Fix generation of f16 special float ops #7541
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Due to a bug in the special float builtin function declarations DXC never generated fp16 variants of isnan, isinf, and isfinite. This corrects the issue by making the functions take float_like arguments instead of float arguments. Fixes microsoft#7496 ../tools/clang/test/CodeGenDXIL/Ops/SpecialFloat.hlsl
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Dropped this back to a draft. We've found some drivers in the wild that crash on this, so we'll need to provide alternate lowering for existing shader models and work with driver vendors to deploy fixes. |
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Due to a bug in the special float builtin function declarations DXC never generated fp16 variants of isnan, isinf, and isfinite. This corrects the issue by making the functions take float_like arguments instead of float arguments.
Fixes #7496