rishi/scryer-prolog
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use branch numbers to detect branch subsumption

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This commit is contained in:
Mark Thom
2025-12-09 23:14:24 -08:00
parent 16dc10ee96
commit 9089f9ddb4
6 changed files with 218 additions and 181 deletions
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17
src/codegen.rs
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@@ -994,20 +994,27 @@ impl CodeGenerator {
self.marker.in_tail_position = false;
self.marker.reset_contents();
}
ClauseItem::FirstBranch(num_branches) => {
ClauseItem::FirstBranch {
branch_num,
num_branches,
} => {
branch_code_stack.add_new_branch_stack();
branch_code_stack.add_new_branch();
self.marker.branch_stack.add_branch_stack(num_branches);
self.marker
.branch_stack
.add_branch_stack(branch_num.clone(), num_branches);
self.marker.add_branch();
}
ClauseItem::NextBranch => {
ClauseItem::NextBranch { branch_num } => {
branch_code_stack.add_new_branch();
self.marker.add_branch();
self.marker.branch_stack.incr_current_branch();
self.marker
.branch_stack
.incr_current_branch(branch_num.clone());
}
ClauseItem::BranchEnd(depth) => {
ClauseItem::BranchEnd { depth } => {
if !clause_iter.in_tail_position() {
let subsumed_hits =
branch_code_stack.push_missing_vars(depth, &mut self.marker);