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Provide way to specify threshold for -Wmisexcept #46534

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davidbolvansky opened this issue Aug 16, 2020 · 0 comments
Open

Provide way to specify threshold for -Wmisexcept #46534

davidbolvansky opened this issue Aug 16, 2020 · 0 comments
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bugzilla Issues migrated from bugzilla clang:driver 'clang' and 'clang++' user-facing binaries. Not 'clang-cl'

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@davidbolvansky
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Bugzilla Link 47190
Version trunk
OS Linux
CC @zygoloid

Extended Description

Nowdays, -Wmisexpect warns too much uselessly, eg.:

../lib/decompress/zstd_decompress_block.c:874:17: warning: Potential performance regression from use of __builtin_expect(): Annotation was correct on 90.49% (1747623 / 1931364) of profiled executions. [-Wmisexpect]

It would be great to provide way to specify threshold to stop this warning.

For example, with -Wmisexpect=70 we would not warn for case above.
@llvmbot llvmbot transferred this issue from llvm/llvm-bugzilla-archive Dec 10, 2021
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bugzilla Issues migrated from bugzilla clang:driver 'clang' and 'clang++' user-facing binaries. Not 'clang-cl'
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