46716aada3
In particular, this gives us desired behavior for NaNs (all compares involving a NaN evaluate to true). This in turn allows writing the canonical isnan() function as "v != v". Added isnan() to the standard library as well.
24 lines
557 B
Plaintext
24 lines
557 B
Plaintext
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export uniform int width() { return programCount; }
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export void f_v(uniform float RET[]) {
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int errors = 0;
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foreach (i = 0 ... 65535) {
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unsigned int16 h = i;
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float f = half_to_float(i);
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h = float_to_half(f);
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int mismatches = (!isnan(f) && i != h);
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if (any(mismatches != 0))
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print("mismatch: orig int16 % -> float % -> half %\n", i, f, h);
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errors += reduce_add(mismatches);
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}
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RET[programIndex] = errors;
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}
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export void result(uniform float RET[]) {
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RET[programIndex] = 0;
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}
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