zig/lib/std/special/compiler_rt/divsf3_test.zig
Andrew Kelley ed36dbbd9c
mv std/ lib/
that's all this commit does. further commits will fix cli flags and
such.

see #2221
2019-09-25 23:35:41 -04:00

35 lines
915 B
Zig

// Ported from:
//
// https://github.com/llvm/llvm-project/commit/d674d96bc56c0f377879d01c9d8dfdaaa7859cdb/compiler-rt/test/builtins/Unit/divsf3_test.c
const __divsf3 = @import("divsf3.zig").__divsf3;
const testing = @import("std").testing;
fn compareResultF(result: f32, expected: u32) bool {
const rep = @bitCast(u32, result);
if (rep == expected) {
return true;
}
// test other possible NaN representation(signal NaN)
else if (expected == 0x7fc00000) {
if ((rep & 0x7f800000) == 0x7f800000 and
(rep & 0x7fffff) > 0)
{
return true;
}
}
return false;
}
fn test__divsf3(a: f32, b: f32, expected: u32) void {
const x = __divsf3(a, b);
const ret = compareResultF(x, expected);
testing.expect(ret == true);
}
test "divsf3" {
test__divsf3(1.0, 3.0, 0x3EAAAAAB);
test__divsf3(2.3509887e-38, 2.0, 0x00800000);
}