1141169ff8
* aarch64: Initial work to transition backend to ISLE This commit is what is hoped to be the initial commit towards migrating the aarch64 backend to ISLE. There's seemingly a lot of changes here but it's intended to largely be code motion. The current thinking is to closely follow the x64 backend for how all this is handled and organized. Major changes in this PR are: * The `Inst` enum is now defined in ISLE. This avoids having to define it in two places (once in Rust and once in ISLE). I've preserved all the comments in the ISLE and otherwise this isn't actually a functional change from the Rust perspective, it's still the same enum according to Rust. * Lots of little enums and things were moved to ISLE as well. As with `Inst` their definitions didn't change, only where they're defined. This will give future ISLE PRs access to all these operations. * Initial code for lowering `iconst`, `null`, and `bconst` are implemented. Ironically none of this is actually used right now because constant lowering is handled in `put_input_in_regs` which specially handles constants. Nonetheless I wanted to get at least something simple working which shows off how to special case various things that are specific to AArch64. In a future PR I plan to hook up const-lowering in ISLE to this path so even though `iconst`-the-clif-instruction is never lowered this should use the const lowering defined in ISLE rather than elsewhere in the backend (eventually leading to the deletion of the non-ISLE lowering). * The `IsleContext` skeleton is created and set up for future additions. * Some code for ISLE that's shared across all backends now lives in `isle_prelude_methods!()` and is deduplicated between the AArch64 backend and the x64 backend. * Register mapping is tweaked to do the same thing for AArch64 that it does for x64. Namely mapping virtual registers is supported instead of just virtual to machine registers. My main goal with this PR was to get AArch64 into a place where new instructions can be added with relative ease. Additionally I'm hoping to figure out as part of this change how much to share for ISLE between AArch64 and x64 (and other backends). * Don't use priorities with rules * Update .gitattributes with concise syntax * Deduplicate some type definitions * Rebuild ISLE * Move isa::isle to machinst::isle
120 lines
3.5 KiB
Rust
120 lines
3.5 KiB
Rust
//! Cranelift code generation library.
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#![deny(missing_docs, trivial_numeric_casts, unused_extern_crates)]
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#![warn(unused_import_braces)]
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#![cfg_attr(feature = "std", deny(unstable_features))]
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#![cfg_attr(feature = "clippy", plugin(clippy(conf_file = "../../clippy.toml")))]
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#![cfg_attr(feature="cargo-clippy", allow(
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// Produces only a false positive:
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clippy::while_let_loop,
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// Produces many false positives, but did produce some valid lints, now fixed:
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clippy::needless_lifetimes,
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// Generated code makes some style transgressions, but readability doesn't suffer much:
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clippy::many_single_char_names,
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clippy::identity_op,
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clippy::needless_borrow,
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clippy::cast_lossless,
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clippy::unreadable_literal,
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clippy::assign_op_pattern,
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clippy::empty_line_after_outer_attr,
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// Hard to avoid in generated code:
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clippy::cognitive_complexity,
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clippy::too_many_arguments,
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// Code generator doesn't have a way to collapse identical arms:
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clippy::match_same_arms,
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// These are relatively minor style issues, but would be easy to fix:
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clippy::new_without_default,
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clippy::should_implement_trait,
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clippy::len_without_is_empty))]
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#![cfg_attr(
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feature = "cargo-clippy",
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warn(
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clippy::float_arithmetic,
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clippy::mut_mut,
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clippy::nonminimal_bool,
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clippy::map_unwrap_or,
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clippy::unicode_not_nfc,
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clippy::use_self
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)
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)]
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#![no_std]
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// Various bits and pieces of this crate might only be used for one platform or
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// another, but it's not really too useful to learn about that all the time. On
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// CI we build at least one version of this crate with `--features all-arch`
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// which means we'll always detect truly dead code, otherwise if this is only
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// built for one platform we don't have to worry too much about trimming
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// everything down.
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#![cfg_attr(not(feature = "all-arch"), allow(dead_code))]
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#[allow(unused_imports)] // #[macro_use] is required for no_std
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#[macro_use]
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extern crate alloc;
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#[cfg(feature = "std")]
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#[macro_use]
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extern crate std;
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#[cfg(not(feature = "std"))]
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use hashbrown::{hash_map, HashMap, HashSet};
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#[cfg(feature = "std")]
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use std::collections::{hash_map, HashMap, HashSet};
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pub use crate::context::Context;
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pub use crate::value_label::{ValueLabelsRanges, ValueLocRange};
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pub use crate::verifier::verify_function;
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pub use crate::write::write_function;
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pub use cranelift_bforest as bforest;
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pub use cranelift_entity as entity;
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#[cfg(feature = "unwind")]
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pub use gimli;
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#[macro_use]
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mod machinst;
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pub mod binemit;
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pub mod cfg_printer;
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pub mod cursor;
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pub mod data_value;
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pub mod dbg;
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pub mod dominator_tree;
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pub mod flowgraph;
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pub mod ir;
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pub mod isa;
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pub mod loop_analysis;
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pub mod print_errors;
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pub mod settings;
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pub mod timing;
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pub mod verifier;
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pub mod write;
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pub use crate::entity::packed_option;
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pub use crate::machinst::buffer::MachSrcLoc;
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pub use crate::machinst::TextSectionBuilder;
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mod bitset;
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mod constant_hash;
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mod context;
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mod dce;
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mod divconst_magic_numbers;
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mod fx;
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mod inst_predicates;
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mod iterators;
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mod legalizer;
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mod licm;
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mod log;
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mod nan_canonicalization;
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mod remove_constant_phis;
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mod result;
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mod scoped_hash_map;
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mod simple_gvn;
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mod simple_preopt;
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mod unreachable_code;
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mod value_label;
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#[cfg(feature = "souper-harvest")]
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mod souper_harvest;
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pub use crate::result::{CodegenError, CodegenResult};
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include!(concat!(env!("OUT_DIR"), "/version.rs"));
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