fix vector fmin/fmax non-fast/fast intrinsics NaN handling #49231
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fix vector fmin/fmax non-fast/fast intrinsics NaN handling This bugs shows up in release mode tests of `stdsimd`: rust-lang/stdarch#391 . The intrinsics are thoroughly tested there for roundoff errors, NaN, and overflow behavior. The problem was that the non-fast intrinsics where specifying `NoNaNs == true`, which meant that they don't support NaNs. This is incorrect, the non-fast intrinsics should handle NaNs properly. Also, the "fast" intrinsics where specifying `NoNaNs == false` which meant that they support NaNs and then fast-math, which probably disables this support. This was not intended either. I've added a comment specifying what the boolean flags do.
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fix vector fmin/fmax non-fast/fast intrinsics NaN handling This bugs shows up in release mode tests of `stdsimd`: rust-lang/stdarch#391 . The intrinsics are thoroughly tested there for roundoff errors, NaN, and overflow behavior. The problem was that the non-fast intrinsics where specifying `NoNaNs == true`, which meant that they don't support NaNs. This is incorrect, the non-fast intrinsics should handle NaNs properly. Also, the "fast" intrinsics where specifying `NoNaNs == false` which meant that they support NaNs and then fast-math, which probably disables this support. This was not intended either. I've added a comment specifying what the boolean flags do.
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This bugs shows up in release mode tests of
stdsimd: rust-lang/stdarch#391 . The intrinsics are thoroughly tested there for roundoff errors, NaN, and overflow behavior.The problem was that the non-fast intrinsics where specifying
NoNaNs == true, which meant that they don't support NaNs. This is incorrect, the non-fast intrinsics should handle NaNs properly.Also, the "fast" intrinsics where specifying
NoNaNs == falsewhich meant that they support NaNs and then fast-math, which probably disables this support. This was not intended either.I've added a comment specifying what the boolean flags do.