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Metal: test whether negative zero values are preserved by the existing Slang functions #4113

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jkwak-work opened this issue May 6, 2024 · 0 comments
Open

Metal: test whether negative zero values are preserved by the existing Slang functions #4113

jkwak-work opened this issue May 6, 2024 · 0 comments
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goal:quality & productivity Quality issues and issues that impact our productivity coding day to day inside slang kind:testing Improvements and additions to testing

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@jkwak-work
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jkwak-work commented May 6, 2024 •
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The math functions in Metal treat a negative zero differently from a positive zero.
The current Slang functions may not preserve the negative-ness of a zero value.
We need to test and make sure we respect negative zero values.

When targeting Metal and the input Slang shader calls non-native functions, we don't want to loss the sign-ness of negative zeros.
@jkwak-work jkwak-work added goal:quality & productivity Quality issues and issues that impact our productivity coding day to day inside slang kind:testing Improvements and additions to testing labels May 6, 2024
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