//! Translates the comparison operations.

use inkwell::values::BasicValue;

use crate::polkavm::context::Context;
use crate::polkavm::Dependency;

/// Translates the comparison operations.
/// There is not difference between the EVM and LLVM IR behaviors.
pub fn compare<'ctx, D>(
    context: &mut Context<'ctx, D>,
    operand_1: inkwell::values::IntValue<'ctx>,
    operand_2: inkwell::values::IntValue<'ctx>,
    operation: inkwell::IntPredicate,
) -> anyhow::Result<inkwell::values::BasicValueEnum<'ctx>>
where
    D: Dependency + Clone,
{
    let result = context.builder().build_int_compare(
        operation,
        operand_1,
        operand_2,
        "comparison_result",
    )?;
    let result = context.builder().build_int_z_extend_or_bit_cast(
        result,
        context.word_type(),
        "comparison_result_extended",
    )?;
    Ok(result.as_basic_value_enum())
}