c6768de2d6
Enable Non-determinism of float operations in Miri and change std tests Links to [#4208](https://github.com/rust-lang/miri/issues/4208) and [#3555](https://github.com/rust-lang/miri/issues/3555) in Miri. Non-determinism of floating point operations was disabled in rust-lang/rust#137594 because it breaks the tests and doc-tests in core/coretests and std. This PR enables some of them. This pr includes the following changes: - Enables the float non-determinism but with a lower relative error of 4ULP instead of 16ULP - These operations now have a fixed output based on the C23 standard, except the pow operations, this is tracked in [#4286](https://github.com/rust-lang/miri/issues/4286#issue-3010677983) - Changes tests that made incorrect assumptions about the operations, not to make that assumption anymore (from `assert_eq!` to `assert_approx_eq!`. - Changed the doctests of the stdlib of these operations to compare against fixed constants instead of `f*::EPSILON`, which now succeed with Miri and `-Zmiri-many-seeds` - Added a constant `APPROX_DELTA` in `std/tests/floats/f32.rs` which is used for approximation tests, but with a different value when run in Miri. This is to make these tests succeed. - Added tests in the float tests of Miri to test the C23 behaviour. Fixes https://github.com/rust-lang/miri/issues/4208 |
||
|---|---|---|
| .. | ||
| f16.rs | ||
| f32.rs | ||
| f64.rs | ||
| f128.rs | ||
| mod.rs | ||