71768bb6cf
This PR updates the AArch64 ABI implementation so that it (i) properly respects that v8-v15 inclusive have callee-save lower halves, and caller-save upper halves, by conservatively approximating (to full registers) in the appropriate directions when generating prologue caller-saves and when informing the regalloc of clobbered regs across callsites. In order to prevent saving all of these vector registers in the prologue of every non-leaf function due to the above approximation, this also makes use of a new regalloc.rs feature to exclude call instructions' writes from the clobber set returned by register allocation. This is safe whenever the caller and callee have the same ABI (because anything the callee could clobber, the caller is allowed to clobber as well without saving it in the prologue). Fixes #2254.
95 lines
3.5 KiB
TOML
95 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 = "0.67.0"
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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 = "0.67.0" }
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cranelift-entity = { path = "../entity", version = "0.67.0" }
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cranelift-bforest = { path = "../bforest", version = "0.67.0" }
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hashbrown = { version = "0.7", optional = true }
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target-lexicon = "0.11"
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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 = "0.22.0", default-features = false, features = ["write"], optional = true }
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smallvec = { version = "1.0.0" }
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thiserror = "1.0.4"
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byteorder = { version = "1.3.2", default-features = false }
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peepmatic = { path = "../peepmatic", optional = true, version = "0.67.0" }
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peepmatic-traits = { path = "../peepmatic/crates/traits", optional = true, version = "0.67.0" }
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peepmatic-runtime = { path = "../peepmatic/crates/runtime", optional = true, version = "0.67.0" }
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regalloc = { version = "0.0.31" }
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souper-ir = { version = "1", optional = true }
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wast = { version = "25.0.0", 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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[build-dependencies]
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cranelift-codegen-meta = { path = "meta", version = "0.67.0" }
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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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riscv = []
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x64 = [] # New work-in-progress codegen backend for x86_64 based on the new isel.
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arm32 = [] # Work-in-progress codegen backend for ARM.
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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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"riscv"
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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 = ["serde"]
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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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# Recompile our optimizations that are written in the `peepmatic` DSL into a
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# compact finite-state transducer automaton.
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rebuild-peephole-optimizers = ["peepmatic", "peepmatic-traits", "wast"]
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# Enable the use of `peepmatic`-generated peephole optimizers.
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enable-peepmatic = ["peepmatic-runtime", "peepmatic-traits", "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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[badges]
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maintenance = { status = "experimental" }
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