static int show_stmt_condit(ivl_statement_t net, ivl_scope_t sscope)
{
int rc = 0;
unsigned lab_false, lab_out;
ivl_expr_t exp = ivl_stmt_cond_expr(net);
struct vector_info cond = draw_eval_expr(exp, STUFF_OK_XZ|STUFF_OK_47);
assert(cond.wid == 1);
lab_false = local_count++;
lab_out = local_count++;
fprintf(vvp_out, " %%jmp/0xz T_%d.%d, %u;\n",
thread_count, lab_false, cond.base);
/* Done with the condition expression. */
if (cond.base >= 8)
clr_vector(cond);
if (ivl_stmt_cond_true(net))
rc += show_statement(ivl_stmt_cond_true(net), sscope);
if (ivl_stmt_cond_false(net)) {
fprintf(vvp_out, " %%jmp T_%d.%d;\n", thread_count, lab_out);
fprintf(vvp_out, "T_%d.%u ;\n", thread_count, lab_false);
clear_expression_lookaside();
rc += show_statement(ivl_stmt_cond_false(net), sscope);
fprintf(vvp_out, "T_%d.%u ;\n", thread_count, lab_out);
clear_expression_lookaside();
} else {
fprintf(vvp_out, "T_%d.%u ;\n", thread_count, lab_false);
clear_expression_lookaside();
}
return rc;
}
static void emit_stmt_condit(ivl_scope_t scope, ivl_statement_t stmt)
{
ivl_statement_t true_stmt = ivl_stmt_cond_true(stmt);
ivl_statement_t false_stmt = ivl_stmt_cond_false(stmt);
unsigned nest = 0;
fprintf(vlog_out, "%*cif (", get_indent(), ' ');
emit_expr(scope, ivl_stmt_cond_expr(stmt), 0);
fprintf(vlog_out, ")");
emit_stmt_file_line(stmt);
if (true_stmt) {
/* If we have a false statement and the true statement is a
* condition that does not have a false clause then we need
* to add a begin/end pair to keep the else clause attached
* to this condition. */
if (false_stmt &&
(ivl_statement_type(true_stmt) == IVL_ST_CONDIT) &&
(! ivl_stmt_cond_false(true_stmt))) nest = 1;
if (nest) {
fprintf(vlog_out, " begin\n");
indent += indent_incr;
} else single_indent = 1;
emit_stmt(scope, true_stmt);
} else {
fprintf(vlog_out, ";\n");
}
if (false_stmt) {
if (nest) {
assert(indent >= indent_incr);
indent -= indent_incr;
}
fprintf(vlog_out, "%*c", get_indent(), ' ');
if (nest) fprintf(vlog_out, "end ");
fprintf(vlog_out, "else");
single_indent = 1;
emit_stmt(scope, false_stmt);
}
}
void clsAnalysis::AnalyzeStatement(clsStatement * pStatement, clsBasicBlock * pBasicBlock, clsEvent * pEvent)
{
ivl_statement_t ivl_Statement;
vector<clsLValue *>::iterator it_pLValue;
vector<clsBasicBlock *>::iterator it_pBasicBlock;
unsigned int iNumberOfParameters;
unsigned int iNumberOfStatements;
unsigned int iIndex;
ivl_Statement = pStatement->m_ivl_Statement;
it_pBasicBlock = pBasicBlock->m_pSuccessors.begin();
switch (pStatement->m_Type)
{
default:
_DebugPrint("/* Unrecognized statement of type %u is encountered. */\n", ivl_statement_type(ivl_Statement) );
_Assert(0 && "Frontend Error: Unrecognized statement is encountered.");
break;
case CMODELGEN_STATEMENT_NOP:
break;
case CMODELGEN_STATEMENT_WAIT:
if (it_pBasicBlock != pBasicBlock->m_pSuccessors.end() && *it_pBasicBlock != NULL)
{
AnalyzeBasicBlock(*it_pBasicBlock, pEvent);
}
break;
case CMODELGEN_STATEMENT_CASE:
case CMODELGEN_STATEMENT_CASEZ:
case CMODELGEN_STATEMENT_CASEX:
AnalyzeExpression(pStatement->m_pExpressions[0], pEvent);
iNumberOfStatements = ivl_stmt_case_count(ivl_Statement);
for(iIndex = 0; iIndex < iNumberOfStatements; ++iIndex)
{
AnalyzeExpression(pStatement->m_pExpressions[iIndex + 1], pEvent);
if (it_pBasicBlock != pBasicBlock->m_pSuccessors.end() && *it_pBasicBlock != NULL)
{
AnalyzeBasicBlock(*it_pBasicBlock, pEvent);
}
if (it_pBasicBlock != pBasicBlock->m_pSuccessors.end() )
{
++it_pBasicBlock;
}
}
if (it_pBasicBlock != pBasicBlock->m_pSuccessors.end() && *it_pBasicBlock != NULL)
{
AnalyzeBasicBlock(*it_pBasicBlock, pEvent);
}
break;
case CMODELGEN_STATEMENT_COND:
AnalyzeExpression(pStatement->m_pExpressions[0], pEvent);
if (0 != ivl_stmt_cond_true(ivl_Statement) )
{
if (it_pBasicBlock != pBasicBlock->m_pSuccessors.end() && *it_pBasicBlock != NULL)
{
AnalyzeBasicBlock(*it_pBasicBlock, pEvent);
}
if (it_pBasicBlock != pBasicBlock->m_pSuccessors.end() )
{
++it_pBasicBlock;
}
}
if (0 != ivl_stmt_cond_false(ivl_Statement) )
{
if (it_pBasicBlock != pBasicBlock->m_pSuccessors.end() && *it_pBasicBlock != NULL)
{
AnalyzeBasicBlock(*it_pBasicBlock, pEvent);
}
if (it_pBasicBlock != pBasicBlock->m_pSuccessors.end() )
{
++it_pBasicBlock;
}
}
if (it_pBasicBlock != pBasicBlock->m_pSuccessors.end() && *it_pBasicBlock != NULL)
{
AnalyzeBasicBlock(*it_pBasicBlock, pEvent);
}
break;
case CMODELGEN_STATEMENT_REPEAT:
case CMODELGEN_STATEMENT_WHILE:
AnalyzeExpression(pStatement->m_pExpressions[0], pEvent);
if (it_pBasicBlock != pBasicBlock->m_pSuccessors.end() && *it_pBasicBlock != NULL)
{
AnalyzeBasicBlock(*it_pBasicBlock, pEvent);
}
if (it_pBasicBlock != pBasicBlock->m_pSuccessors.end() && *it_pBasicBlock != NULL)
{
AnalyzeBasicBlock(*it_pBasicBlock, pEvent);
}
break;
case CMODELGEN_STATEMENT_NB_ASSIGN:
iIndex = 0;
for (it_pLValue = pStatement->m_pLValues.begin();
it_pLValue != pStatement->m_pLValues.end();
++it_pLValue)
{
AnalyzeNBLValue(*it_pLValue, pEvent);
++iIndex;
}
AnalyzeExpression(pStatement->m_pExpressions[0], pEvent);
break;
case CMODELGEN_STATEMENT_ASSIGN:
iIndex = 0;
for (it_pLValue = pStatement->m_pLValues.begin();
it_pLValue != pStatement->m_pLValues.end();
++it_pLValue)
{
AnalyzeLValue(*it_pLValue, pEvent);
++iIndex;
}
AnalyzeExpression(pStatement->m_pExpressions[0], pEvent);
break;
case CMODELGEN_STATEMENT_STASK:
iNumberOfParameters = ivl_stmt_parm_count(ivl_Statement);
for(iIndex = 0; iIndex < iNumberOfParameters; ++iIndex)
{
AnalyzeExpression(pStatement->m_pExpressions[iIndex], pEvent);
}
break;
case CMODELGEN_STATEMENT_UTASK:
break;
case CMODELGEN_STATEMENT_DISABLE:
break;
case CMODELGEN_STATEMENT_ALLOC:
break;
case CMODELGEN_STATEMENT_FREE:
break;
}
}
static void show_statement(ivl_statement_t net, unsigned ind)
{
const ivl_statement_type_t code = ivl_statement_type(net);
switch (code) {
case IVL_ST_ASSIGN:
fprintf(out, "%*s", ind, "");
show_assign_lvals(net);
fprintf(out, " = ");
show_expression(ivl_stmt_rval(net));
fprintf(out, ";\n");
break;
case IVL_ST_BLOCK: {
unsigned cnt = ivl_stmt_block_count(net);
unsigned idx;
fprintf(out, "%*sbegin\n", ind, "");
for (idx = 0 ; idx < cnt ; idx += 1) {
ivl_statement_t cur = ivl_stmt_block_stmt(net, idx);
show_statement(cur, ind+4);
}
fprintf(out, "%*send\n", ind, "");
break;
}
case IVL_ST_CONDIT: {
ivl_statement_t t = ivl_stmt_cond_true(net);
ivl_statement_t f = ivl_stmt_cond_false(net);
fprintf(out, "%*sif (", ind, "");
show_expression(ivl_stmt_cond_expr(net));
fprintf(out, ")\n");
if (t)
show_statement(t, ind+4);
else
fprintf(out, "%*s;\n", ind+4, "");
if (f) {
fprintf(out, "%*selse\n", ind, "");
show_statement(f, ind+4);
}
break;
}
case IVL_ST_DELAY:
fprintf(out, "%*s#%lu\n", ind, "", ivl_stmt_delay_val(net));
show_statement(ivl_stmt_sub_stmt(net), ind+2);
break;
case IVL_ST_NOOP:
fprintf(out, "%*s/* noop */;\n", ind, "");
break;
case IVL_ST_STASK:
if (ivl_stmt_parm_count(net) == 0) {
fprintf(out, "%*s%s;\n", ind, "", ivl_stmt_name(net));
} else {
unsigned idx;
fprintf(out, "%*s%s(", ind, "", ivl_stmt_name(net));
show_expression(ivl_stmt_parm(net, 0));
for (idx = 1 ; idx < ivl_stmt_parm_count(net) ; idx += 1) {
fprintf(out, ", ");
show_expression(ivl_stmt_parm(net, idx));
}
fprintf(out, ");\n");
}
break;
case IVL_ST_WAIT:
fprintf(out, "%*s@(...)\n", ind, "");
show_statement(ivl_stmt_sub_stmt(net), ind+2);
break;
case IVL_ST_WHILE:
fprintf(out, "%*swhile (<?>)\n", ind, "");
show_statement(ivl_stmt_sub_stmt(net), ind+2);
break;
default:
fprintf(out, "%*sunknown statement type (%d)\n", ind, "", code);
}
}