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[meta] Introduce the InstructionGroupBuilder;

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This follows the rest of the code base data structures, where we have a
mutable data structure builder; once the data structure is constructed,
it's immutable.

This also makes the definition of instructions easier, and it paves the
way for defining immediate variants.
This commit is contained in:
Benjamin Bouvier
2019-04-30 18:33:01 +02:00
parent feb90e376a
commit d9277f249b
7 changed files with 251 additions and 382 deletions
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9
cranelift/codegen/meta/src/isa/arm64/mod.rs
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@@ -1,5 +1,5 @@
use crate::cdsl::cpu_modes::CpuMode;
use crate::cdsl::instructions::InstructionGroup;
use crate::cdsl::instructions::InstructionGroupBuilder;
use crate::cdsl::isa::TargetIsa;
use crate::cdsl::regs::{IsaRegs, IsaRegsBuilder, RegBankBuilder, RegClassBuilder};
use crate::cdsl::settings::{SettingGroup, SettingGroupBuilder};
@@ -48,7 +48,12 @@ pub fn define(shared_defs: &mut SharedDefinitions) -> TargetIsa {
let settings = define_settings(&shared_defs.settings);
let regs = define_registers();
let inst_group = InstructionGroup::new("arm64", "arm64 specific instruction set");
let inst_group = InstructionGroupBuilder::new(
"arm64",
"arm64 specific instruction set",
&shared_defs.format_registry,
)
.finish();
let mut a64 = CpuMode::new("A64");