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zig/lib/std/target/sparc.zig
Andrew Kelley 84f1893c18
remove the concept of "sub-architecture" 
in favor of CPU features. Also rearrange the `std.Target`
data structure.

 * note: `@import("builtin")` was already deprecated in favor of
   `@import("std").builtin`.
 * `std.builtin.arch` is now deprecated in favor of
   `std.builtin.cpu.arch`.
 * `std.Target.CpuFeatures.Cpu` is now `std.Target.Cpu.Model`.
 * `std.Target.CpuFeatures` is now `std.Target.Cpu`.
 * `std.Target` no longer has an `arch` field. Instead it has a
   `cpu` field, which has `arch`, `model`, and `features`.
 * `std.Target` no longer has a `cpu_features` field.
 * `std.Target.Arch` is moved to `std.Target.Cpu.Arch` and
   it is an enum instead of a tagged union.
 * `std.Target.parseOs` is moved to `std.Target.Os.parse`.
 * `std.Target.parseAbi` is moved to `std.Target.Abi.parse`.
 * `std.Target.parseArchSub` is only for arch now and moved
    to `std.Target.Cpu.Arch.parse`.
 * `std.Target.parse` is improved to accept CPU name and features.
 * `std.Target.Arch.getBaselineCpuFeatures` is moved to
   `std.Target.Cpu.baseline`.
 * `std.Target.allCpus` is renamed to `std.Target.allCpuModels`.
 * `std.Target.defaultAbi` is moved to `std.Target.Abi.default`.
 * Significant cleanup of aarch64 and arm CPU features, resulting in
   the needed bit count for cpu feature set going from 174 to 138.
 * Add `std.Target.Cpu.Feature.Set.addFeatureSet` for merging
   feature sets together.

`-target-feature` and `-target-cpu` are removed in favor of
`-mcpu`, to conform to established conventions, and it gains
additional power to support cpu features. The syntax is:
-mcpu=name+on1+on2-off1-off2

closes #4261
2020-02-19 21:30:36 -05:00

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const std = @import("../std.zig");
const CpuFeature = std.Target.Cpu.Feature;
const CpuModel = std.Target.Cpu.Model;
pub const Feature = enum {
deprecated_v8,
detectroundchange,
fixallfdivsqrt,
hard_quad_float,
hasleoncasa,
hasumacsmac,
insertnopload,
leon,
leoncyclecounter,
leonpwrpsr,
no_fmuls,
no_fsmuld,
popc,
soft_float,
soft_mul_div,
v9,
vis,
vis2,
vis3,
};
pub usingnamespace CpuFeature.feature_set_fns(Feature);
pub const all_features = blk: {
const len = @typeInfo(Feature).Enum.fields.len;
std.debug.assert(len <= CpuFeature.Set.needed_bit_count);
var result: [len]CpuFeature = undefined;
result[@enumToInt(Feature.deprecated_v8)] = .{
.llvm_name = "deprecated-v8",
.description = "Enable deprecated V8 instructions in V9 mode",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.detectroundchange)] = .{
.llvm_name = "detectroundchange",
.description = "LEON3 erratum detection: Detects any rounding mode change request: use only the round-to-nearest rounding mode",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.fixallfdivsqrt)] = .{
.llvm_name = "fixallfdivsqrt",
.description = "LEON erratum fix: Fix FDIVS/FDIVD/FSQRTS/FSQRTD instructions with NOPs and floating-point store",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.hard_quad_float)] = .{
.llvm_name = "hard-quad-float",
.description = "Enable quad-word floating point instructions",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.hasleoncasa)] = .{
.llvm_name = "hasleoncasa",
.description = "Enable CASA instruction for LEON3 and LEON4 processors",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.hasumacsmac)] = .{
.llvm_name = "hasumacsmac",
.description = "Enable UMAC and SMAC for LEON3 and LEON4 processors",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.insertnopload)] = .{
.llvm_name = "insertnopload",
.description = "LEON3 erratum fix: Insert a NOP instruction after every single-cycle load instruction when the next instruction is another load/store instruction",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.leon)] = .{
.llvm_name = "leon",
.description = "Enable LEON extensions",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.leoncyclecounter)] = .{
.llvm_name = "leoncyclecounter",
.description = "Use the Leon cycle counter register",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.leonpwrpsr)] = .{
.llvm_name = "leonpwrpsr",
.description = "Enable the PWRPSR instruction",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.no_fmuls)] = .{
.llvm_name = "no-fmuls",
.description = "Disable the fmuls instruction.",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.no_fsmuld)] = .{
.llvm_name = "no-fsmuld",
.description = "Disable the fsmuld instruction.",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.popc)] = .{
.llvm_name = "popc",
.description = "Use the popc (population count) instruction",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.soft_float)] = .{
.llvm_name = "soft-float",
.description = "Use software emulation for floating point",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.soft_mul_div)] = .{
.llvm_name = "soft-mul-div",
.description = "Use software emulation for integer multiply and divide",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.v9)] = .{
.llvm_name = "v9",
.description = "Enable SPARC-V9 instructions",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.vis)] = .{
.llvm_name = "vis",
.description = "Enable UltraSPARC Visual Instruction Set extensions",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.vis2)] = .{
.llvm_name = "vis2",
.description = "Enable Visual Instruction Set extensions II",
.dependencies = featureSet(&[_]Feature{}),
};
result[@enumToInt(Feature.vis3)] = .{
.llvm_name = "vis3",
.description = "Enable Visual Instruction Set extensions III",
.dependencies = featureSet(&[_]Feature{}),
};
const ti = @typeInfo(Feature);
for (result) |*elem, i| {
elem.index = i;
elem.name = ti.Enum.fields[i].name;
}
break :blk result;
};
pub const cpu = struct {
pub const at697e = CpuModel{
.name = "at697e",
.llvm_name = "at697e",
.features = featureSet(&[_]Feature{
.insertnopload,
.leon,
}),
};
pub const at697f = CpuModel{
.name = "at697f",
.llvm_name = "at697f",
.features = featureSet(&[_]Feature{
.insertnopload,
.leon,
}),
};
pub const f934 = CpuModel{
.name = "f934",
.llvm_name = "f934",
.features = featureSet(&[_]Feature{}),
};
pub const generic = CpuModel{
.name = "generic",
.llvm_name = "generic",
.features = featureSet(&[_]Feature{}),
};
pub const gr712rc = CpuModel{
.name = "gr712rc",
.llvm_name = "gr712rc",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const gr740 = CpuModel{
.name = "gr740",
.llvm_name = "gr740",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.hasumacsmac,
.leon,
.leoncyclecounter,
.leonpwrpsr,
}),
};
pub const hypersparc = CpuModel{
.name = "hypersparc",
.llvm_name = "hypersparc",
.features = featureSet(&[_]Feature{}),
};
pub const leon2 = CpuModel{
.name = "leon2",
.llvm_name = "leon2",
.features = featureSet(&[_]Feature{
.leon,
}),
};
pub const leon3 = CpuModel{
.name = "leon3",
.llvm_name = "leon3",
.features = featureSet(&[_]Feature{
.hasumacsmac,
.leon,
}),
};
pub const leon4 = CpuModel{
.name = "leon4",
.llvm_name = "leon4",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.hasumacsmac,
.leon,
}),
};
pub const ma2080 = CpuModel{
.name = "ma2080",
.llvm_name = "ma2080",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const ma2085 = CpuModel{
.name = "ma2085",
.llvm_name = "ma2085",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const ma2100 = CpuModel{
.name = "ma2100",
.llvm_name = "ma2100",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const ma2150 = CpuModel{
.name = "ma2150",
.llvm_name = "ma2150",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const ma2155 = CpuModel{
.name = "ma2155",
.llvm_name = "ma2155",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const ma2450 = CpuModel{
.name = "ma2450",
.llvm_name = "ma2450",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const ma2455 = CpuModel{
.name = "ma2455",
.llvm_name = "ma2455",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const ma2480 = CpuModel{
.name = "ma2480",
.llvm_name = "ma2480",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const ma2485 = CpuModel{
.name = "ma2485",
.llvm_name = "ma2485",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const ma2x5x = CpuModel{
.name = "ma2x5x",
.llvm_name = "ma2x5x",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const ma2x8x = CpuModel{
.name = "ma2x8x",
.llvm_name = "ma2x8x",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const myriad2 = CpuModel{
.name = "myriad2",
.llvm_name = "myriad2",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const myriad2_1 = CpuModel{
.name = "myriad2_1",
.llvm_name = "myriad2.1",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const myriad2_2 = CpuModel{
.name = "myriad2_2",
.llvm_name = "myriad2.2",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const myriad2_3 = CpuModel{
.name = "myriad2_3",
.llvm_name = "myriad2.3",
.features = featureSet(&[_]Feature{
.hasleoncasa,
.leon,
}),
};
pub const niagara = CpuModel{
.name = "niagara",
.llvm_name = "niagara",
.features = featureSet(&[_]Feature{
.deprecated_v8,
.v9,
.vis,
.vis2,
}),
};
pub const niagara2 = CpuModel{
.name = "niagara2",
.llvm_name = "niagara2",
.features = featureSet(&[_]Feature{
.deprecated_v8,
.popc,
.v9,
.vis,
.vis2,
}),
};
pub const niagara3 = CpuModel{
.name = "niagara3",
.llvm_name = "niagara3",
.features = featureSet(&[_]Feature{
.deprecated_v8,
.popc,
.v9,
.vis,
.vis2,
}),
};
pub const niagara4 = CpuModel{
.name = "niagara4",
.llvm_name = "niagara4",
.features = featureSet(&[_]Feature{
.deprecated_v8,
.popc,
.v9,
.vis,
.vis2,
.vis3,
}),
};
pub const sparclet = CpuModel{
.name = "sparclet",
.llvm_name = "sparclet",
.features = featureSet(&[_]Feature{}),
};
pub const sparclite = CpuModel{
.name = "sparclite",
.llvm_name = "sparclite",
.features = featureSet(&[_]Feature{}),
};
pub const sparclite86x = CpuModel{
.name = "sparclite86x",
.llvm_name = "sparclite86x",
.features = featureSet(&[_]Feature{}),
};
pub const supersparc = CpuModel{
.name = "supersparc",
.llvm_name = "supersparc",
.features = featureSet(&[_]Feature{}),
};
pub const tsc701 = CpuModel{
.name = "tsc701",
.llvm_name = "tsc701",
.features = featureSet(&[_]Feature{}),
};
pub const ultrasparc = CpuModel{
.name = "ultrasparc",
.llvm_name = "ultrasparc",
.features = featureSet(&[_]Feature{
.deprecated_v8,
.v9,
.vis,
}),
};
pub const ultrasparc3 = CpuModel{
.name = "ultrasparc3",
.llvm_name = "ultrasparc3",
.features = featureSet(&[_]Feature{
.deprecated_v8,
.v9,
.vis,
.vis2,
}),
};
pub const ut699 = CpuModel{
.name = "ut699",
.llvm_name = "ut699",
.features = featureSet(&[_]Feature{
.fixallfdivsqrt,
.insertnopload,
.leon,
.no_fmuls,
.no_fsmuld,
}),
};
pub const v7 = CpuModel{
.name = "v7",
.llvm_name = "v7",
.features = featureSet(&[_]Feature{
.no_fsmuld,
.soft_mul_div,
}),
};
pub const v8 = CpuModel{
.name = "v8",
.llvm_name = "v8",
.features = featureSet(&[_]Feature{}),
};
pub const v9 = CpuModel{
.name = "v9",
.llvm_name = "v9",
.features = featureSet(&[_]Feature{
.v9,
}),
};
};
/// All sparc CPUs, sorted alphabetically by name.
/// TODO: Replace this with usage of `std.meta.declList`. It does work, but stage1
/// compiler has inefficient memory and CPU usage, affecting build times.
pub const all_cpus = &[_]*const CpuModel{
&cpu.at697e,
&cpu.at697f,
&cpu.f934,
&cpu.generic,
&cpu.gr712rc,
&cpu.gr740,
&cpu.hypersparc,
&cpu.leon2,
&cpu.leon3,
&cpu.leon4,
&cpu.ma2080,
&cpu.ma2085,
&cpu.ma2100,
&cpu.ma2150,
&cpu.ma2155,
&cpu.ma2450,
&cpu.ma2455,
&cpu.ma2480,
&cpu.ma2485,
&cpu.ma2x5x,
&cpu.ma2x8x,
&cpu.myriad2,
&cpu.myriad2_1,
&cpu.myriad2_2,
&cpu.myriad2_3,
&cpu.niagara,
&cpu.niagara2,
&cpu.niagara3,
&cpu.niagara4,
&cpu.sparclet,
&cpu.sparclite,
&cpu.sparclite86x,
&cpu.supersparc,
&cpu.tsc701,
&cpu.ultrasparc,
&cpu.ultrasparc3,
&cpu.ut699,
&cpu.v7,
&cpu.v8,
&cpu.v9,
};
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