abf157bd69
Before this patch, running the x64 new backend would require both
compiling with --features experimental_x64 and running with
`use_new_backend`.
This patches changes this behavior so that the runtime flag is not
needed anymore: using the feature flag will enforce usage of the new
backend everywhere, making using and testing it much simpler:
cargo run --features experimental_x64 ;; other CLI options/flags
This also gives a hint at what the meta language generation would look
like after switching to the new backend.
Compiling only with the x64 codegen flag gives a nice compile time speedup.
68 lines
1.9 KiB
Rust
68 lines
1.9 KiB
Rust
//! Define supported ISAs; includes ISA-specific instructions, encodings, registers, settings, etc.
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use crate::cdsl::isa::TargetIsa;
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use crate::shared::Definitions as SharedDefinitions;
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use std::fmt;
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mod arm32;
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mod arm64;
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mod riscv;
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pub(crate) mod x86;
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/// Represents known ISA target.
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#[derive(PartialEq, Copy, Clone)]
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pub enum Isa {
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Riscv,
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X86,
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Arm32,
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Arm64,
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}
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impl Isa {
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/// Creates isa target using name.
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pub fn from_name(name: &str) -> Option<Self> {
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Isa::all()
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.iter()
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.cloned()
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.find(|isa| isa.to_string() == name)
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}
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/// Creates isa target from arch.
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pub fn from_arch(arch: &str) -> Option<Self> {
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match arch {
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"riscv" => Some(Isa::Riscv),
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"aarch64" => Some(Isa::Arm64),
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x if ["x86_64", "i386", "i586", "i686"].contains(&x) => Some(Isa::X86),
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x if x.starts_with("arm") || arch.starts_with("thumb") => Some(Isa::Arm32),
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_ => None,
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}
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}
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/// Returns all supported isa targets.
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pub fn all() -> &'static [Isa] {
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&[Isa::Riscv, Isa::X86, Isa::Arm32, Isa::Arm64]
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}
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}
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impl fmt::Display for Isa {
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// These names should be kept in sync with the crate features.
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match *self {
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Isa::Riscv => write!(f, "riscv"),
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Isa::X86 => write!(f, "x86"),
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Isa::Arm32 => write!(f, "arm32"),
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Isa::Arm64 => write!(f, "arm64"),
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}
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}
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}
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pub(crate) fn define(isas: &[Isa], shared_defs: &mut SharedDefinitions) -> Vec<TargetIsa> {
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isas.iter()
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.map(|isa| match isa {
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Isa::Riscv => riscv::define(shared_defs),
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Isa::X86 => x86::define(shared_defs),
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Isa::Arm32 => arm32::define(shared_defs),
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Isa::Arm64 => arm64::define(shared_defs),
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})
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.collect()
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}
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