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[meta] Add CPU modes to the meta crate;

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This commit is contained in:
Benjamin Bouvier
2019-04-18 18:22:43 +02:00
parent d00e42ede3
commit 1f21349c4b
7 changed files with 210 additions and 6 deletions
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15
cranelift/codegen/meta/src/isa/arm32/mod.rs
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@@ -1,7 +1,9 @@
use crate::cdsl::cpu_modes::CpuMode;
use crate::cdsl::inst::InstructionGroup;
use crate::cdsl::isa::TargetIsa;
use crate::cdsl::regs::{IsaRegs, IsaRegsBuilder, RegBankBuilder, RegClassBuilder};
use crate::cdsl::settings::{SettingGroup, SettingGroupBuilder};
use crate::shared::Definitions as SharedDefinitions;
fn define_settings(_shared: &SettingGroup) -> SettingGroup {
@@ -52,5 +54,16 @@ pub fn define(shared_defs: &mut SharedDefinitions) -> TargetIsa {
let inst_group = InstructionGroup::new("arm32", "arm32 specific instruction set");
TargetIsa::new("arm32", inst_group, settings, regs)
// CPU modes for 32-bit ARM and Thumb2.
let mut a32 = CpuMode::new("A32");
let mut t32 = CpuMode::new("T32");
// TODO refine these.
let narrow = shared_defs.transform_groups.by_name("narrow");
a32.legalize_default(narrow);
t32.legalize_default(narrow);
let cpu_modes = vec![a32, t32];
TargetIsa::new("arm32", inst_group, settings, regs, cpu_modes)
}