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fix stack offset check

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This commit is contained in:
laizy 2019-06-08 15:03:56 +08:00
parent 5db8c13465
commit 8105c0c16f
1 changed files with 3 additions and 1 deletions
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4
lib/singlepass-backend/src/machine.rs
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@ -257,6 +257,7 @@ impl Machine {
pub fn release_locations_keep_state<E: Emitter>(&self, assembler: &mut E, locs: &[Location]) { pub fn release_locations_keep_state<E: Emitter>(&self, assembler: &mut E, locs: &[Location]) {
let mut delta_stack_offset: usize = 0; let mut delta_stack_offset: usize = 0;
let mut stack_offset = self.stack_offset.0;
for loc in locs.iter().rev() { for loc in locs.iter().rev() {
match *loc { match *loc {
@ -265,9 +266,10 @@ impl Machine {
unreachable!(); unreachable!();
} }
let offset = (-x) as usize; let offset = (-x) as usize;
if offset != self.stack_offset.0 { if offset != stack_offset {
unreachable!(); unreachable!();
} }
stack_offset -= 8;
delta_stack_offset += 8; delta_stack_offset += 8;
} }
_ => {} _ => {}