1394 lines
41 KiB
Zig
1394 lines
41 KiB
Zig
const std = @import("std");
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const builtin = @import("builtin");
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const fs = std.fs;
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const mem = std.mem;
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const json = std.json;
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const assert = std.debug.assert;
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// All references to other features are based on "zig name" as the key.
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const FeatureOverride = struct {
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llvm_name: []const u8,
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/// If true, completely omit the feature; as if it does not exist.
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omit: bool = false,
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/// If true, omit the feature, but all the dependencies of the feature
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/// are added in its place.
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flatten: bool = false,
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zig_name: ?[]const u8 = null,
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desc: ?[]const u8 = null,
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extra_deps: []const []const u8 = &.{},
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};
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const Cpu = struct {
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llvm_name: ?[]const u8,
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zig_name: []const u8,
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features: []const []const u8,
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};
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const Feature = struct {
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llvm_name: ?[]const u8 = null,
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zig_name: []const u8,
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desc: []const u8,
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deps: []const []const u8,
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flatten: bool = false,
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};
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const LlvmTarget = struct {
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zig_name: []const u8,
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llvm_name: []const u8,
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td_name: []const u8,
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feature_overrides: []const FeatureOverride = &.{},
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extra_cpus: []const Cpu = &.{},
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extra_features: []const Feature = &.{},
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branch_quota: ?usize = null,
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};
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const llvm_targets = [_]LlvmTarget{
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.{
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.zig_name = "aarch64",
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.llvm_name = "AArch64",
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.td_name = "AArch64.td",
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.branch_quota = 2000,
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.feature_overrides = &.{
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.{
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.llvm_name = "v8a",
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.extra_deps = &.{ "fp_armv8", "neon" },
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},
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.{
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.llvm_name = "CONTEXTIDREL2",
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.zig_name = "contextidr_el2",
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.desc = "Enable RW operand Context ID Register (EL2)",
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},
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.{
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.llvm_name = "neoversee1",
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.flatten = true,
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},
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.{
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.llvm_name = "neoversen1",
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.flatten = true,
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},
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.{
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.llvm_name = "neoversen2",
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.flatten = true,
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},
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.{
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.llvm_name = "neoversev1",
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.flatten = true,
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},
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.{
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.llvm_name = "neoverse512tvb",
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.flatten = true,
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},
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.{
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.llvm_name = "exynosm3",
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.zig_name = "exynos_m3",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "exynosm4",
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.zig_name = "exynos_m4",
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},
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.{
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.llvm_name = "v8.1a",
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "a35",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "a53",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "a55",
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.flatten = true,
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},
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.{
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.llvm_name = "a57",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "a64fx",
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.flatten = true,
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},
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.{
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.llvm_name = "a72",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "a73",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "a75",
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.flatten = true,
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},
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.{
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.llvm_name = "a77",
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.flatten = true,
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},
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.{
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.llvm_name = "apple-a7",
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.flatten = true,
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},
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.{
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.llvm_name = "apple-a10",
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.flatten = true,
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},
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.{
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.llvm_name = "apple-a11",
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.flatten = true,
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},
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.{
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.llvm_name = "apple-a12",
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.flatten = true,
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},
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.{
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.llvm_name = "apple-a13",
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.flatten = true,
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},
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.{
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.llvm_name = "apple-a14",
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.flatten = true,
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},
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.{
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.llvm_name = "apple-a7-sysreg",
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.flatten = true,
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},
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.{
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.llvm_name = "carmel",
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.flatten = true,
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},
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.{
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.llvm_name = "cortex-a78",
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.flatten = true,
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},
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.{
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.llvm_name = "cortex-x1",
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.flatten = true,
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},
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.{
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.llvm_name = "cortex-x2",
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.flatten = true,
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},
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.{
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.llvm_name = "falkor",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "kryo",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "saphira",
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.flatten = true,
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},
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.{
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.llvm_name = "thunderx",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "thunderx2t99",
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.flatten = true,
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},
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.{
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.llvm_name = "thunderx3t110",
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.flatten = true,
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},
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.{
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.llvm_name = "thunderxt81",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "thunderxt83",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "thunderxt88",
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.flatten = true,
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.extra_deps = &.{"v8a"},
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},
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.{
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.llvm_name = "tsv110",
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.flatten = true,
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},
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.{
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.llvm_name = "ampere1",
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.flatten = true,
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},
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},
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.extra_cpus = &.{
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.{
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.llvm_name = null,
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.zig_name = "exynos_m1",
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.features = &.{
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"crc",
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"crypto",
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"exynos_cheap_as_move",
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"force_32bit_jump_tables",
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"fuse_aes",
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"perfmon",
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"slow_misaligned_128store",
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"slow_paired_128",
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"use_postra_scheduler",
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"use_reciprocal_square_root",
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"v8a",
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},
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},
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.{
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.llvm_name = null,
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.zig_name = "exynos_m2",
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.features = &.{
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"crc",
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"crypto",
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"exynos_cheap_as_move",
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"force_32bit_jump_tables",
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"fuse_aes",
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"perfmon",
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"slow_misaligned_128store",
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"slow_paired_128",
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"use_postra_scheduler",
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"v8a",
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},
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},
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.{
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.llvm_name = null,
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.zig_name = "xgene1",
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.features = &.{
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"fp_armv8",
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"neon",
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"perfmon",
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"v8a",
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},
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},
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.{
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.llvm_name = null,
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.zig_name = "emag",
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.features = &.{
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"crc",
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"crypto",
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"fp_armv8",
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"neon",
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"perfmon",
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"v8a",
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},
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},
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},
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},
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.{
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.zig_name = "amdgpu",
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.llvm_name = "AMDGPU",
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.td_name = "AMDGPU.td",
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.feature_overrides = &.{
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.{
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.llvm_name = "DumpCode",
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.omit = true,
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},
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.{
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.llvm_name = "dumpcode",
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.omit = true,
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},
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},
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},
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.{
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.zig_name = "arc",
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.llvm_name = "ARC",
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.td_name = "ARC.td",
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},
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.{
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|
.zig_name = "arm",
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|
.llvm_name = "ARM",
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|
.td_name = "ARM.td",
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|
.branch_quota = 10000,
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.extra_cpus = &.{
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|
.{
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|
.llvm_name = "generic",
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|
.zig_name = "baseline",
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|
.features = &.{"v7a"},
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},
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.{
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|
.llvm_name = null,
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|
.zig_name = "exynos_m1",
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.features = &.{ "v8a", "exynos" },
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|
},
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|
.{
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|
.llvm_name = null,
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|
.zig_name = "exynos_m2",
|
|
.features = &.{ "v8a", "exynos" },
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|
},
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|
},
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|
.feature_overrides = &.{
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|
.{
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|
.llvm_name = "cortex-a78",
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|
.flatten = true,
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|
},
|
|
.{
|
|
.llvm_name = "cortex-a710",
|
|
.flatten = true,
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|
},
|
|
.{
|
|
.llvm_name = "cortex-x1c",
|
|
.flatten = true,
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|
},
|
|
.{
|
|
.llvm_name = "r5",
|
|
.flatten = true,
|
|
},
|
|
.{
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|
.llvm_name = "r52",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "r7",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "m7",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "krait",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "kryo",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "cortex-x1",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "neoverse-v1",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a5",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a7",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a8",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a9",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a12",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a15",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a17",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a32",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a35",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a53",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a55",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a57",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a72",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a73",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a75",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a77",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "a78c",
|
|
.flatten = true,
|
|
},
|
|
.{
|
|
.llvm_name = "armv2",
|
|
.zig_name = "v2",
|
|
.extra_deps = &.{"strict_align"},
|
|
},
|
|
.{
|
|
.llvm_name = "armv2a",
|
|
.zig_name = "v2a",
|
|
.extra_deps = &.{"strict_align"},
|
|
},
|
|
.{
|
|
.llvm_name = "armv3",
|
|
.zig_name = "v3",
|
|
.extra_deps = &.{"strict_align"},
|
|
},
|
|
.{
|
|
.llvm_name = "armv3m",
|
|
.zig_name = "v3m",
|
|
.extra_deps = &.{"strict_align"},
|
|
},
|
|
.{
|
|
.llvm_name = "armv4",
|
|
.zig_name = "v4",
|
|
.extra_deps = &.{"strict_align"},
|
|
},
|
|
.{
|
|
.llvm_name = "armv4t",
|
|
.zig_name = "v4t",
|
|
.extra_deps = &.{"strict_align"},
|
|
},
|
|
.{
|
|
.llvm_name = "armv5t",
|
|
.zig_name = "v5t",
|
|
.extra_deps = &.{"strict_align"},
|
|
},
|
|
.{
|
|
.llvm_name = "armv5te",
|
|
.zig_name = "v5te",
|
|
.extra_deps = &.{"strict_align"},
|
|
},
|
|
.{
|
|
.llvm_name = "armv5tej",
|
|
.zig_name = "v5tej",
|
|
.extra_deps = &.{"strict_align"},
|
|
},
|
|
.{
|
|
.llvm_name = "armv6",
|
|
.zig_name = "v6",
|
|
},
|
|
.{
|
|
.llvm_name = "armv6-m",
|
|
.zig_name = "v6m",
|
|
},
|
|
.{
|
|
.llvm_name = "armv6j",
|
|
.zig_name = "v6j",
|
|
},
|
|
.{
|
|
.llvm_name = "armv6k",
|
|
.zig_name = "v6k",
|
|
},
|
|
.{
|
|
.llvm_name = "armv6kz",
|
|
.zig_name = "v6kz",
|
|
},
|
|
.{
|
|
.llvm_name = "armv6s-m",
|
|
.zig_name = "v6sm",
|
|
},
|
|
.{
|
|
.llvm_name = "armv6t2",
|
|
.zig_name = "v6t2",
|
|
},
|
|
.{
|
|
.llvm_name = "armv7-a",
|
|
.zig_name = "v7a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv7-m",
|
|
.zig_name = "v7m",
|
|
},
|
|
.{
|
|
.llvm_name = "armv7-r",
|
|
.zig_name = "v7r",
|
|
},
|
|
.{
|
|
.llvm_name = "armv7e-m",
|
|
.zig_name = "v7em",
|
|
},
|
|
.{
|
|
.llvm_name = "armv7k",
|
|
.zig_name = "v7k",
|
|
},
|
|
.{
|
|
.llvm_name = "armv7s",
|
|
.zig_name = "v7s",
|
|
},
|
|
.{
|
|
.llvm_name = "armv7ve",
|
|
.zig_name = "v7ve",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8.1-a",
|
|
.zig_name = "v8_1a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8.1-m.main",
|
|
.zig_name = "v8_1m_main",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8.2-a",
|
|
.zig_name = "v8_2a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8.3-a",
|
|
.zig_name = "v8_3a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8.4-a",
|
|
.zig_name = "v8_4a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8.5-a",
|
|
.zig_name = "v8_5a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8.6-a",
|
|
.zig_name = "v8_6a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8.7-a",
|
|
.zig_name = "v8_7a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8.8-a",
|
|
.zig_name = "v8_8a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8-a",
|
|
.zig_name = "v8a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8-m.base",
|
|
.zig_name = "v8m",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8-m.main",
|
|
.zig_name = "v8m_main",
|
|
},
|
|
.{
|
|
.llvm_name = "armv8-r",
|
|
.zig_name = "v8r",
|
|
},
|
|
.{
|
|
.llvm_name = "armv9.1-a",
|
|
.zig_name = "v9_1a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv9.2-a",
|
|
.zig_name = "v9_2a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv9.3-a",
|
|
.zig_name = "v9_3a",
|
|
},
|
|
.{
|
|
.llvm_name = "armv9-a",
|
|
.zig_name = "v9a",
|
|
},
|
|
.{
|
|
.llvm_name = "v4t",
|
|
.zig_name = "has_v4t",
|
|
},
|
|
.{
|
|
.llvm_name = "v5t",
|
|
.zig_name = "has_v5t",
|
|
},
|
|
.{
|
|
.llvm_name = "v5te",
|
|
.zig_name = "has_v5te",
|
|
},
|
|
.{
|
|
.llvm_name = "v6",
|
|
.zig_name = "has_v6",
|
|
},
|
|
.{
|
|
.llvm_name = "v6k",
|
|
.zig_name = "has_v6k",
|
|
},
|
|
.{
|
|
.llvm_name = "v6m",
|
|
.zig_name = "has_v6m",
|
|
},
|
|
.{
|
|
.llvm_name = "v6t2",
|
|
.zig_name = "has_v6t2",
|
|
},
|
|
.{
|
|
.llvm_name = "v7",
|
|
.zig_name = "has_v7",
|
|
},
|
|
.{
|
|
.llvm_name = "v7clrex",
|
|
.zig_name = "has_v7clrex",
|
|
},
|
|
.{
|
|
.llvm_name = "v8",
|
|
.zig_name = "has_v8",
|
|
},
|
|
.{
|
|
.llvm_name = "v8m",
|
|
.zig_name = "has_v8m",
|
|
},
|
|
.{
|
|
.llvm_name = "v8m.main",
|
|
.zig_name = "has_v8m_main",
|
|
},
|
|
.{
|
|
.llvm_name = "v8.1a",
|
|
.zig_name = "has_v8_1a",
|
|
},
|
|
.{
|
|
.llvm_name = "v8.1m.main",
|
|
.zig_name = "has_v8_1m_main",
|
|
},
|
|
.{
|
|
.llvm_name = "v8.2a",
|
|
.zig_name = "has_v8_2a",
|
|
},
|
|
.{
|
|
.llvm_name = "v8.3a",
|
|
.zig_name = "has_v8_3a",
|
|
},
|
|
.{
|
|
.llvm_name = "v8.4a",
|
|
.zig_name = "has_v8_4a",
|
|
},
|
|
.{
|
|
.llvm_name = "v8.5a",
|
|
.zig_name = "has_v8_5a",
|
|
},
|
|
.{
|
|
.llvm_name = "v8.6a",
|
|
.zig_name = "has_v8_6a",
|
|
},
|
|
.{
|
|
.llvm_name = "v8.7a",
|
|
.zig_name = "has_v8_7a",
|
|
},
|
|
.{
|
|
.llvm_name = "v8.8a",
|
|
.zig_name = "has_v8_8a",
|
|
},
|
|
.{
|
|
.llvm_name = "v9a",
|
|
.zig_name = "has_v9a",
|
|
},
|
|
.{
|
|
.llvm_name = "v9.1a",
|
|
.zig_name = "has_v9_1a",
|
|
},
|
|
.{
|
|
.llvm_name = "v9.2a",
|
|
.zig_name = "has_v9_2a",
|
|
},
|
|
.{
|
|
.llvm_name = "v9.3a",
|
|
.zig_name = "has_v9_3a",
|
|
},
|
|
},
|
|
},
|
|
.{
|
|
.zig_name = "avr",
|
|
.llvm_name = "AVR",
|
|
.td_name = "AVR.td",
|
|
},
|
|
.{
|
|
.zig_name = "bpf",
|
|
.llvm_name = "BPF",
|
|
.td_name = "BPF.td",
|
|
},
|
|
.{
|
|
.zig_name = "csky",
|
|
.llvm_name = "CSKY",
|
|
.td_name = "CSKY.td",
|
|
},
|
|
.{
|
|
.zig_name = "hexagon",
|
|
.llvm_name = "Hexagon",
|
|
.td_name = "Hexagon.td",
|
|
},
|
|
.{
|
|
.zig_name = "lanai",
|
|
.llvm_name = "Lanai",
|
|
.td_name = "Lanai.td",
|
|
},
|
|
.{
|
|
.zig_name = "msp430",
|
|
.llvm_name = "MSP430",
|
|
.td_name = "MSP430.td",
|
|
},
|
|
.{
|
|
.zig_name = "mips",
|
|
.llvm_name = "Mips",
|
|
.td_name = "Mips.td",
|
|
},
|
|
.{
|
|
.zig_name = "nvptx",
|
|
.llvm_name = "NVPTX",
|
|
.td_name = "NVPTX.td",
|
|
},
|
|
.{
|
|
.zig_name = "powerpc",
|
|
.llvm_name = "PowerPC",
|
|
.td_name = "PPC.td",
|
|
.feature_overrides = &.{
|
|
.{
|
|
.llvm_name = "ppc32",
|
|
.omit = true,
|
|
},
|
|
},
|
|
},
|
|
.{
|
|
.zig_name = "riscv",
|
|
.llvm_name = "RISCV",
|
|
.td_name = "RISCV.td",
|
|
.feature_overrides = &.{
|
|
.{
|
|
.llvm_name = "sifive7",
|
|
.flatten = true,
|
|
},
|
|
},
|
|
.extra_cpus = &.{
|
|
.{
|
|
.llvm_name = null,
|
|
.zig_name = "baseline_rv32",
|
|
.features = &.{ "a", "c", "d", "f", "m" },
|
|
},
|
|
.{
|
|
.llvm_name = null,
|
|
.zig_name = "baseline_rv64",
|
|
.features = &.{ "64bit", "a", "c", "d", "f", "m" },
|
|
},
|
|
},
|
|
},
|
|
.{
|
|
.zig_name = "sparc",
|
|
.llvm_name = "Sparc",
|
|
.td_name = "Sparc.td",
|
|
},
|
|
.{
|
|
.zig_name = "s390x",
|
|
.llvm_name = "SystemZ",
|
|
.td_name = "SystemZ.td",
|
|
},
|
|
.{
|
|
.zig_name = "ve",
|
|
.llvm_name = "VE",
|
|
.td_name = "VE.td",
|
|
},
|
|
.{
|
|
.zig_name = "wasm",
|
|
.llvm_name = "WebAssembly",
|
|
.td_name = "WebAssembly.td",
|
|
},
|
|
.{
|
|
.zig_name = "x86",
|
|
.llvm_name = "X86",
|
|
.td_name = "X86.td",
|
|
.feature_overrides = &.{
|
|
.{
|
|
.llvm_name = "64bit-mode",
|
|
.omit = true,
|
|
},
|
|
.{
|
|
.llvm_name = "lakemont",
|
|
.extra_deps = &.{"soft_float"},
|
|
},
|
|
},
|
|
},
|
|
.{
|
|
.zig_name = "xcore",
|
|
.llvm_name = "XCore",
|
|
.td_name = "XCore.td",
|
|
},
|
|
};
|
|
|
|
pub fn main() anyerror!void {
|
|
var arena_state = std.heap.ArenaAllocator.init(std.heap.page_allocator);
|
|
defer arena_state.deinit();
|
|
const arena = arena_state.allocator();
|
|
|
|
const args = try std.process.argsAlloc(arena);
|
|
if (args.len <= 1) {
|
|
usageAndExit(std.io.getStdErr(), args[0], 1);
|
|
}
|
|
if (std.mem.eql(u8, args[1], "--help")) {
|
|
usageAndExit(std.io.getStdOut(), args[0], 0);
|
|
}
|
|
if (args.len < 4) {
|
|
usageAndExit(std.io.getStdErr(), args[0], 1);
|
|
}
|
|
|
|
const llvm_tblgen_exe = args[1];
|
|
if (std.mem.startsWith(u8, llvm_tblgen_exe, "-")) {
|
|
usageAndExit(std.io.getStdErr(), args[0], 1);
|
|
}
|
|
|
|
const llvm_src_root = args[2];
|
|
if (std.mem.startsWith(u8, llvm_src_root, "-")) {
|
|
usageAndExit(std.io.getStdErr(), args[0], 1);
|
|
}
|
|
|
|
const zig_src_root = args[3];
|
|
if (std.mem.startsWith(u8, zig_src_root, "-")) {
|
|
usageAndExit(std.io.getStdErr(), args[0], 1);
|
|
}
|
|
|
|
var zig_src_dir = try fs.cwd().openDir(zig_src_root, .{});
|
|
defer zig_src_dir.close();
|
|
|
|
var progress = std.Progress{};
|
|
const root_progress = progress.start("", llvm_targets.len);
|
|
defer root_progress.end();
|
|
|
|
if (builtin.single_threaded) {
|
|
for (llvm_targets) |llvm_target| {
|
|
try processOneTarget(Job{
|
|
.llvm_tblgen_exe = llvm_tblgen_exe,
|
|
.llvm_src_root = llvm_src_root,
|
|
.zig_src_dir = zig_src_dir,
|
|
.root_progress = root_progress,
|
|
.llvm_target = llvm_target,
|
|
});
|
|
}
|
|
} else {
|
|
var threads = try arena.alloc(std.Thread, llvm_targets.len);
|
|
for (llvm_targets) |llvm_target, i| {
|
|
const job = Job{
|
|
.llvm_tblgen_exe = llvm_tblgen_exe,
|
|
.llvm_src_root = llvm_src_root,
|
|
.zig_src_dir = zig_src_dir,
|
|
.root_progress = root_progress,
|
|
.llvm_target = llvm_target,
|
|
};
|
|
threads[i] = try std.Thread.spawn(.{}, processOneTarget, .{job});
|
|
}
|
|
for (threads) |thread| {
|
|
thread.join();
|
|
}
|
|
}
|
|
}
|
|
|
|
const Job = struct {
|
|
llvm_tblgen_exe: []const u8,
|
|
llvm_src_root: []const u8,
|
|
zig_src_dir: std.fs.Dir,
|
|
root_progress: *std.Progress.Node,
|
|
llvm_target: LlvmTarget,
|
|
};
|
|
|
|
fn processOneTarget(job: Job) anyerror!void {
|
|
const llvm_target = job.llvm_target;
|
|
|
|
var arena_state = std.heap.ArenaAllocator.init(std.heap.page_allocator);
|
|
defer arena_state.deinit();
|
|
const arena = arena_state.allocator();
|
|
|
|
var progress_node = job.root_progress.start(llvm_target.zig_name, 3);
|
|
progress_node.activate();
|
|
defer progress_node.end();
|
|
|
|
var tblgen_progress = progress_node.start("invoke llvm-tblgen", 0);
|
|
tblgen_progress.activate();
|
|
|
|
const child_args = [_][]const u8{
|
|
job.llvm_tblgen_exe,
|
|
"--dump-json",
|
|
try std.fmt.allocPrint(arena, "{s}/llvm/lib/Target/{s}/{s}", .{
|
|
job.llvm_src_root,
|
|
llvm_target.llvm_name,
|
|
llvm_target.td_name,
|
|
}),
|
|
try std.fmt.allocPrint(arena, "-I={s}/llvm/include", .{job.llvm_src_root}),
|
|
try std.fmt.allocPrint(arena, "-I={s}/llvm/lib/Target/{s}", .{
|
|
job.llvm_src_root, llvm_target.llvm_name,
|
|
}),
|
|
};
|
|
|
|
const child_result = try std.ChildProcess.exec(.{
|
|
.allocator = arena,
|
|
.argv = &child_args,
|
|
.max_output_bytes = 200 * 1024 * 1024,
|
|
});
|
|
tblgen_progress.end();
|
|
if (child_result.stderr.len != 0) {
|
|
std.debug.print("{s}\n", .{child_result.stderr});
|
|
}
|
|
|
|
const json_text = switch (child_result.term) {
|
|
.Exited => |code| if (code == 0) child_result.stdout else {
|
|
std.debug.print("llvm-tblgen exited with code {d}\n", .{code});
|
|
std.process.exit(1);
|
|
},
|
|
else => {
|
|
std.debug.print("llvm-tblgen crashed\n", .{});
|
|
std.process.exit(1);
|
|
},
|
|
};
|
|
|
|
var json_parse_progress = progress_node.start("parse JSON", 0);
|
|
json_parse_progress.activate();
|
|
|
|
var parser = json.Parser.init(arena, false);
|
|
const tree = try parser.parse(json_text);
|
|
json_parse_progress.end();
|
|
|
|
var render_progress = progress_node.start("render zig code", 0);
|
|
render_progress.activate();
|
|
|
|
const root_map = &tree.root.Object;
|
|
var features_table = std.StringHashMap(Feature).init(arena);
|
|
var all_features = std.ArrayList(Feature).init(arena);
|
|
var all_cpus = std.ArrayList(Cpu).init(arena);
|
|
{
|
|
var it = root_map.iterator();
|
|
root_it: while (it.next()) |kv| {
|
|
if (kv.key_ptr.len == 0) continue;
|
|
if (kv.key_ptr.*[0] == '!') continue;
|
|
if (kv.value_ptr.* != .Object) continue;
|
|
if (hasSuperclass(&kv.value_ptr.Object, "SubtargetFeature")) {
|
|
const llvm_name = kv.value_ptr.Object.get("Name").?.String;
|
|
if (llvm_name.len == 0) continue;
|
|
|
|
var zig_name = try llvmNameToZigName(arena, llvm_name);
|
|
var desc = kv.value_ptr.Object.get("Desc").?.String;
|
|
var deps = std.ArrayList([]const u8).init(arena);
|
|
var omit = false;
|
|
var flatten = false;
|
|
const implies = kv.value_ptr.Object.get("Implies").?.Array;
|
|
for (implies.items) |imply| {
|
|
const other_key = imply.Object.get("def").?.String;
|
|
const other_obj = &root_map.getPtr(other_key).?.Object;
|
|
const other_llvm_name = other_obj.get("Name").?.String;
|
|
const other_zig_name = (try llvmNameToZigNameOmit(
|
|
arena,
|
|
llvm_target,
|
|
other_llvm_name,
|
|
)) orelse continue;
|
|
try deps.append(other_zig_name);
|
|
}
|
|
for (llvm_target.feature_overrides) |feature_override| {
|
|
if (mem.eql(u8, llvm_name, feature_override.llvm_name)) {
|
|
if (feature_override.omit) {
|
|
// Still put the feature into the table so that we can
|
|
// expand dependencies for the feature overrides marked `flatten`.
|
|
omit = true;
|
|
}
|
|
if (feature_override.flatten) {
|
|
flatten = true;
|
|
}
|
|
if (feature_override.zig_name) |override_name| {
|
|
zig_name = override_name;
|
|
}
|
|
if (feature_override.desc) |override_desc| {
|
|
desc = override_desc;
|
|
}
|
|
for (feature_override.extra_deps) |extra_dep| {
|
|
try deps.append(extra_dep);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
const feature: Feature = .{
|
|
.llvm_name = llvm_name,
|
|
.zig_name = zig_name,
|
|
.desc = desc,
|
|
.deps = deps.items,
|
|
.flatten = flatten,
|
|
};
|
|
try features_table.put(zig_name, feature);
|
|
if (!omit and !flatten) {
|
|
try all_features.append(feature);
|
|
}
|
|
}
|
|
if (hasSuperclass(&kv.value_ptr.Object, "Processor")) {
|
|
const llvm_name = kv.value_ptr.Object.get("Name").?.String;
|
|
if (llvm_name.len == 0) continue;
|
|
|
|
var zig_name = try llvmNameToZigName(arena, llvm_name);
|
|
var deps = std.ArrayList([]const u8).init(arena);
|
|
const features = kv.value_ptr.Object.get("Features").?.Array;
|
|
for (features.items) |feature| {
|
|
const feature_key = feature.Object.get("def").?.String;
|
|
const feature_obj = &root_map.getPtr(feature_key).?.Object;
|
|
const feature_llvm_name = feature_obj.get("Name").?.String;
|
|
if (feature_llvm_name.len == 0) continue;
|
|
const feature_zig_name = (try llvmNameToZigNameOmit(
|
|
arena,
|
|
llvm_target,
|
|
feature_llvm_name,
|
|
)) orelse continue;
|
|
try deps.append(feature_zig_name);
|
|
}
|
|
const tune_features = kv.value_ptr.Object.get("TuneFeatures").?.Array;
|
|
for (tune_features.items) |feature| {
|
|
const feature_key = feature.Object.get("def").?.String;
|
|
const feature_obj = &root_map.getPtr(feature_key).?.Object;
|
|
const feature_llvm_name = feature_obj.get("Name").?.String;
|
|
if (feature_llvm_name.len == 0) continue;
|
|
const feature_zig_name = (try llvmNameToZigNameOmit(
|
|
arena,
|
|
llvm_target,
|
|
feature_llvm_name,
|
|
)) orelse continue;
|
|
try deps.append(feature_zig_name);
|
|
}
|
|
for (llvm_target.feature_overrides) |feature_override| {
|
|
if (mem.eql(u8, llvm_name, feature_override.llvm_name)) {
|
|
if (feature_override.omit) {
|
|
continue :root_it;
|
|
}
|
|
if (feature_override.zig_name) |override_name| {
|
|
zig_name = override_name;
|
|
}
|
|
for (feature_override.extra_deps) |extra_dep| {
|
|
try deps.append(extra_dep);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
try all_cpus.append(.{
|
|
.llvm_name = llvm_name,
|
|
.zig_name = zig_name,
|
|
.features = deps.items,
|
|
});
|
|
}
|
|
}
|
|
}
|
|
for (llvm_target.extra_features) |extra_feature| {
|
|
try features_table.put(extra_feature.zig_name, extra_feature);
|
|
try all_features.append(extra_feature);
|
|
}
|
|
for (llvm_target.extra_cpus) |extra_cpu| {
|
|
try all_cpus.append(extra_cpu);
|
|
}
|
|
std.sort.sort(Feature, all_features.items, {}, featureLessThan);
|
|
std.sort.sort(Cpu, all_cpus.items, {}, cpuLessThan);
|
|
|
|
const target_sub_path = try fs.path.join(arena, &.{ "lib", "std", "target" });
|
|
var target_dir = try job.zig_src_dir.makeOpenPath(target_sub_path, .{});
|
|
defer target_dir.close();
|
|
|
|
const zig_code_basename = try std.fmt.allocPrint(arena, "{s}.zig", .{llvm_target.zig_name});
|
|
|
|
if (all_features.items.len == 0) {
|
|
// We represent this with an empty file.
|
|
try target_dir.deleteTree(zig_code_basename);
|
|
return;
|
|
}
|
|
|
|
var zig_code_file = try target_dir.createFile(zig_code_basename, .{});
|
|
defer zig_code_file.close();
|
|
|
|
var bw = std.io.bufferedWriter(zig_code_file.writer());
|
|
const w = bw.writer();
|
|
|
|
try w.writeAll(
|
|
\\//! This file is auto-generated by tools/update_cpu_features.zig.
|
|
\\
|
|
\\const std = @import("../std.zig");
|
|
\\const CpuFeature = std.Target.Cpu.Feature;
|
|
\\const CpuModel = std.Target.Cpu.Model;
|
|
\\
|
|
\\pub const Feature = enum {
|
|
\\
|
|
);
|
|
|
|
for (all_features.items) |feature| {
|
|
try w.print(" {},\n", .{std.zig.fmtId(feature.zig_name)});
|
|
}
|
|
|
|
try w.writeAll(
|
|
\\};
|
|
\\
|
|
\\pub const featureSet = CpuFeature.feature_set_fns(Feature).featureSet;
|
|
\\pub const featureSetHas = CpuFeature.feature_set_fns(Feature).featureSetHas;
|
|
\\pub const featureSetHasAny = CpuFeature.feature_set_fns(Feature).featureSetHasAny;
|
|
\\pub const featureSetHasAll = CpuFeature.feature_set_fns(Feature).featureSetHasAll;
|
|
\\
|
|
\\pub const all_features = blk: {
|
|
\\
|
|
);
|
|
if (llvm_target.branch_quota) |branch_quota| {
|
|
try w.print(" @setEvalBranchQuota({d});\n", .{branch_quota});
|
|
}
|
|
try w.writeAll(
|
|
\\ const len = @typeInfo(Feature).Enum.fields.len;
|
|
\\ std.debug.assert(len <= CpuFeature.Set.needed_bit_count);
|
|
\\ var result: [len]CpuFeature = undefined;
|
|
\\
|
|
);
|
|
|
|
for (all_features.items) |feature| {
|
|
if (feature.llvm_name) |llvm_name| {
|
|
try w.print(
|
|
\\ result[@enumToInt(Feature.{})] = .{{
|
|
\\ .llvm_name = "{}",
|
|
\\ .description = "{}",
|
|
\\ .dependencies = featureSet(&[_]Feature{{
|
|
,
|
|
.{
|
|
std.zig.fmtId(feature.zig_name),
|
|
std.zig.fmtEscapes(llvm_name),
|
|
std.zig.fmtEscapes(feature.desc),
|
|
},
|
|
);
|
|
} else {
|
|
try w.print(
|
|
\\ result[@enumToInt(Feature.{})] = .{{
|
|
\\ .llvm_name = null,
|
|
\\ .description = "{}",
|
|
\\ .dependencies = featureSet(&[_]Feature{{
|
|
,
|
|
.{
|
|
std.zig.fmtId(feature.zig_name),
|
|
std.zig.fmtEscapes(feature.desc),
|
|
},
|
|
);
|
|
}
|
|
var deps_set = std.StringHashMap(void).init(arena);
|
|
for (feature.deps) |dep| {
|
|
try putDep(&deps_set, features_table, dep);
|
|
}
|
|
try pruneFeatures(arena, features_table, &deps_set);
|
|
var dependencies = std.ArrayList([]const u8).init(arena);
|
|
{
|
|
var it = deps_set.keyIterator();
|
|
while (it.next()) |key| {
|
|
try dependencies.append(key.*);
|
|
}
|
|
}
|
|
std.sort.sort([]const u8, dependencies.items, {}, asciiLessThan);
|
|
|
|
if (dependencies.items.len == 0) {
|
|
try w.writeAll(
|
|
\\}),
|
|
\\ };
|
|
\\
|
|
);
|
|
} else {
|
|
try w.writeAll("\n");
|
|
for (dependencies.items) |dep| {
|
|
try w.print(" .{},\n", .{std.zig.fmtId(dep)});
|
|
}
|
|
try w.writeAll(
|
|
\\ }),
|
|
\\ };
|
|
\\
|
|
);
|
|
}
|
|
}
|
|
try w.writeAll(
|
|
\\ 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 {
|
|
\\
|
|
);
|
|
for (all_cpus.items) |cpu| {
|
|
var deps_set = std.StringHashMap(void).init(arena);
|
|
for (cpu.features) |feature_zig_name| {
|
|
try putDep(&deps_set, features_table, feature_zig_name);
|
|
}
|
|
try pruneFeatures(arena, features_table, &deps_set);
|
|
var cpu_features = std.ArrayList([]const u8).init(arena);
|
|
{
|
|
var it = deps_set.keyIterator();
|
|
while (it.next()) |key| {
|
|
try cpu_features.append(key.*);
|
|
}
|
|
}
|
|
std.sort.sort([]const u8, cpu_features.items, {}, asciiLessThan);
|
|
if (cpu.llvm_name) |llvm_name| {
|
|
try w.print(
|
|
\\ pub const {} = CpuModel{{
|
|
\\ .name = "{}",
|
|
\\ .llvm_name = "{}",
|
|
\\ .features = featureSet(&[_]Feature{{
|
|
, .{
|
|
std.zig.fmtId(cpu.zig_name),
|
|
std.zig.fmtEscapes(cpu.zig_name),
|
|
std.zig.fmtEscapes(llvm_name),
|
|
});
|
|
} else {
|
|
try w.print(
|
|
\\ pub const {} = CpuModel{{
|
|
\\ .name = "{}",
|
|
\\ .llvm_name = null,
|
|
\\ .features = featureSet(&[_]Feature{{
|
|
, .{
|
|
std.zig.fmtId(cpu.zig_name),
|
|
std.zig.fmtEscapes(cpu.zig_name),
|
|
});
|
|
}
|
|
if (cpu_features.items.len == 0) {
|
|
try w.writeAll(
|
|
\\}),
|
|
\\ };
|
|
\\
|
|
);
|
|
} else {
|
|
try w.writeAll("\n");
|
|
for (cpu_features.items) |feature_zig_name| {
|
|
try w.print(" .{},\n", .{std.zig.fmtId(feature_zig_name)});
|
|
}
|
|
try w.writeAll(
|
|
\\ }),
|
|
\\ };
|
|
\\
|
|
);
|
|
}
|
|
}
|
|
|
|
try w.writeAll(
|
|
\\};
|
|
\\
|
|
);
|
|
try bw.flush();
|
|
|
|
render_progress.end();
|
|
}
|
|
|
|
fn usageAndExit(file: fs.File, arg0: []const u8, code: u8) noreturn {
|
|
file.writer().print(
|
|
\\Usage: {s} /path/to/llvm-tblgen /path/git/llvm-project /path/git/zig
|
|
\\
|
|
\\Updates lib/std/target/<target>.zig from llvm/lib/Target/<Target>/<Target>.td .
|
|
\\
|
|
\\On a less beefy system, or when debugging, compile with --single-threaded.
|
|
\\
|
|
, .{arg0}) catch std.process.exit(1);
|
|
std.process.exit(code);
|
|
}
|
|
|
|
fn featureLessThan(context: void, a: Feature, b: Feature) bool {
|
|
_ = context;
|
|
return std.ascii.lessThanIgnoreCase(a.zig_name, b.zig_name);
|
|
}
|
|
|
|
fn cpuLessThan(context: void, a: Cpu, b: Cpu) bool {
|
|
_ = context;
|
|
return std.ascii.lessThanIgnoreCase(a.zig_name, b.zig_name);
|
|
}
|
|
|
|
fn asciiLessThan(context: void, a: []const u8, b: []const u8) bool {
|
|
_ = context;
|
|
return std.ascii.lessThanIgnoreCase(a, b);
|
|
}
|
|
|
|
fn llvmNameToZigName(arena: mem.Allocator, llvm_name: []const u8) ![]const u8 {
|
|
const duped = try arena.dupe(u8, llvm_name);
|
|
for (duped) |*byte| switch (byte.*) {
|
|
'-', '.' => byte.* = '_',
|
|
else => continue,
|
|
};
|
|
return duped;
|
|
}
|
|
|
|
fn llvmNameToZigNameOmit(
|
|
arena: mem.Allocator,
|
|
llvm_target: LlvmTarget,
|
|
llvm_name: []const u8,
|
|
) !?[]const u8 {
|
|
for (llvm_target.feature_overrides) |feature_override| {
|
|
if (mem.eql(u8, feature_override.llvm_name, llvm_name)) {
|
|
if (feature_override.omit) return null;
|
|
return feature_override.zig_name orelse break;
|
|
}
|
|
}
|
|
return try llvmNameToZigName(arena, llvm_name);
|
|
}
|
|
|
|
fn hasSuperclass(obj: *json.ObjectMap, class_name: []const u8) bool {
|
|
const superclasses_json = obj.get("!superclasses") orelse return false;
|
|
for (superclasses_json.Array.items) |superclass_json| {
|
|
const superclass = superclass_json.String;
|
|
if (std.mem.eql(u8, superclass, class_name)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
fn pruneFeatures(
|
|
arena: mem.Allocator,
|
|
features_table: std.StringHashMap(Feature),
|
|
deps_set: *std.StringHashMap(void),
|
|
) !void {
|
|
// For each element, recursively iterate over the dependencies and add
|
|
// everything we find to a "deletion set".
|
|
// Then, iterate over the deletion set and delete all that stuff from `deps_set`.
|
|
var deletion_set = std.StringHashMap(void).init(arena);
|
|
{
|
|
var it = deps_set.keyIterator();
|
|
while (it.next()) |key| {
|
|
const feature = features_table.get(key.*).?;
|
|
try walkFeatures(features_table, &deletion_set, feature);
|
|
}
|
|
}
|
|
{
|
|
var it = deletion_set.keyIterator();
|
|
while (it.next()) |key| {
|
|
_ = deps_set.remove(key.*);
|
|
}
|
|
}
|
|
}
|
|
|
|
fn walkFeatures(
|
|
features_table: std.StringHashMap(Feature),
|
|
deletion_set: *std.StringHashMap(void),
|
|
feature: Feature,
|
|
) error{OutOfMemory}!void {
|
|
for (feature.deps) |dep| {
|
|
try deletion_set.put(dep, {});
|
|
const other_feature = features_table.get(dep).?;
|
|
try walkFeatures(features_table, deletion_set, other_feature);
|
|
}
|
|
}
|
|
|
|
fn putDep(
|
|
deps_set: *std.StringHashMap(void),
|
|
features_table: std.StringHashMap(Feature),
|
|
zig_feature_name: []const u8,
|
|
) error{OutOfMemory}!void {
|
|
const feature = features_table.get(zig_feature_name).?;
|
|
if (feature.flatten) {
|
|
for (feature.deps) |dep| {
|
|
try putDep(deps_set, features_table, dep);
|
|
}
|
|
} else {
|
|
try deps_set.put(zig_feature_name, {});
|
|
}
|
|
}
|