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remove_unused_stack_addr_and_stack_load: Remove clone()

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This commit is contained in:
CohenArthur 2020-08-23 15:00:09 +02:00
parent 18348b1aec
commit c62f433e46
1 changed files with 2 additions and 3 deletions
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5
src/optimize/stack2reg.rs
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@ -315,14 +315,13 @@ fn remove_unused_stack_addr_and_stack_load(opt_ctx: &mut OptimizeContext<'_>) {
// Replace all unused stack_addr and stack_load instructions with nop.
for stack_slot_users in opt_ctx.stack_slot_usage_map.values_mut() {
// FIXME remove clone
for &inst in stack_slot_users.stack_addr.clone().iter() {
while let Some(&inst) = stack_slot_users.stack_addr.iter().next() {
if stack_addr_load_insts_users.get(&inst).map(|users| users.is_empty()).unwrap_or(true) {
stack_slot_users.remove_unused_stack_addr(&mut opt_ctx.ctx.func, inst);
}
}
for &inst in stack_slot_users.stack_load.clone().iter() {
while let Some(&inst) = stack_slot_users.stack_load.iter().next() {
if stack_addr_load_insts_users.get(&inst).map(|users| users.is_empty()).unwrap_or(true) {
stack_slot_users.remove_unused_load(&mut opt_ctx.ctx.func, inst);
}