diff options
Diffstat (limited to 'src/optimize/stack2reg.rs')
| -rw-r--r-- | src/optimize/stack2reg.rs | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/src/optimize/stack2reg.rs b/src/optimize/stack2reg.rs index 7c0bd2710a6..b192a2ae832 100644 --- a/src/optimize/stack2reg.rs +++ b/src/optimize/stack2reg.rs @@ -389,27 +389,24 @@ fn remove_unused_stack_addr_and_stack_load(opt_ctx: &mut OptimizeContext<'_>) { // Replace all unused stack_addr and stack_load instructions with nop. let mut func = &mut opt_ctx.ctx.func; - // drain_filter() on hashbrown::HashSet drains the items that do *not* match the - // predicate. Once hashbrown gets updated to match the behaviour of std::drain_filter - // (0.8.2), the predicate will have to be reversed for stack_slot_users in opt_ctx.stack_slot_usage_map.values_mut() { stack_slot_users .stack_addr .drain_filter(|inst| { - !(stack_addr_load_insts_users + stack_addr_load_insts_users .get(inst) .map(|users| users.is_empty()) - .unwrap_or(true)) + .unwrap_or(true) }) .for_each(|inst| StackSlotUsage::remove_unused_stack_addr(&mut func, inst)); stack_slot_users .stack_load .drain_filter(|inst| { - !(stack_addr_load_insts_users + stack_addr_load_insts_users .get(inst) .map(|users| users.is_empty()) - .unwrap_or(true)) + .unwrap_or(true) }) .for_each(|inst| StackSlotUsage::remove_unused_load(&mut func, inst)); } |