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improve Function memory layout

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Techatrix 2023-01-17 20:35:42 +01:00
parent fb3a4238d7
commit 2ea97a050b
1 changed files with 29 additions and 27 deletions
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50
src/InternPool.zig
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@ -80,19 +80,15 @@ pub const Enum = struct {
}; };
pub const Function = struct { pub const Function = struct {
calling_convention: std.builtin.CallingConvention = .Unspecified, args: []const Index,
args_is_comptime: std.StaticBitSet(32) = std.StaticBitSet(32).initEmpty(),
args_is_generic: std.StaticBitSet(32) = std.StaticBitSet(32).initEmpty(),
args_is_noalias: std.StaticBitSet(32) = std.StaticBitSet(32).initEmpty(),
return_type: Index,
alignment: u16 = 0, alignment: u16 = 0,
calling_convention: std.builtin.CallingConvention = .Unspecified,
is_generic: bool = false, is_generic: bool = false,
is_var_args: bool = false, is_var_args: bool = false,
return_type: Index,
args: []const Param,
pub const Param = packed struct {
arg_type: Index,
is_comptime: bool = false,
is_generic: bool = false,
is_noalias: bool = false,
};
}; };
pub const Union = struct { pub const Union = struct {
@ -572,17 +568,19 @@ pub const Key = union(enum) {
.function_type => |function_info| { .function_type => |function_info| {
try writer.writeAll("fn("); try writer.writeAll("fn(");
for (function_info.args) |arg, i| { for (function_info.args) |arg_ty, i| {
if (i != 0) try writer.writeAll(", "); if (i != 0) try writer.writeAll(", ");
if (arg.is_comptime) { if (i < 32) {
if (function_info.args_is_comptime.isSet(i)) {
try writer.writeAll("comptime "); try writer.writeAll("comptime ");
} }
if (arg.is_noalias) { if (function_info.args_is_noalias.isSet(i)) {
try writer.writeAll("noalias "); try writer.writeAll("noalias ");
} }
}
try printType(arg.arg_type, ip, writer); try printType(arg_ty, ip, writer);
} }
if (function_info.is_var_args) { if (function_info.is_var_args) {
@ -2737,30 +2735,34 @@ test "function type" {
const bool_type = try ip.get(gpa, .{ .simple = .bool }); const bool_type = try ip.get(gpa, .{ .simple = .bool });
const type_type = try ip.get(gpa, .{ .simple = .type }); const type_type = try ip.get(gpa, .{ .simple = .type });
var param1 = Function.Param{ .arg_type = i32_type };
const @"fn(i32) bool" = try ip.get(gpa, .{ .function_type = .{ const @"fn(i32) bool" = try ip.get(gpa, .{ .function_type = .{
.args = &.{i32_type},
.return_type = bool_type, .return_type = bool_type,
.args = &.{param1},
} }); } });
var param2 = Function.Param{ .is_comptime = true, .arg_type = type_type }; var args_is_comptime = std.StaticBitSet(32).initEmpty();
var param3 = Function.Param{ .is_noalias = true, .arg_type = i32_type }; args_is_comptime.set(0);
var args_is_noalias = std.StaticBitSet(32).initEmpty();
args_is_noalias.set(1);
const @"fn(comptime type, noalias i32) type" = try ip.get(gpa, .{ .function_type = .{ const @"fn(comptime type, noalias i32) type" = try ip.get(gpa, .{ .function_type = .{
.args = &.{ type_type, i32_type },
.args_is_comptime = args_is_comptime,
.args_is_noalias = args_is_noalias,
.return_type = type_type, .return_type = type_type,
.args = &.{ param2, param3 },
} }); } });
const @"fn(i32, ...) type" = try ip.get(gpa, .{ .function_type = .{ const @"fn(i32, ...) type" = try ip.get(gpa, .{ .function_type = .{
.is_var_args = true, .args = &.{i32_type},
.return_type = type_type, .return_type = type_type,
.args = &.{param1}, .is_var_args = true,
} }); } });
const @"fn() align(4) callconv(.C) type" = try ip.get(gpa, .{ .function_type = .{ const @"fn() align(4) callconv(.C) type" = try ip.get(gpa, .{ .function_type = .{
.calling_convention = .C,
.alignment = 4,
.return_type = type_type,
.args = &.{}, .args = &.{},
.return_type = type_type,
.alignment = 4,
.calling_convention = .C,
} }); } });
try testExpectFmtType(ip, @"fn(i32) bool", "fn(i32) bool"); try testExpectFmtType(ip, @"fn(i32) bool", "fn(i32) bool");