[FP16] Implement f16x8.demote_{f64x2, f32x4}_zero.#8580
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brendandahl wants to merge 2 commits intoWebAssembly:mainfrom
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[FP16] Implement f16x8.demote_{f64x2, f32x4}_zero.#8580brendandahl wants to merge 2 commits intoWebAssembly:mainfrom
brendandahl wants to merge 2 commits intoWebAssembly:mainfrom
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| ;; inf -inf 0 0 0 0 0 0 | ||
| (v128.const i16x8 0x7c00 0xfc00 0 0 0 0 0 0)) | ||
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| (assert_return (invoke "f16x8.demote_f64x2_zero" |
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Should we include a case that loses precision (besides overflow)?
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I've added a few precision loss tests. While doing that I found conversions.wast spec test that covers a lot more. I'll copy that over in the future to get more coverage.
| ;; Edge cases: Infinities, NaNs, Zeros | ||
| (assert_return (invoke "f16x8.demote_f64x2_zero" | ||
| ;; inf -inf | ||
| (v128.const i64x2 0x7ff0000000000000 0xfff0000000000000)) |
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It looks like this NaN and the one below are canonical, can we have a case covering a non-canonical NaN?
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Since we don't have a f16 constant that we can use to test for nan:arithmetic I can't really add a stable test for this yet. I've added a todo once we resolve WebAssembly/half-precision#6
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