rtlil: Make Process handling more uniform with Cell and Wire.

- add a backlink to module from Process
- make constructor and destructor protected, expose Module functions
  to add and remove processes

1 files changed, 31 insertions, 1 deletions

diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc
index b7bef723f..21ee15ac5 100644
--- a/kernel/rtlil.cc
+++ b/kernel/rtlil.cc
@@ -1839,6 +1839,14 @@ void RTLIL::Module::add(RTLIL::Cell *cell)
 	cell->module = this;
 }
 
+void RTLIL::Module::add(RTLIL::Process *process)
+{
+	log_assert(!process->name.empty());
+	log_assert(count_id(process->name) == 0);
+	processes[process->name] = process;
+	process->module = this;
+}
+
 void RTLIL::Module::remove(const pool<RTLIL::Wire*> &wires)
 {
 	log_assert(refcount_wires_ == 0);
@@ -1895,6 +1903,13 @@ void RTLIL::Module::remove(RTLIL::Cell *cell)
 	delete cell;
 }
 
+void RTLIL::Module::remove(RTLIL::Process *process)
+{
+	log_assert(processes.count(process->name) != 0);
+	processes.erase(process->name);
+	delete process;
+}
+
 void RTLIL::Module::rename(RTLIL::Wire *wire, RTLIL::IdString new_name)
 {
 	log_assert(wires_[wire->name] == wire);
@@ -2120,11 +2135,19 @@ RTLIL::Memory *RTLIL::Module::addMemory(RTLIL::IdString name, const RTLIL::Memor
 	return mem;
 }
 
+RTLIL::Process *RTLIL::Module::addProcess(RTLIL::IdString name)
+{
+	RTLIL::Process *proc = new RTLIL::Process;
+	proc->name = name;
+	add(proc);
+	return proc;
+}
+
 RTLIL::Process *RTLIL::Module::addProcess(RTLIL::IdString name, const RTLIL::Process *other)
 {
 	RTLIL::Process *proc = other->clone();
 	proc->name = name;
-	processes[name] = proc;
+	add(proc);
 	return proc;
 }
 
@@ -2920,6 +2943,13 @@ RTLIL::Memory::Memory()
 #endif
 }
 
+RTLIL::Process::Process() : module(nullptr)
+{
+	static unsigned int hashidx_count = 123456789;
+	hashidx_count = mkhash_xorshift(hashidx_count);
+	hashidx_ = hashidx_count;
+}
+
 RTLIL::Cell::Cell() : module(nullptr)
 {
 	static unsigned int hashidx_count = 123456789;