Fix portable library build on Windows #13260
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/13260
Note: Links to docs will display an error until the docs builds have been completed. ❌ 5 New Failures, 1 Unrelated FailureAs of commit 6e6ab75 with merge base 4ce7078 ( NEW FAILURES - The following jobs have failed:
BROKEN TRUNK - The following job failed but were present on the merge base:👉 Rebase onto the `viable/strict` branch to avoid these failures
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GregoryComer
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@manuelcandales Any thoughts or preference on the approach used here? |
swolchok
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I was skeptical, but Google (and Godbolt https://godbolt.org/z/Tq8Tr9aWz) confirms this is a well-documented problem that happens when using MSVC. Thanks!
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Enable build of the portable operator library (and executor_runner, now that we have portable) on the Windows preset. There are a couple of patterns that weren't building on Windows. Both std::nan and std::signbit complain about ambiguous overload resolution when given an integer argument.
To solve the std::isnan issue, I introduced isnan_override in math_util.h, following the naming pattern from max_override / min_override / etc. in the same file. It adds a specialized branch for integers to avoid calling std::isnan. For std::signbit, I just locally specialized.