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stack2reg: Remove clone() using filters

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This commit is contained in:
CohenArthur 2020-08-23 18:16:36 +02:00
parent b0ea85fb83
commit eb6df58cdd
1 changed files with 11 additions and 14 deletions
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25
src/optimize/stack2reg.rs
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@ -312,22 +312,19 @@ 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;
for stack_slot_users in opt_ctx.stack_slot_usage_map.values_mut() {
for &inst in stack_slot_users.stack_addr.clone().iter() {
if stack_addr_load_insts_users.get(&inst).map(|users| users.is_empty()).unwrap_or(true) {
StackSlotUsage::remove_unused_stack_addr(&mut opt_ctx.ctx.func, inst);
stack_slot_users.stack_addr.remove(&inst);
}
}
stack_slot_users
.stack_addr
.iter()
.filter(|inst| stack_addr_load_insts_users.get(inst).map(|users| users.is_empty()).unwrap_or(true))
.for_each(|inst| StackSlotUsage::remove_unused_stack_addr(&mut func, *inst));
/*
for &inst in stack_slot_users.stack_load.clone().iter() {
if stack_addr_load_insts_users.get(&inst).map(|users| users.is_empty()).unwrap_or(true) {
StackSlotUsage::remove_unused_load(&mut opt_ctx.ctx.func, inst);
stack_slot_users.stack_load.remove(&inst);
}
}
*/
stack_slot_users
.stack_load
.iter()
.filter(|inst| stack_addr_load_insts_users.get(inst).map(|users| users.is_empty()).unwrap_or(true))
.for_each(|inst| StackSlotUsage::remove_unused_load(&mut func, *inst));
}
}