ristretto_jit 0.19.0

JVM JIT Compiler
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

use crate::Result;
use crate::operand_stack::OperandStack;
use cranelift::frontend::FunctionBuilder;
use cranelift::prelude::{InstBuilder, types};

/// See: <https://docs.oracle.com/javase/specs/jvms/se24/html/jvms-6.html#jvms-6.5.bipush>
pub(crate) fn bipush(
    function_builder: &mut FunctionBuilder,
    stack: &mut OperandStack,
    value: i8,
) -> Result<()> {
    let value = i64::from(value);
    let value = function_builder.ins().iconst(types::I32, value);
    stack.push_int(function_builder, value)?;
    Ok(())
}

/// See: <https://docs.oracle.com/javase/specs/jvms/se24/html/jvms-6.html#jvms-6.5.sipush>
pub(crate) fn sipush(
    function_builder: &mut FunctionBuilder,
    stack: &mut OperandStack,
    value: i16,
) -> Result<()> {
    let value = i64::from(value);
    let value = function_builder.ins().iconst(types::I32, value);
    stack.push_int(function_builder, value)?;
    Ok(())
}