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//! Define supported ISAs; includes ISA-specific instructions, encodings, registers, settings, etc.
use crate::cdsl::isa::TargetIsa;
use crate::shared::Definitions as SharedDefinitions;
use std::fmt;
mod arm32;
mod arm64;
mod riscv;
pub(crate) mod x86;
/// Represents known ISA target.
#[derive(PartialEq, Copy, Clone)]
pub enum Isa {
Riscv,
X86,
Arm32,
Arm64,
}
impl Isa {
/// Creates isa target using name.
pub fn from_name(name: &str) -> Option<Self> {
Isa::all()
.iter()
.cloned()
.find(|isa| isa.to_string() == name)
}
/// Creates isa target from arch.
pub fn from_arch(arch: &str) -> Option<Self> {
match arch {
"riscv" => Some(Isa::Riscv),
"aarch64" => Some(Isa::Arm64),
x if ["x86_64", "i386", "i586", "i686"].contains(&x) => Some(Isa::X86),
x if x.starts_with("arm") || arch.starts_with("thumb") => Some(Isa::Arm32),
_ => None,
}
}
/// Returns all supported isa targets.
pub fn all() -> &'static [Isa] {
&[Isa::Riscv, Isa::X86, Isa::Arm32, Isa::Arm64]
}
}
impl fmt::Display for Isa {
// These names should be kept in sync with the crate features.
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Isa::Riscv => write!(f, "riscv"),
Isa::X86 => write!(f, "x86"),
Isa::Arm32 => write!(f, "arm32"),
Isa::Arm64 => write!(f, "arm64"),
}
}
}
pub(crate) fn define(isas: &[Isa], shared_defs: &mut SharedDefinitions) -> Vec<TargetIsa> {
isas.iter()
.map(|isa| match isa {
Isa::Riscv => riscv::define(shared_defs),
Isa::X86 => x86::define(shared_defs),
Isa::Arm32 => arm32::define(shared_defs),
Isa::Arm64 => arm64::define(shared_defs),
})
.collect()
}
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