Tests failed on fedora koji on s390x arch

[ghost]

https://kojipkgs.fedoraproject.org//work/tasks/4780/71404780/build.log
It is possible that the problem is with rust or the fact that it is a big endianness arch, but you should better know it then me.

failures:
---- impl_f32x4_recip_sqrt stdout ----
thread 'impl_f32x4_recip_sqrt' panicked at 'assertion failed: actual.is_nan().any()', tests/t_f32x4.rs:574:5
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace
---- impl_f32x4_sqrt stdout ----
thread 'impl_f32x4_sqrt' panicked at 'assertion failed: (left == right)
left: (-0.0, -0.0, -0.0, -0.0),
right: (inf, inf, inf, inf)', tests/t_f32x4.rs:614:5
failures:
impl_f32x4_recip_sqrt
impl_f32x4_sqrt
test result: FAILED. 46 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s

[Lokathor]

I've never tested this crate on big-endian honestly. There's probably numerous bugs on BE systems. I don't have any BE systems to test on but I'd be happy to accept a fix from anyone with such a system who makes a patch.

As I recall, those routines convert the float to u32, then do some bit operations, then convert back. If the byte order of floats and unsigned ints don't match then that could cause a problem for example.

[ghost]

With version 0.7.2 there is only one test that failed now.

failures:
---- test_software_sqrt stdout ----
thread 'test_software_sqrt' panicked at 'assertion failed: software_sqrt(f64::NAN).is_nan()', src/lib.rs:872:3

https://kojipkgs.fedoraproject.org//work/tasks/7394/79897394/build.log

[Lokathor]

That's a little concerning because I'm 99% sure this is from libm, but... we can fix that up with a early out I guess?

[Lokathor]

okay, 0.7.3 should fix that error at least, though other asserts in the same test are probably still an error since i don't have a local BE system to test on.

[ghost]

It correct the assertion problem. now there is only one test failing.

test test_software_sqrt ... FAILED
failures:
---- test_software_sqrt stdout ----
thread 'test_software_sqrt' panicked at 'assertion failed: (left == right)
left: 361379264997087600000000000000000000000000000000000000000000000000000000000000000000.0,
right: inf', src/lib.rs:876:3

https://kojipkgs.fedoraproject.org//work/tasks/9840/79899840/build.log

[Lokathor]

Yeah, that's just a few lines later in the same test. Since the function relies on transmuting multi-byte values it's sensitive to endian-ness.

it's probably possible to fix that with sufficient care.

[mcroomp]

This is fixed now and the build verification now includes MIPS bigendian

[Lokathor]

good news closing