775c674b38
* Only save callee-saved registers that are actually being used. * Rename AllocatableSet to RegisterSet * Style cleanup and small renames for readability. * Adjust x86 prologue-epilogue test to account for callee-saved register optimization. * Add more tests for prologue-epilogue optimizations.
27 lines
630 B
Rust
27 lines
630 B
Rust
//! ARM 64 ABI implementation.
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use super::registers::{FPR, GPR};
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use ir;
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use isa::RegClass;
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use regalloc::RegisterSet;
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use settings as shared_settings;
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/// Legalize `sig`.
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pub fn legalize_signature(
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_sig: &mut ir::Signature,
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_flags: &shared_settings::Flags,
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_current: bool,
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) {
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unimplemented!()
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}
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/// Get register class for a type appearing in a legalized signature.
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pub fn regclass_for_abi_type(ty: ir::Type) -> RegClass {
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if ty.is_int() { GPR } else { FPR }
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}
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/// Get the set of allocatable registers for `func`.
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pub fn allocatable_registers(_func: &ir::Function) -> RegisterSet {
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unimplemented!()
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}
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