void tab_line(const string& line, stringstream& tab_buf, double swid, const vector<int>& delta) {
int len = line.length();
bool is_modified = false;
int pos = 0, c = 0, diff = 0;
// cout << "line = '" << line << "'" << endl;
while (pos < (int)line.length()) {
if (line[pos] == 9) {
c = (c/8)*8+8; pos++;
} else if (line[pos] == ' ') {
c++; pos++;
} else {
int savec = c;
string next_line;
while (pos < len && line[pos] != 9 &&
!(pos < len-1 && isspace(line[pos]) && isspace(line[pos+1]))) {
next_line += line[pos++]; c++;
}
double br,bd;
replace_exp(next_line);
// cout << "'" << next_line << "': " << savec << endl;
g_textfindend(next_line,&br,&bd);
int real_c = savec - diff;
tab_buf << "\\movexy{" << (swid*real_c) << "}{0}";
tab_buf << next_line;
tab_buf << "\\movexy{" << (-br-swid*real_c) << "}{0}";
is_modified = true;
diff += savec < (int)delta.size() ? delta[savec] : 0;
diff ++;
// cout << "savec = " << savec << " delta = " << delta[savec] << " diff = " << diff << endl;
}
}
if (!is_modified) tab_buf << "\\movexy{0}{0}";
tab_buf << endl;
}
void
backprop::optimize_phi (gphi *phi, tree var, const usage_info *info)
{
/* If the sign of the result doesn't matter, try to strip sign operations
from arguments. */
if (info->flags.ignore_sign)
{
basic_block bb = gimple_bb (phi);
use_operand_p use;
ssa_op_iter oi;
bool replaced = false;
FOR_EACH_PHI_ARG (use, phi, oi, SSA_OP_USE)
{
/* Propagating along abnormal edges is delicate, punt for now. */
const int index = PHI_ARG_INDEX_FROM_USE (use);
if (EDGE_PRED (bb, index)->flags & EDGE_ABNORMAL)
continue;
tree new_arg = strip_sign_op (USE_FROM_PTR (use));
if (new_arg)
{
if (!replaced)
prepare_change (var);
if (dump_file && (dump_flags & TDF_DETAILS))
note_replacement (phi, USE_FROM_PTR (use), new_arg);
replace_exp (use, new_arg);
replaced = true;
}
}
}
void
backprop::optimize_phi (gphi *phi, tree var, const usage_info *info)
{
/* If the sign of the result doesn't matter, strip sign operations
from all arguments. */
if (info->flags.ignore_sign)
{
use_operand_p use;
ssa_op_iter oi;
bool replaced = false;
FOR_EACH_PHI_ARG (use, phi, oi, SSA_OP_USE)
{
tree new_arg = strip_sign_op (USE_FROM_PTR (use));
if (new_arg)
{
if (!replaced)
prepare_change (var);
if (dump_file && (dump_flags & TDF_DETAILS))
note_replacement (phi, USE_FROM_PTR (use), new_arg);
replace_exp (use, new_arg);
replaced = true;
}
}
