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Differential D29095

lib/msun/tests: Skip fenv_test:masking if exceptions can't be trapped
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Authored by arichardson on Mar 5 2021, 4:47 PM.
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Reviewers
ngie
dim
andrew
lwhsu
Commits
rG1f7e87f2d322: lib/msun/tests: Skip fenv_test:masking if exceptions can't be trapped
rG2b9dbcd390df: lib/msun/tests: Skip fenv_test:masking if exceptions can't be trapped
Summary

Some CPUs (e.g. AArch64 QEMU) cannot trap on floating point exceptions and
therefore ignore the writes to the floating point control register inside
feenableexcept(). If no exceptions are enabled after
feenableexcept(FE_ALL_EXCEPT), we can assume that the CPU does not
support exceptions and we can then skip the test.

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rS FreeBSD src repository - subversion
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Lint Passed
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No Test Coverage
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Buildable 37618
Build 34507: arc lint + arc unit

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lib/
msun/
tests/
22 lines

Diff 85224

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lib/msun/tests/fenv_test.c

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