mirror of
https://github.com/YosysHQ/yosys
synced 2025-11-03 21:09:12 +00:00
Improve simplec back-end
This commit is contained in:
Clifford Wolf
parent
ef7594ce3d
commit
628daab277
1 changed files with 60 additions and 25 deletions
|
|
@ -116,7 +116,6 @@ struct SimplecWorker
|
|||
|
||||
Design *design;
|
||||
dict<Module*, SigMap> sigmaps;
|
||||
HierDirtyFlags *dirty_flags = nullptr;
|
||||
|
||||
vector<string> signal_declarations;
|
||||
pool<int> generated_sigtypes;
|
||||
|
|
@ -137,6 +136,9 @@ struct SimplecWorker
|
|||
|
||||
dict<Cell*, int> topoidx;
|
||||
|
||||
pool<string> activated_cells;
|
||||
pool<string> reactivated_cells;
|
||||
|
||||
SimplecWorker(Design *design) : design(design)
|
||||
{
|
||||
}
|
||||
|
|
@ -178,6 +180,7 @@ struct SimplecWorker
|
|||
if ('a' <= s[i] && s[i] <= 'z')
|
||||
s[i] -= 'a' - 'A';
|
||||
|
||||
util_declarations.push_back("");
|
||||
util_declarations.push_back(stringf("#ifndef %s", s.c_str()));
|
||||
util_declarations.push_back(stringf("#define %s", s.c_str()));
|
||||
}
|
||||
|
|
@ -189,7 +192,7 @@ struct SimplecWorker
|
|||
if (generated_utils.count(util_name) == 0)
|
||||
{
|
||||
util_ifdef_guard(util_name);
|
||||
util_declarations.push_back(stringf("bool %s(const %s *sig)", util_name.c_str(), sigtype(n).c_str()));
|
||||
util_declarations.push_back(stringf("static inline bool %s(const %s *sig)", util_name.c_str(), sigtype(n).c_str()));
|
||||
util_declarations.push_back(stringf("{"));
|
||||
|
||||
int word_idx = idx / max_uintsize, word_offset = idx % max_uintsize;
|
||||
|
|
@ -212,7 +215,7 @@ struct SimplecWorker
|
|||
if (generated_utils.count(util_name) == 0)
|
||||
{
|
||||
util_ifdef_guard(util_name);
|
||||
util_declarations.push_back(stringf("void %s(%s *sig, bool value)", util_name.c_str(), sigtype(n).c_str()));
|
||||
util_declarations.push_back(stringf("static inline void %s(%s *sig, bool value)", util_name.c_str(), sigtype(n).c_str()));
|
||||
util_declarations.push_back(stringf("{"));
|
||||
|
||||
int word_idx = idx / max_uintsize, word_offset = idx % max_uintsize;
|
||||
|
|
@ -316,7 +319,15 @@ struct SimplecWorker
|
|||
for (int i = 0; i < GetSize(topo.sorted); i++)
|
||||
topoidx[mod->cell(topo.sorted[i])] = i;
|
||||
|
||||
string ifdef_name = stringf("yosys_simplec_%s_state_t", cid(mod->name).c_str());
|
||||
|
||||
for (int i = 0; i < GetSize(ifdef_name); i++)
|
||||
if ('a' <= ifdef_name[i] && ifdef_name[i] <= 'z')
|
||||
ifdef_name[i] -= 'a' - 'A';
|
||||
|
||||
struct_declarations.push_back("");
|
||||
struct_declarations.push_back(stringf("#ifndef %s", ifdef_name.c_str()));
|
||||
struct_declarations.push_back(stringf("#define %s", ifdef_name.c_str()));
|
||||
struct_declarations.push_back(stringf("struct %s_state_t", cid(mod->name).c_str()));
|
||||
struct_declarations.push_back("{");
|
||||
|
||||
|
|
@ -342,6 +353,7 @@ struct SimplecWorker
|
|||
struct_declarations.push_back(stringf(" struct %s_state_t %s; // %s", cid(c->type).c_str(), cid(c->name).c_str(), log_id(c)));
|
||||
|
||||
struct_declarations.push_back(stringf("};"));
|
||||
struct_declarations.push_back("#endif");
|
||||
}
|
||||
|
||||
void eval_cell(HierDirtyFlags *work, const string &prefix, const string &/* log_prefix */, Cell *cell)
|
||||
|
|
@ -466,7 +478,7 @@ struct SimplecWorker
|
|||
while (work->dirty)
|
||||
{
|
||||
if (verbose && (!work->dirty_bits.empty() || !work->dirty_cells.empty()))
|
||||
log("In %s:\n", log_prefix.c_str());
|
||||
log(" In %s:\n", log_prefix.c_str());
|
||||
|
||||
while (!work->dirty_bits.empty() || !work->dirty_cells.empty())
|
||||
{
|
||||
|
|
@ -477,7 +489,7 @@ struct SimplecWorker
|
|||
|
||||
for (SigChunk chunk : dirtysig.chunks()) {
|
||||
if (verbose)
|
||||
log(" Propagating %s.%s[%d:%d].\n", log_prefix.c_str(), log_id(chunk.wire), chunk.offset+chunk.width-1, chunk.offset);
|
||||
log(" Propagating %s.%s[%d:%d].\n", log_prefix.c_str(), log_id(chunk.wire), chunk.offset+chunk.width-1, chunk.offset);
|
||||
funct_declarations.push_back(stringf(" // Updated signal in %s: %s", log_prefix.c_str(), log_signal(chunk)));
|
||||
}
|
||||
|
||||
|
|
@ -502,7 +514,7 @@ struct SimplecWorker
|
|||
work->parent->set_dirty(parent_bit);
|
||||
|
||||
if (verbose)
|
||||
log(" Propagating %s.%s[%d] -> %s.%s[%d].\n", log_prefix.c_str(), log_id(bit.wire), bit.offset,
|
||||
log(" Propagating %s.%s[%d] -> %s.%s[%d].\n", log_prefix.c_str(), log_id(bit.wire), bit.offset,
|
||||
parent_log_prefix.c_str(), log_id(parent_bit.wire), parent_bit.offset);
|
||||
}
|
||||
|
||||
|
|
@ -522,11 +534,11 @@ struct SimplecWorker
|
|||
child->set_dirty(child_bit);
|
||||
|
||||
if (verbose)
|
||||
log(" Propagating %s.%s[%d] -> %s.%s.%s[%d].\n", log_prefix.c_str(), log_id(bit.wire), bit.offset,
|
||||
log(" Propagating %s.%s[%d] -> %s.%s.%s[%d].\n", log_prefix.c_str(), log_id(bit.wire), bit.offset,
|
||||
log_prefix.c_str(), log_id(std::get<0>(port)), log_id(child_bit.wire), child_bit.offset);
|
||||
} else {
|
||||
if (verbose)
|
||||
log(" Marking cell %s.%s (via %s.%s[%d]).\n", log_prefix.c_str(), log_id(std::get<0>(port)),
|
||||
log(" Marking cell %s.%s (via %s.%s[%d]).\n", log_prefix.c_str(), log_id(std::get<0>(port)),
|
||||
log_prefix.c_str(), log_id(bit.wire), bit.offset);
|
||||
work->set_dirty(std::get<0>(port));
|
||||
}
|
||||
|
|
@ -542,8 +554,15 @@ struct SimplecWorker
|
|||
if (cell == nullptr || topoidx.at(cell) < topoidx.at(c))
|
||||
cell = c;
|
||||
|
||||
string hiername = log_prefix + "." + log_id(cell);
|
||||
|
||||
if (verbose)
|
||||
log(" Evaluating %s.%s (%s, best of %d).\n", log_prefix.c_str(), log_id(cell), log_id(cell->type), GetSize(work->dirty_cells));
|
||||
log(" Evaluating %s (%s, best of %d).\n", hiername.c_str(), log_id(cell->type), GetSize(work->dirty_cells));
|
||||
|
||||
if (activated_cells.count(hiername))
|
||||
reactivated_cells.insert(hiername);
|
||||
activated_cells.insert(hiername);
|
||||
|
||||
eval_cell(work, prefix, log_prefix, cell);
|
||||
work->unset_dirty(cell);
|
||||
}
|
||||
|
|
@ -554,38 +573,54 @@ struct SimplecWorker
|
|||
}
|
||||
}
|
||||
|
||||
void run(Module *mod)
|
||||
void make_func(HierDirtyFlags *work, const string &func_name)
|
||||
{
|
||||
create_module_struct(mod);
|
||||
log("Generating function %s():\n", func_name.c_str());
|
||||
|
||||
dirty_flags = new HierDirtyFlags(mod, IdString(), nullptr);
|
||||
activated_cells.clear();
|
||||
reactivated_cells.clear();
|
||||
|
||||
funct_declarations.push_back("");
|
||||
funct_declarations.push_back(stringf("void %s_init(struct %s_state_t *state)", cid(mod->name).c_str(), cid(mod->name).c_str()));
|
||||
funct_declarations.push_back(stringf("static void %s(struct %s_state_t *state)", func_name.c_str(), cid(work->module->name).c_str()));
|
||||
funct_declarations.push_back("{");
|
||||
eval_dirty(work, "state->", log_id(work->module->name), "", "");
|
||||
funct_declarations.push_back("}");
|
||||
|
||||
funct_declarations.push_back("");
|
||||
funct_declarations.push_back(stringf("void %s_eval(struct %s_state_t *state)", cid(mod->name).c_str(), cid(mod->name).c_str()));
|
||||
funct_declarations.push_back("{");
|
||||
log(" Activated %d cells (%d activated more than once).\n", GetSize(activated_cells), GetSize(reactivated_cells));
|
||||
}
|
||||
|
||||
void make_init_func(HierDirtyFlags* /* work */)
|
||||
{
|
||||
// FIXME
|
||||
}
|
||||
|
||||
void make_eval_func(HierDirtyFlags *work)
|
||||
{
|
||||
Module *mod = work->module;
|
||||
|
||||
for (Wire *w : mod->wires()) {
|
||||
if (w->port_input)
|
||||
for (SigBit bit : sigmaps.at(mod)(w))
|
||||
dirty_flags->set_dirty(bit);
|
||||
work->set_dirty(bit);
|
||||
}
|
||||
|
||||
eval_dirty(dirty_flags, "state->", log_id(mod), "", "");
|
||||
make_func(work, cid(work->module->name) + "_eval");
|
||||
}
|
||||
|
||||
funct_declarations.push_back("}");
|
||||
void make_tick_func(HierDirtyFlags* /* work */)
|
||||
{
|
||||
// FIXME
|
||||
}
|
||||
|
||||
funct_declarations.push_back("");
|
||||
funct_declarations.push_back(stringf("void %s_tick(struct %s_state_t *state)", cid(mod->name).c_str(), cid(mod->name).c_str()));
|
||||
funct_declarations.push_back("{");
|
||||
funct_declarations.push_back("}");
|
||||
void run(Module *mod)
|
||||
{
|
||||
create_module_struct(mod);
|
||||
|
||||
delete dirty_flags;
|
||||
dirty_flags = nullptr;
|
||||
HierDirtyFlags work(mod, IdString(), nullptr);
|
||||
|
||||
make_init_func(&work);
|
||||
make_eval_func(&work);
|
||||
make_tick_func(&work);
|
||||
}
|
||||
|
||||
void write(std::ostream &f)
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue