archive/blender-archive
Archived
1
1
Fork 0
Code Pull Requests Packages Activity

Functions: store cursors to previous instructions

Browse Source 
Now an instruction knows the cursors where it is inserted instead
of just the instruction that references it. This has two benefits:
* An instruction knows when it is the entry instruction.
* The cursor can contain more information, e.g. if it is linked to the
  true or false branch of a branch instruction.

  This also simplifies updating the procedure in future optimization
  passes.
This commit is contained in:
Jacques Lucke
2021-09-11 11:43:59 +02:00
parent 6ae8de4742
commit aeeffb935e
4 changed files with 183 additions and 129 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
source/blender/functions/intern/multi_function_procedure_builder.cc
View File

@@ -18,50 +18,6 @@
namespace blender::fn {
void MFInstructionCursor::insert(MFProcedure &procedure, MFInstruction *new_instruction)
{
if (instruction_ == nullptr) {
if (is_entry_) {
procedure.set_entry(*new_instruction);
}
else {
/* The cursors points at nothing, nothing to do. */
}
}
else {
switch (instruction_->type()) {
case MFInstructionType::Call: {
static_cast<MFCallInstruction *>(instruction_)->set_next(new_instruction);
break;
}
case MFInstructionType::Branch: {
MFBranchInstruction &branch_instruction = *static_cast<MFBranchInstruction *>(
instruction_);
if (branch_output_) {
branch_instruction.set_branch_true(new_instruction);
}
else {
branch_instruction.set_branch_false(new_instruction);
}
break;
}
case MFInstructionType::Destruct: {
static_cast<MFDestructInstruction *>(instruction_)->set_next(new_instruction);
break;
}
case MFInstructionType::Dummy: {
static_cast<MFDummyInstruction *>(instruction_)->set_next(new_instruction);
break;
}
case MFInstructionType::Return: {
/* It shouldn't be possible to build a cursor that points to a return instruction. */
BLI_assert_unreachable();
break;
}
}
}
}
void MFProcedureBuilder::add_destruct(MFVariable &variable)
{
MFDestructInstruction &instruction = procedure_->new_destruct_instruction();