zig/lib/compiler_rt/truncsfhf2.zig
Cody Tapscott 0d533433e2 compiler_rt: Add missing f16 functions
This change also exposes some of the existing functions under both the
PPC-style names symbols and the compiler-rt-style names, since Zig
currently lowers softfloat calls to the latter.
2022-10-13 12:53:20 -07:00

22 lines
680 B
Zig

const common = @import("./common.zig");
const truncf = @import("./truncf.zig").truncf;
pub const panic = common.panic;
comptime {
if (common.gnu_f16_abi) {
@export(__truncsfhf2, .{ .name = "__gnu_f2h_ieee", .linkage = common.linkage });
} else if (common.want_aeabi) {
@export(__aeabi_f2h, .{ .name = "__aeabi_f2h", .linkage = common.linkage });
}
@export(__truncsfhf2, .{ .name = "__truncsfhf2", .linkage = common.linkage });
}
pub fn __truncsfhf2(a: f32) callconv(.C) common.F16T {
return @bitCast(common.F16T, truncf(f16, f32, a));
}
fn __aeabi_f2h(a: f32) callconv(.AAPCS) u16 {
return @bitCast(common.F16T, truncf(f16, f32, a));
}