luaur-code-gen 0.1.0

use crate::enums::ir_cmd::IrCmd;
use crate::functions::kill_ir_utils::kill_ir_function_ir_inst;
use crate::macros::codegen_assert::CODEGEN_ASSERT;
use crate::records::ir_function::IrFunction;
use crate::records::ir_inst::IrInst;

pub fn kill_ir_function_u32_u32(function: &mut IrFunction, start: u32, end: u32) {
    // Kill instructions in reverse order to avoid killing instructions that are still marked as used
    let mut i = end as i64;
    while i >= start as i64 {
        CODEGEN_ASSERT!((i as usize) < function.instructions.len());
        let curr: *mut IrInst = &mut function.instructions[i as usize];

        if unsafe { (*curr).cmd } == IrCmd::NOP {
            i -= 1;
            continue;
        }

        // Do not force destruction of instructions that are still in use
        // When the operands are released, the instruction will be released automatically
        if unsafe { (*curr).use_count } != 0 {
            i -= 1;
            continue;
        }

        kill_ir_function_ir_inst(function, unsafe { &mut *curr });
        i -= 1;
    }
}