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Merge pull request #3185 from mthom/install_verify_attr_opt

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Optimize `verify_attr` by removing the need to scan instructions
This commit is contained in:
Mark Thom
2025-12-03 19:10:46 -07:00
committed by GitHub
parent 6fdcd17f32 b287f0aedb
commit 96a9dfcc1b
12 changed files with 2272 additions and 1947 deletions
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9
src/machine/attributed_variables.rs
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@@ -15,7 +15,6 @@ pub(super) struct AttrVarInitializer {
pub(super) bindings: Bindings,
pub(super) p: usize,
pub(super) cp: usize,
// pub(super) instigating_p: usize,
pub(super) verify_attrs_loc: usize,
}
@@ -41,13 +40,13 @@ impl MachineState {
pub(super) fn push_attr_var_binding(&mut self, h: usize, addr: HeapCellValue) {
if self.attr_var_init.bindings.is_empty() {
// save self.p and self.cp and ensure that the next
// instruction is InstallVerifyAttrInterrupt.
// instruction is RunVerifyAttrInterrupt.
self.attr_var_init.p = self.p;
self.attr_var_init.cp = self.cp;
self.p = INSTALL_VERIFY_ATTR_INTERRUPT - 1;
self.cp = INSTALL_VERIFY_ATTR_INTERRUPT;
self.p = VERIFY_ATTR_INTERRUPT_LOC - 1;
self.cp = VERIFY_ATTR_INTERRUPT_LOC;
}
debug_assert_eq!(self.heap[h].get_tag(), HeapCellValueTag::AttrVar);
@@ -122,7 +121,7 @@ impl MachineState {
let e = self.e;
let and_frame = self.stack.index_and_frame_mut(e);
for i in 1..arity + 1 {
for i in 1..=arity {
and_frame[i] = self.registers[i];
}