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https://github.com/ziglang/zig.git
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LLVM: Emit module flags through Builder instead of LLVM API
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antlilja
parent
cad65307b7
commit
629bd90e26
@ -898,58 +898,7 @@ pub const Object = struct {
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.{ .optimized = comp.root_mod.optimize_mode != .Debug },
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);
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const i32_2 = try builder.intConst(.i32, 2);
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const i32_3 = try builder.intConst(.i32, 3);
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const debug_info_version = try builder.debugModuleFlag(
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try builder.metadataConstant(i32_2),
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try builder.metadataString("Debug Info Version"),
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try builder.metadataConstant(i32_3),
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);
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switch (comp.config.debug_format) {
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.strip => unreachable,
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.dwarf => |f| {
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const i32_4 = try builder.intConst(.i32, 4);
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const dwarf_version = try builder.debugModuleFlag(
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try builder.metadataConstant(i32_2),
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try builder.metadataString("Dwarf Version"),
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try builder.metadataConstant(i32_4),
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);
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switch (f) {
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.@"32" => {
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try builder.debugNamed(try builder.metadataString("llvm.module.flags"), &.{
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debug_info_version,
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dwarf_version,
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});
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},
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.@"64" => {
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const dwarf64 = try builder.debugModuleFlag(
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try builder.metadataConstant(i32_2),
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try builder.metadataString("DWARF64"),
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try builder.metadataConstant(.@"1"),
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);
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try builder.debugNamed(try builder.metadataString("llvm.module.flags"), &.{
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debug_info_version,
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dwarf_version,
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dwarf64,
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});
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},
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}
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},
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.code_view => {
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const code_view = try builder.debugModuleFlag(
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try builder.metadataConstant(i32_2),
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try builder.metadataString("CodeView"),
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try builder.metadataConstant(.@"1"),
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);
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try builder.debugNamed(try builder.metadataString("llvm.module.flags"), &.{
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debug_info_version,
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code_view,
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});
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},
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}
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try builder.debugNamed(try builder.metadataString("llvm.dbg.cu"), &.{debug_compile_unit});
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try builder.metadataNamed(try builder.metadataString("llvm.dbg.cu"), &.{debug_compile_unit});
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break :debug_info .{ debug_compile_unit, debug_enums_fwd_ref, debug_globals_fwd_ref };
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} else .{.none} ** 3;
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@ -1149,6 +1098,81 @@ pub const Object = struct {
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}
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}
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{
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var module_flags = try std.ArrayList(Builder.Metadata).initCapacity(o.gpa, 6);
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defer module_flags.deinit();
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const behavior_warning = try o.builder.metadataConstant(try o.builder.intConst(.i32, 2));
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const large_pic = target_util.usesLargePIC(comp.root_mod.resolved_target.result);
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if (comp.root_mod.pic) {
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module_flags.appendAssumeCapacity(try o.builder.metadataModuleFlag(
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behavior_warning,
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try o.builder.metadataString("PIC Level"),
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try o.builder.metadataConstant(try o.builder.intConst(.i32, @as(i32, if (large_pic) 2 else 1))),
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));
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}
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if (comp.config.pie) {
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module_flags.appendAssumeCapacity(try o.builder.metadataModuleFlag(
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behavior_warning,
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try o.builder.metadataString("PIE Level"),
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try o.builder.metadataConstant(try o.builder.intConst(.i32, @as(i32, if (large_pic) 2 else 1))),
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));
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}
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if (comp.root_mod.code_model != .default) {
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module_flags.appendAssumeCapacity(try o.builder.metadataModuleFlag(
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behavior_warning,
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try o.builder.metadataString("Code Model"),
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try o.builder.metadataConstant(try o.builder.intConst(.i32, @as(i32, switch (comp.root_mod.code_model) {
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.tiny => 0,
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.small => 1,
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.kernel => 2,
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.medium => 3,
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.large => 4,
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else => unreachable,
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}))),
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));
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}
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if (!o.builder.strip) {
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module_flags.appendAssumeCapacity(try o.builder.metadataModuleFlag(
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behavior_warning,
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try o.builder.metadataString("Debug Info Version"),
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try o.builder.metadataConstant(try o.builder.intConst(.i32, 3)),
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));
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switch (comp.config.debug_format) {
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.strip => unreachable,
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.dwarf => |f| {
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module_flags.appendAssumeCapacity(try o.builder.metadataModuleFlag(
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behavior_warning,
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try o.builder.metadataString("Dwarf Version"),
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try o.builder.metadataConstant(try o.builder.intConst(.i32, 4)),
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));
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if (f == .@"64") {
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module_flags.appendAssumeCapacity(try o.builder.metadataModuleFlag(
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behavior_warning,
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try o.builder.metadataString("DWARF64"),
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try o.builder.metadataConstant(.@"1"),
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));
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}
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},
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.code_view => {
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module_flags.appendAssumeCapacity(try o.builder.metadataModuleFlag(
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behavior_warning,
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try o.builder.metadataString("CodeView"),
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try o.builder.metadataConstant(.@"1"),
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));
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},
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}
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}
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try o.builder.metadataNamed(try o.builder.metadataString("llvm.module.flags"), module_flags.items);
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}
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const target_triple_sentinel =
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try o.gpa.dupeZ(u8, o.builder.target_triple.slice(&o.builder).?);
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defer o.gpa.free(target_triple_sentinel);
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@ -1235,14 +1259,13 @@ pub const Object = struct {
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}
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const optimize_mode = comp.root_mod.optimize_mode;
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const pic = comp.root_mod.pic;
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const opt_level: llvm.CodeGenOptLevel = if (optimize_mode == .Debug)
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.None
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else
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.Aggressive;
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const reloc_mode: llvm.RelocMode = if (pic)
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const reloc_mode: llvm.RelocMode = if (comp.root_mod.pic)
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.PIC
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else if (comp.config.link_mode == .dynamic)
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llvm.RelocMode.DynamicNoPIC
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@ -1276,13 +1299,6 @@ pub const Object = struct {
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);
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errdefer target_machine.dispose();
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const large_pic = target_util.usesLargePIC(comp.root_mod.resolved_target.result);
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if (pic) module.setModulePICLevel(large_pic);
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if (comp.config.pie) module.setModulePIELevel(large_pic);
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if (code_model != .Default) module.setModuleCodeModel(code_model);
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if (comp.llvm_opt_bisect_limit >= 0) {
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context.setOptBisectLimit(comp.llvm_opt_bisect_limit);
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}
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@ -11899,10 +11899,10 @@ pub fn trailingMetadataStringAssumeCapacity(self: *Builder) MetadataString {
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return @enumFromInt(gop.index);
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}
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pub fn debugNamed(self: *Builder, name: MetadataString, operands: []const Metadata) Allocator.Error!void {
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pub fn metadataNamed(self: *Builder, name: MetadataString, operands: []const Metadata) Allocator.Error!void {
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try self.metadata_extra.ensureUnusedCapacity(self.gpa, operands.len);
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try self.metadata_named.ensureUnusedCapacity(self.gpa, 1);
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self.debugNamedAssumeCapacity(name, operands);
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self.metadataNamedAssumeCapacity(name, operands);
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}
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fn metadataNone(self: *Builder) Allocator.Error!Metadata {
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@ -12213,14 +12213,14 @@ pub fn strTuple(
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return self.strTupleAssumeCapacity(str, elements);
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}
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pub fn debugModuleFlag(
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pub fn metadataModuleFlag(
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self: *Builder,
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behavior: Metadata,
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name: MetadataString,
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constant: Metadata,
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) Allocator.Error!Metadata {
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try self.ensureUnusedMetadataCapacity(1, Metadata.ModuleFlag, 0);
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return self.debugModuleFlagAssumeCapacity(behavior, name, constant);
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return self.metadataModuleFlagAssumeCapacity(behavior, name, constant);
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}
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pub fn debugLocalVar(
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@ -12365,8 +12365,7 @@ fn metadataDistinctAssumeCapacity(self: *Builder, tag: Metadata.Tag, value: anyt
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return @enumFromInt(gop.index);
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}
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fn debugNamedAssumeCapacity(self: *Builder, name: MetadataString, operands: []const Metadata) void {
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assert(!self.strip);
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fn metadataNamedAssumeCapacity(self: *Builder, name: MetadataString, operands: []const Metadata) void {
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assert(name != .none);
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const extra_index: u32 = @intCast(self.metadata_extra.items.len);
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self.metadata_extra.appendSliceAssumeCapacity(@ptrCast(operands));
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@ -12949,13 +12948,12 @@ fn strTupleAssumeCapacity(
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return @enumFromInt(gop.index);
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}
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fn debugModuleFlagAssumeCapacity(
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fn metadataModuleFlagAssumeCapacity(
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self: *Builder,
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behavior: Metadata,
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name: MetadataString,
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constant: Metadata,
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) Metadata {
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assert(!self.strip);
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return self.metadataSimpleAssumeCapacity(.module_flag, Metadata.ModuleFlag{
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.behavior = behavior,
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.name = name,
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