d2d0a0f36b
Peepmatic was an early attempt at a DSL for peephole optimizations, with the idea that maybe sometime in the future we could user it for instruction selection as well. It didn't really pan out, however: * Peepmatic wasn't quite flexible enough, and adding new operators or snippets of code implemented externally in Rust was a bit of a pain. * The performance was never competitive with the hand-written peephole optimizers. It was *very* size efficient, but that came at the cost of run-time efficiency. Everything was table-based and interpreted, rather than generating any Rust code. Ultimately, because of these reasons, we never turned Peepmatic on by default. These days, we just landed the ISLE domain-specific language, and it is better suited than Peepmatic for all the things that Peepmatic was originally designed to do. It is more flexible and easy to integrate with external Rust code. It is has better time efficiency, meeting or even beating hand-written code. I think a small part of the reason why ISLE excels in these things is because its design was informed by Peepmatic's failures. I still plan on continuing Peepmatic's mission to make Cranelift's peephole optimizer passes generated from DSL rewrite rules, but using ISLE instead of Peepmatic. Thank you Peepmatic, rest in peace!
106 lines
3.5 KiB
TOML
106 lines
3.5 KiB
TOML
[package]
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authors = ["The Cranelift Project Developers"]
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name = "cranelift-codegen"
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version = "0.78.0"
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description = "Low-level code generator library"
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license = "Apache-2.0 WITH LLVM-exception"
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documentation = "https://docs.rs/cranelift-codegen"
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repository = "https://github.com/bytecodealliance/wasmtime"
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categories = ["no-std"]
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readme = "README.md"
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keywords = ["compile", "compiler", "jit"]
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build = "build.rs"
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edition = "2018"
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[dependencies]
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cranelift-codegen-shared = { path = "./shared", version = "0.78.0" }
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cranelift-entity = { path = "../entity", version = "0.78.0" }
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cranelift-bforest = { path = "../bforest", version = "0.78.0" }
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hashbrown = { version = "0.9.1", optional = true }
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target-lexicon = "0.12"
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log = { version = "0.4.6", default-features = false }
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serde = { version = "1.0.94", features = ["derive"], optional = true }
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bincode = { version = "1.2.1", optional = true }
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gimli = { version = "0.25.0", default-features = false, features = ["write"], optional = true }
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smallvec = { version = "1.6.1" }
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regalloc = { version = "0.0.32" }
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souper-ir = { version = "2.1.0", optional = true }
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# It is a goal of the cranelift-codegen crate to have minimal external dependencies.
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# Please don't add any unless they are essential to the task of creating binary
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# machine code. Integration tests that need external dependencies can be
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# accomodated in `tests`.
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[dev-dependencies]
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criterion = "0.3"
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[build-dependencies]
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cranelift-codegen-meta = { path = "meta", version = "0.78.0" }
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isle = { path = "../isle/isle", version = "0.78.0", optional = true }
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miette = { version = "3", features = ["fancy"] }
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sha2 = "0.9.8"
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[features]
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default = ["std", "unwind"]
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# The "std" feature enables use of libstd. The "core" feature enables use
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# of some minimal std-like replacement libraries. At least one of these two
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# features need to be enabled.
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std = []
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# The "core" features enables use of "hashbrown" since core doesn't have
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# a HashMap implementation, and a workaround for Cargo #4866.
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core = ["hashbrown"]
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# This enables some additional functions useful for writing tests, but which
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# can significantly increase the size of the library.
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testing_hooks = []
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# This enables unwind info generation functionality.
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unwind = ["gimli"]
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# ISA targets for which we should build.
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# If no ISA targets are explicitly enabled, the ISA target for the host machine is enabled.
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x86 = []
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arm64 = []
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s390x = []
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arm32 = [] # Work-in-progress codegen backend for ARM.
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# Stub feature that does nothing, for Cargo-features compatibility: the new
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# backend is the default now.
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experimental_x64 = []
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# Option to enable all architectures.
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all-arch = [
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"x86",
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"arm64",
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"s390x"
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]
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# For dependent crates that want to serialize some parts of cranelift
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enable-serde = [
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"serde",
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"regalloc/enable-serde",
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"cranelift-entity/enable-serde",
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]
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# Allow snapshotting regalloc test cases. Useful only to report bad register
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# allocation failures, or for regalloc.rs developers.
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regalloc-snapshot = ["bincode", "regalloc/enable-serde"]
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# Enable support for the Souper harvester.
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souper-harvest = ["souper-ir", "souper-ir/stringify"]
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# Recompile ISLE DSL source files into their generated Rust code.
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rebuild-isle = ["isle", "cranelift-codegen-meta/rebuild-isle"]
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# A hack to skip the ISLE-rebuild logic when testing for determinism
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# with the "Meta deterministic check" CI job.
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completely-skip-isle-for-ci-deterministic-check = []
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[badges]
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maintenance = { status = "experimental" }
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[[bench]]
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name = "x64-evex-encoding"
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harness = false
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