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revise InstallVerifyAttrs to remove need for predicate scanning (#3175)

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This commit is contained in:
Mark Thom
2025-11-25 23:17:22 -08:00
parent f2e044e5b8
commit 4bd16b8a2e
5 changed files with 2227 additions and 1885 deletions
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6
src/machine/attributed_variables.rs
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@@ -41,13 +41,13 @@ 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);