (rel == IR_COND_GE || rel == IR_COND_GT) {
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, 1);
h.update_coef(e1, -1);
h.update_coef(e2, 1);
if (rel == IR_COND_GT)
h.update_const(-1);
}
else if (rel == IR_COND_LE || rel == IR_COND_LT) {
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, -1);
h.update_coef(e1, 1);
h.update_coef(e2, -1);
if (rel == IR_COND_LT)
h.update_const(-1);
}
else if (rel == IR_COND_EQ) {
EQ_Handle h = f_and->add_EQ();
h.update_coef(lhs, 1);
h.update_coef(e1, -1);
h.update_coef(e2, 1);
}
else
throw std::invalid_argument("unsupported condition type");
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
debug_fprintf(stderr, "IR_OP_MINUS v has %d parts\n", (int)v.size());
debug_fprintf(stderr, "IR_OP_MINUS recursing 1\n");
exp2formula(ir, r, f_and, freevars, v[0], e1, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
if (v.size() > 1) {
debug_fprintf(stderr, "IR_OP_MINUS recursing 2\n"); // dies here because it's unary minus?
exp2formula(ir, r, f_and, freevars, v[1], e2, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
}
if (destroy)
delete repr;
break;
}
case IR_OP_MULTIPLY:
{
debug_fprintf(stderr, "IR_OP_MULTIPLY\n");
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
coef_t coef;
CG_outputRepr *term;
if (ir->QueryExpOperation(v[0]) == IR_OP_CONSTANT) {
IR_ConstantRef *ref = static_cast<IR_ConstantRef *>(ir->Repr2Ref(v[0]));
coef = ref->integer();
delete v[0];
delete ref;
term = v[1];
}
else if (ir->QueryExpOperation(v[1]) == IR_OP_CONSTANT) {
IR_ConstantRef *ref = static_cast<IR_ConstantRef *>(ir->Repr2Ref(v[1]));
coef = ref->integer();
delete v[1];
delete ref;
term = v[0];
}
else
throw ir_exp_error("not presburger expression");
F_Exists *f_exists = f_root->add_exists();
Variable_ID e = f_exists->declare(tmp_e());
F_And *f_and = f_exists->add_and();
if (rel == IR_COND_GE || rel == IR_COND_GT) {
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, 1);
h.update_coef(e, -coef);
if (rel == IR_COND_GT)
h.update_const(-1);
}
else if (rel == IR_COND_LE || rel == IR_COND_LT) {
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, -1);
h.update_coef(e, coef);
if (rel == IR_COND_LT)
h.update_const(-1);
}
else if (rel == IR_COND_EQ) {
EQ_Handle h = f_and->add_EQ();
h.update_coef(lhs, 1);
h.update_coef(e, -coef);
}
else
throw std::invalid_argument("unsupported condition type");
exp2formula(ir, r, f_and, freevars, term, e, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
if (destroy)
delete repr;
break;
}
case IR_OP_DIVIDE:
{
debug_fprintf(stderr, "IR_OP_DIVIDE\n");
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
assert(ir->QueryExpOperation(v[1]) == IR_OP_CONSTANT);
IR_ConstantRef *ref = static_cast<IR_ConstantRef *>(ir->Repr2Ref(v[1]));
coef_t coef = ref->integer();
delete v[1];
delete ref;
F_Exists *f_exists = f_root->add_exists();
Variable_ID e = f_exists->declare(tmp_e());
F_And *f_and = f_exists->add_and();
if (rel == IR_COND_GE || rel == IR_COND_GT) {
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, coef);
h.update_coef(e, -1);
if (rel == IR_COND_GT)
h.update_const(-1);
}
else if (rel == IR_COND_LE || rel == IR_COND_LT) {
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, -coef);
h.update_coef(e, 1);
if (rel == IR_COND_LT)
h.update_const(-1);
}
else if (rel == IR_COND_EQ) {
EQ_Handle h = f_and->add_EQ();
h.update_coef(lhs, coef);
h.update_coef(e, -1);
}
else
throw std::invalid_argument("unsupported condition type");
exp2formula(ir, r, f_and, freevars, v[0], e, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
if (destroy)
delete repr;
break;
}
case IR_OP_MOD:
{
debug_fprintf(stderr, "IR_OP_MOD\n");
/* the left hand of a mod can be a var but the right must be a const */
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
assert(ir->QueryExpOperation(v[1]) == IR_OP_CONSTANT);
IR_ConstantRef *ref = static_cast<IR_ConstantRef *>(ir->Repr2Ref(v[1]));
coef_t coef = ref->integer();
delete v[1];
delete ref;
F_Exists *f_exists = f_root->add_exists();
Variable_ID e = f_exists->declare(tmp_e());
Variable_ID b = f_exists->declare(tmp_e());
F_And *f_and = f_exists->add_and();
if (rel == IR_COND_EQ)
{
EQ_Handle h = f_and->add_EQ();
h.update_coef(lhs, 1);
h.update_coef(b, coef);
h.update_coef(e, -1);
}
else if (rel == IR_COND_GE || rel == IR_COND_GT) {
//i = CONST alpha + beta && beta >= const ( handled higher up ) && beta < CONST
EQ_Handle h = f_and->add_EQ();
h.update_coef(lhs, 1);
h.update_coef(b, coef);
h.update_coef(e, -1);
GEQ_Handle k = f_and->add_GEQ();
k.update_coef(lhs, -1 );
k.update_const(coef-1);
}
else if (rel == IR_COND_LE || rel == IR_COND_LT) {
//i = CONST alpha + beta && beta <= const ( handled higher up ) && beta >= 0
EQ_Handle h = f_and->add_EQ();
h.update_coef(lhs, 1);
h.update_coef(b, coef);
h.update_coef(e, -1);
GEQ_Handle k = f_and->add_GEQ();
k.update_coef(lhs, 1 );
}
exp2formula(ir, r, f_and, freevars, v[0], e, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
if (destroy)
delete repr;
break;
}
case IR_OP_POSITIVE:
{
debug_fprintf(stderr, "IR_OP_POSITIVE\n");
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
exp2formula(ir, r, f_root, freevars, v[0], lhs, side, rel, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
if (destroy)
delete repr;
break;
}
case IR_OP_NEGATIVE:
{
debug_fprintf(stderr, "IR_OP_NEGATIVE\n");
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
F_Exists *f_exists = f_root->add_exists();
Variable_ID e = f_exists->declare(tmp_e());
F_And *f_and = f_exists->add_and();
if (rel == IR_COND_GE || rel == IR_COND_GT) {
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, 1);
h.update_coef(e, 1);
if (rel == IR_COND_GT)
h.update_const(-1);
}
else if (rel == IR_COND_LE || rel == IR_COND_LT) {
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, -1);
h.update_coef(e, -1);
if (rel == IR_COND_LT)
h.update_const(-1);
}
else if (rel == IR_COND_EQ) {
EQ_Handle h = f_and->add_EQ();
h.update_coef(lhs, 1);
h.update_coef(e, 1);
}
else
throw std::invalid_argument("unsupported condition type");
exp2formula(ir, r, f_and, freevars, v[0], e, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
if (destroy)
delete repr;
break;
}
case IR_OP_MIN:
{
debug_fprintf(stderr, "IR_OP_MIN\n");
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
F_Exists *f_exists = f_root->add_exists();
if (rel == IR_COND_GE || rel == IR_COND_GT) {
F_Or *f_or = f_exists->add_and()->add_or();
for (int i = 0; i < v.size(); i++) {
Variable_ID e = f_exists->declare(tmp_e());
F_And *f_and = f_or->add_and();
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, 1);
h.update_coef(e, -1);
if (rel == IR_COND_GT)
h.update_const(-1);
exp2formula(ir, r, f_and, freevars, v[i], e, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
}
}
else if (rel == IR_COND_LE || rel == IR_COND_LT) {
F_And *f_and = f_exists->add_and();
for (int i = 0; i < v.size(); i++) {
Variable_ID e = f_exists->declare(tmp_e());
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, -1);
h.update_coef(e, 1);
if (rel == IR_COND_LT)
h.update_const(-1);
exp2formula(ir, r, f_and, freevars, v[i], e, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
}
}
else if (rel == IR_COND_EQ) {
F_Or *f_or = f_exists->add_and()->add_or();
for (int i = 0; i < v.size(); i++) {
Variable_ID e = f_exists->declare(tmp_e());
F_And *f_and = f_or->add_and();
EQ_Handle h = f_and->add_EQ();
h.update_coef(lhs, 1);
h.update_coef(e, -1);
exp2formula(ir, r, f_and, freevars, v[i], e, side, IR_COND_EQ, false,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
for (int j = 0; j < v.size(); j++)
if (j != i) {
Variable_ID e2 = f_exists->declare(tmp_e());
GEQ_Handle h2 = f_and->add_GEQ();
h2.update_coef(e, -1);
h2.update_coef(e2, 1);
exp2formula(ir, r, f_and, freevars, v[j], e2, side,
IR_COND_EQ, false,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
}
}
for (int i = 0; i < v.size(); i++)
delete v[i];
}
else
throw std::invalid_argument("unsupported condition type");
if (destroy)
delete repr;
break;
}
case IR_OP_MAX:
{
debug_fprintf(stderr, "IR_OP_MAX\n");
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
F_Exists *f_exists = f_root->add_exists();
if (rel == IR_COND_LE || rel == IR_COND_LT) {
F_Or *f_or = f_exists->add_and()->add_or();
for (int i = 0; i < v.size(); i++) {
Variable_ID e = f_exists->declare(tmp_e());
F_And *f_and = f_or->add_and();
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, -1);
h.update_coef(e, 1);
if (rel == IR_COND_LT)
h.update_const(-1);
exp2formula(ir, r, f_and, freevars, v[i], e, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
}
}
else if (rel == IR_COND_GE || rel == IR_COND_GT) {
F_And *f_and = f_exists->add_and();
for (int i = 0; i < v.size(); i++) {
Variable_ID e = f_exists->declare(tmp_e());
GEQ_Handle h = f_and->add_GEQ();
h.update_coef(lhs, 1);
h.update_coef(e, -1);
if (rel == IR_COND_GT)
h.update_const(-1);
exp2formula(ir, r, f_and, freevars, v[i], e, side, IR_COND_EQ, true,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
}
}
else if (rel == IR_COND_EQ) {
F_Or *f_or = f_exists->add_and()->add_or();
for (int i = 0; i < v.size(); i++) {
Variable_ID e = f_exists->declare(tmp_e());
F_And *f_and = f_or->add_and();
EQ_Handle h = f_and->add_EQ();
h.update_coef(lhs, 1);
h.update_coef(e, -1);
exp2formula(ir, r, f_and, freevars, v[i], e, side, IR_COND_EQ, false,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
for (int j = 0; j < v.size(); j++)
if (j != i) {
Variable_ID e2 = f_exists->declare(tmp_e());
GEQ_Handle h2 = f_and->add_GEQ();
h2.update_coef(e, 1);
h2.update_coef(e2, -1);
exp2formula(ir, r, f_and, freevars, v[j], e2, side, IR_COND_EQ, false,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
}
}
for (int i = 0; i < v.size(); i++)
delete v[i];
}
else
throw std::invalid_argument("unsupported condition type");
if (destroy)
delete repr;
break;
}
case IR_OP_ARRAY_VARIABLE: { // *****
debug_fprintf(stderr, "\nomegatools.cc IR_OP_ARRAY_VARIABLE ARRAY! \n");
// temp for printing
//CG_chillRepr *CR = (CG_chillRepr *)repr;
//debug_fprintf(stderr, "repr "); CR->dump(); fflush(stdout);
//debug_fprintf(stderr, "repr "); repr->dump(); /* printf("\n"); */fflush(stdout);
std::vector<CG_outputRepr *> v = ir->QueryExpOperand(repr);
IR_Ref *ref = static_cast<IR_ScalarRef *>(ir->Repr2Ref(v[0]));
CG_chillRepr *CR = (CG_chillRepr *)v[0]; // cheat for now. we should not know this is a chillRepr
//debug_fprintf(stderr, "v "); CR->dump(); fflush(stdout);
//debug_fprintf(stderr, "v "); v[0]->dump(); /* printf("\n"); */ fflush(stdout);
chillAST_node* node = CR->GetCode();
//debug_fprintf(stderr, "\n**** walking parents!\n");
//std::vector<chillAST_VarDecl*> loopvars;
//node->gatherLoopIndeces( loopvars );
//debug_fprintf(stderr, "in omegatools, %d loop vars\n", (int)loopvars.size());
std::string s = ref->name();
//debug_fprintf(stderr, "array variable s is %s\n", s.c_str());
int max_dim = 0;
bool need_new_fsymbol = false;
std::set<std::string> vars;
//debug_fprintf(stderr, "ref->n_dim %d\n", ref->n_dim());
for (int i = 0; i < ref->n_dim(); i++) {
//debug_fprintf(stderr, "dimension %d\n", i);
Relation temp(r.n_inp());
// r is enclosing relation, we build another that will include this
r.setup_names();
if (r.is_set())
for (int j = 1; j <= r.n_set(); j++) {
temp.name_set_var(j, r.set_var(j)->name());
}
else
for (int j = 1; j <= r.n_inp(); j++) {
temp.name_input_var(j, r.input_var(j)->name());
}
F_And *temp_root = temp.add_and();
CG_outputRepr* repr;
if(dynamic_cast<IR_PointerArrayRef *>(ref) != NULL)
repr = dynamic_cast<IR_PointerArrayRef *>(ref)->index(i); // i or i+1
else if(dynamic_cast<IR_ArrayRef *>(ref) != NULL)
repr = dynamic_cast<IR_ArrayRef *>(ref)->index(i);
std::vector<Free_Var_Decl*> freevars;
Free_Var_Decl *t = new Free_Var_Decl(s);
Variable_ID e = temp.get_local(t);
freevars.insert(freevars.end(), t);
debug_fprintf(stderr, "exp2formula recursing? \n");
exp2formula(ir, temp, temp_root, freevars, repr, e, side,
IR_COND_EQ, false, uninterpreted_symbols,
uninterpreted_symbols_stringrepr);
debug_fprintf(stderr, "BACK FROM exp2formula recursing? \n");
// temp is relation for the index of the array ??
for (DNF_Iterator di(temp.query_DNF()); di; di++) {
for (EQ_Iterator ei = (*di)->EQs(); ei; ei++) {
if ((*ei).get_const() != 0)
need_new_fsymbol = true;
for (Constr_Vars_Iter cvi(*ei); cvi; cvi++)
if ((*cvi).var->kind() == Input_Var) {
if ((*cvi).var->get_position() > max_dim)
max_dim = (*cvi).var->get_position();
vars.insert(
r.input_var((*cvi).var->get_position())->name());
}
}
}
if (max_dim != ref->n_dim())
need_new_fsymbol = true;
}
//debug_fprintf(stderr, "%d vars: ", (int)vars.size());
//for (int i=0; i<vars.size(); i++) debug_fprintf(stderr, "%s", vars[i].c_str());
//for (std::set<std::string>::iterator it = vars.begin(); it != vars.end(); it++) {
// debug_fprintf(stderr, "%s ", (*it).c_str());
//}
//debug_fprintf(stderr, "\n");
// r is enclosing relation, we build another that will include
Variable_ID e = find_index(r, s, side); // s is the array named "index"
std::vector<chillAST_node*> internals = ((CG_chillRepr *)v[0])->getChillCode();
int numnodes = internals.size(); // always 1?
std::vector<chillAST_DeclRefExpr *>dres;
std::vector<chillAST_VarDecl*> decls;
std::vector<chillAST_VarDecl*> sdecls;
for (int i=0; i<numnodes; i++) {
internals[i]->gatherScalarVarDecls(sdecls); // vardecls for scalars
}
//debug_fprintf(stderr, "%d scalar var decls()\n", sdecls.size());
//for (int i=0; i<sdecls.size(); i++) {
// debug_fprintf(stderr, "vardecl %2d: ", i);
// sdecls[i]->print(); printf("\n"); fflush(stdout);
//}
//debug_fprintf(stderr, "omegatools.cc, exp2formula() NOW WHAT\n");
//exit(0);
if (e == NULL) { // s must be a free variable
//debug_fprintf(stderr, "'%s' must be free variable\n\n", s.c_str());
//debug_fprintf(stderr, "SO WE WILL CREATE A MACRO ???\n");
Free_Var_Decl *t = NULL;
// keep adding underscores until we have created a unique name based on the original
do {
s += "_";
t = NULL;
for (unsigned i = 0; i < freevars.size(); i++) {
std::string ss = freevars[i]->base_name();
if (s == ss) {
t = freevars[i];
break;
}
}
} while (t != NULL);
if (!need_new_fsymbol)
t = new Free_Var_Decl(s, ref->n_dim());
else
t = new Free_Var_Decl(s, max_dim);
freevars.insert(freevars.end(), t); // add index_____ to freevars
std::vector< std::string > Vargs; // vector of args
std::string args;
std::vector<omega::CG_outputRepr *> reprs;
std::vector<omega::CG_outputRepr *> reprs2;
for (std::set<std::string>::iterator it = vars.begin();
it != vars.end(); it++) {
if (it == vars.begin())
args += "(";
else
args += ",";
args += *it;
//debug_fprintf(stderr, "an argument to the macro: %s\n", it->c_str());
Vargs.push_back( (*it) );
reprs.push_back(ir->builder()->CreateIdent(*it));
reprs2.push_back(ir->builder()->CreateIdent(*it));
}
args += ")";
//debug_fprintf(stderr, "args '%s'\n", args.c_str());
//debug_fprintf(stderr, "Vargs ");
//for (int i=0; i<Vargs.size(); i++) debug_fprintf(stderr, "%s ",Vargs[i].c_str());
//debug_fprintf(stderr, "\n");
//debug_fprintf(stderr, "omegatools.cc ir->CreateDefineMacro( s (%s), args(%s), repr)\n", s.c_str(), args.c_str());
// TODO repr, the rhs of the macro, needs to NOT refer to an actual variable ???
ir->CreateDefineMacro(s, Vargs, repr);
// index_(i) uses i outputrepr
//debug_fprintf(stderr,"omegatools.cc making uninterpreted symbol %s\n",s.c_str());
uninterpreted_symbols.insert( // adding to uninterpreted_symbols
std::pair<std::string, std::vector<omega::CG_outputRepr *> >(
s, reprs));
uninterpreted_symbols_stringrepr.insert( // adding to uninterpreted_symbols_stringrepr
std::pair<std::string, std::vector<omega::CG_outputRepr *> >(s, reprs2));
e = r.get_local(t, Input_Tuple);
if (rel == IR_COND_GE || rel == IR_COND_GT) {
GEQ_Handle h = f_root->add_GEQ();
h.update_coef(lhs, 1);
h.update_coef(e, -1);
if (rel == IR_COND_GT)
h.update_const(-1);
} else if (rel == IR_COND_LE || rel == IR_COND_LT) {
GEQ_Handle h = f_root->add_GEQ();
h.update_coef(lhs, -1);
h.update_coef(e, 1);
if (rel == IR_COND_LT)
h.update_const(-1);
} else if (rel == IR_COND_EQ) {
EQ_Handle h = f_root->add_EQ();
h.update_coef(lhs, 1);
h.update_coef(e, -1);
} else
throw std::invalid_argument("unsupported condition type");
}
// delete v[0];
delete ref;
if (destroy) delete repr;
//debug_fprintf(stderr, "FINALLY DONE with IR_OP_ARRAY_VARIABLE\n\n");
break;
}
case IR_OP_NULL:
debug_fprintf(stderr, "IR_OP_NULL\n");
break;
default:
throw ir_exp_error("unsupported operand type");
}
}
//-----------------------------------------------------------------------------
// Build dependence relation for two array references.
// -----------------------------------------------------------------------------
Relation arrays2relation(IR_Code *ir, std::vector<Free_Var_Decl*> &freevars,
const IR_ArrayRef *ref_src, const Relation &IS_w,
const IR_ArrayRef *ref_dst, const Relation &IS_r,
std::map<std::string, std::vector<omega::CG_outputRepr *> > &uninterpreted_symbols,
std::map<std::string, std::vector<omega::CG_outputRepr *> > &uninterpreted_symbols_stringrepr) {
//debug_fprintf(stderr, "arrays2relation()\n");
//debug_fprintf(stderr, "%d freevars\n", freevars.size());
//for (int i=0; i<freevars.size(); i++) debug_fprintf(stderr, "freevar %d %s\n", i, (const char *)(freevars[i]->base_name()));
Relation &IS1 = const_cast<Relation &>(IS_w);
Relation &IS2 = const_cast<Relation &>(IS_r);
//Relation *helper;
//helper = new Relation(IS1); debug_fprintf(stderr, "IS1 "); helper->print(); fflush(stdout);
//helper = new Relation(IS2); debug_fprintf(stderr, "IS2 "); helper->print(); fflush(stdout);
Relation r(IS1.n_set(), IS2.n_set());
//helper = new Relation(r); debug_fprintf(stderr, "r "); helper->print(); fflush(stdout);
for (int i = 1; i <= IS1.n_set(); i++)
r.name_input_var(i, IS1.set_var(i)->name());
for (int i = 1; i <= IS2.n_set(); i++)
r.name_output_var(i, IS2.set_var(i)->name()+"'");
//debug_fprintf(stderr, "omegatools.cc sym_src\n");
IR_Symbol *sym_src = ref_src->symbol();
IR_Symbol *sym_dst = ref_dst->symbol();
//debug_fprintf(stderr, "omegatools.cc going to do IR_Symbol operator==\n");
//debug_fprintf(stderr, "omegatools.cc comparing symbol 0x%x to symbol 0x%x\n", sym_src, sym_dst);
//if (!(*sym_src == *sym_dst)) debug_fprintf(stderr, "!(*sym_src == *sym_dst)\n");
//debug_fprintf(stderr, "calling !=\n");
//if (*sym_src != *sym_dst) debug_fprintf(stderr, "omegatools.cc (*sym_src != *sym_dst) TRUE\n");
//else debug_fprintf(stderr, "omegatools.cc (*sym_src != *sym_dst) FALSE\n");
//debug_fprintf(stderr, "calling ==\n");
//if ((*sym_src == *sym_dst)) debug_fprintf(stderr, "(*sym_src == *sym_dst)) TRUE \n");
//else debug_fprintf(stderr, "(*sym_src == *sym_dst) FALSE \n");
if (*sym_src != *sym_dst) {
//if (!(*sym_src == *sym_dst)) {
//debug_fprintf(stderr, "False Relation\n");
r.add_or(); // False Relation
delete sym_src;
delete sym_dst;
return r;
}
else {
delete sym_src;
delete sym_dst;
}
//debug_fprintf(stderr, "f_root\n");
F_And *f_root = r.add_and();
//debug_fprintf(stderr, "omegatools.cc ref_src->n_dim() %d\n", ref_src->n_dim());
for (int i = 0; i < ref_src->n_dim(); i++) {
//debug_fprintf(stderr, "arrays2 i %d\n", i);
F_Exists *f_exists = f_root->add_exists();
Variable_ID e1 = f_exists->declare(tmp_e());
Variable_ID e2 = f_exists->declare(tmp_e());
F_And *f_and = f_exists->add_and();
CG_outputRepr *repr_src = ref_src->index(i);
CG_outputRepr *repr_dst = ref_dst->index(i);
bool has_complex_formula = false;
if (ir->QueryExpOperation(repr_src) == IR_OP_ARRAY_VARIABLE
|| ir->QueryExpOperation(repr_dst) == IR_OP_ARRAY_VARIABLE)
has_complex_formula = true;
if (!has_complex_formula) {
try {
exp2formula(ir, r, f_and, freevars, repr_src, e1, 'w', IR_COND_EQ, false,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
exp2formula(ir, r, f_and, freevars, repr_dst, e2, 'r', IR_COND_EQ, false,
uninterpreted_symbols, uninterpreted_symbols_stringrepr);
}
catch (const ir_exp_error &e) {
has_complex_formula = true;
}
if (!has_complex_formula) {
EQ_Handle h = f_and->add_EQ();
h.update_coef(e1, 1);
h.update_coef(e2, -1);
}
}
repr_src->clear();
repr_dst->clear();
delete repr_src;
delete repr_dst;
}
// add iteration space restriction
r = Restrict_Domain(r, copy(IS1));
r = Restrict_Range(r, copy(IS2));
// reset the output variable names lost in restriction
for (int i = 1; i <= IS2.n_set(); i++)
r.name_output_var(i, IS2.set_var(i)->name()+"'");
//helper = new Relation(r); debug_fprintf(stderr, "r "); helper->print(); fflush(stdout);
//debug_fprintf(stderr, "leaving arrays2relation\n");
return r;
}
//-----------------------------------------------------------------------------
// Convert array dependence relation into set of dependence vectors, assuming
// ref_w is lexicographically before ref_r in the source code.
// -----------------------------------------------------------------------------
std::pair<std::vector<DependenceVector>, std::vector<DependenceVector> > relation2dependences (
const IR_ArrayRef *ref_src,
const IR_ArrayRef *ref_dst,
const Relation &r) {