rishi/scryer-prolog
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use Addr::StackCell(0,0) to indicate non-live local variables

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This commit is contained in:
Mark Thom
2019-12-12 20:34:50 -07:00
parent 02d8b1441d
commit a4e352ba0d
1 changed files with 2 additions and 2 deletions
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4
src/prolog/machine/stack.rs
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@@ -242,7 +242,7 @@ impl Stack {
for idx in 0 .. num_cells { for idx in 0 .. num_cells {
let offset = prelude_size::<AndFramePrelude>() + idx * mem::size_of::<Addr>(); let offset = prelude_size::<AndFramePrelude>() + idx * mem::size_of::<Addr>();
ptr::write((self.top as usize + offset) as *mut Addr, Addr::HeapCell(0)); ptr::write((self.top as usize + offset) as *mut Addr, Addr::StackCell(0,0));
} }
let and_frame = &mut *(self.top as *mut AndFrame); let and_frame = &mut *(self.top as *mut AndFrame);
@@ -264,7 +264,7 @@ impl Stack {
for idx in 0 .. num_cells { for idx in 0 .. num_cells {
let offset = prelude_size::<OrFramePrelude>() + idx * mem::size_of::<Addr>(); let offset = prelude_size::<OrFramePrelude>() + idx * mem::size_of::<Addr>();
ptr::write((self.top as usize + offset) as *mut Addr, Addr::HeapCell(0)); ptr::write((self.top as usize + offset) as *mut Addr, Addr::StackCell(0,0));
} }
let or_frame = &mut *(self.top as *mut OrFrame); let or_frame = &mut *(self.top as *mut OrFrame);