mirror of
https://github.com/ziglang/zig.git
synced 2024-11-15 16:45:27 +00:00
0fe3fd01dd
The compiler actually doesn't need any functional changes for this: Sema does reification based on the tag indices of `std.builtin.Type` already! So, no zig1.wasm update is necessary. This change is necessary to disallow name clashes between fields and decls on a type, which is a prerequisite of #9938.
72 lines
2.4 KiB
Zig
72 lines
2.4 KiB
Zig
const std = @import("std");
|
|
const builtin = @import("builtin");
|
|
const math = std.math;
|
|
const arch = builtin.cpu.arch;
|
|
const common = @import("common.zig");
|
|
|
|
pub const panic = common.panic;
|
|
|
|
comptime {
|
|
@export(&__fminh, .{ .name = "__fminh", .linkage = common.linkage, .visibility = common.visibility });
|
|
@export(&fminf, .{ .name = "fminf", .linkage = common.linkage, .visibility = common.visibility });
|
|
@export(&fmin, .{ .name = "fmin", .linkage = common.linkage, .visibility = common.visibility });
|
|
@export(&__fminx, .{ .name = "__fminx", .linkage = common.linkage, .visibility = common.visibility });
|
|
if (common.want_ppc_abi) {
|
|
@export(&fminq, .{ .name = "fminf128", .linkage = common.linkage, .visibility = common.visibility });
|
|
}
|
|
@export(&fminq, .{ .name = "fminq", .linkage = common.linkage, .visibility = common.visibility });
|
|
@export(&fminl, .{ .name = "fminl", .linkage = common.linkage, .visibility = common.visibility });
|
|
}
|
|
|
|
pub fn __fminh(x: f16, y: f16) callconv(.C) f16 {
|
|
return generic_fmin(f16, x, y);
|
|
}
|
|
|
|
pub fn fminf(x: f32, y: f32) callconv(.C) f32 {
|
|
return generic_fmin(f32, x, y);
|
|
}
|
|
|
|
pub fn fmin(x: f64, y: f64) callconv(.C) f64 {
|
|
return generic_fmin(f64, x, y);
|
|
}
|
|
|
|
pub fn __fminx(x: f80, y: f80) callconv(.C) f80 {
|
|
return generic_fmin(f80, x, y);
|
|
}
|
|
|
|
pub fn fminq(x: f128, y: f128) callconv(.C) f128 {
|
|
return generic_fmin(f128, x, y);
|
|
}
|
|
|
|
pub fn fminl(x: c_longdouble, y: c_longdouble) callconv(.C) c_longdouble {
|
|
switch (@typeInfo(c_longdouble).float.bits) {
|
|
16 => return __fminh(x, y),
|
|
32 => return fminf(x, y),
|
|
64 => return fmin(x, y),
|
|
80 => return __fminx(x, y),
|
|
128 => return fminq(x, y),
|
|
else => @compileError("unreachable"),
|
|
}
|
|
}
|
|
|
|
inline fn generic_fmin(comptime T: type, x: T, y: T) T {
|
|
if (math.isNan(x))
|
|
return y;
|
|
if (math.isNan(y))
|
|
return x;
|
|
return if (x < y) x else y;
|
|
}
|
|
|
|
test "generic_fmin" {
|
|
inline for ([_]type{ f32, f64, c_longdouble, f80, f128 }) |T| {
|
|
const nan_val = math.nan(T);
|
|
|
|
try std.testing.expect(math.isNan(generic_fmin(T, nan_val, nan_val)));
|
|
try std.testing.expectEqual(@as(T, 1.0), generic_fmin(T, nan_val, 1.0));
|
|
try std.testing.expectEqual(@as(T, 1.0), generic_fmin(T, 1.0, nan_val));
|
|
|
|
try std.testing.expectEqual(@as(T, 1.0), generic_fmin(T, 1.0, 10.0));
|
|
try std.testing.expectEqual(@as(T, -1.0), generic_fmin(T, 1.0, -1.0));
|
|
}
|
|
}
|