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This adds a new test fixture class FEnvSafeTest (usable as a base
class for other fixtures) that ensures each test doesn't perturb
the `fenv_t` state that the next test will start with. It also
provides types and methods tests can use to explicitly wrap code
under test either to check that it doesn't perturb the state or
to save and restore the state around particular test code.
All the fenv and math tests are updated to use this so that none
can affect another. Expectations that code under test and/or
tests themselves don't perturb state can be added later.
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Hello, this addresses #87863.
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64 bits versions
This patch enables the compilation of libc for rv32 by unifying the
current rv64 and rv32 implementation into a single rv implementation.
We updated the cmake file to match the new riscv32 arch and force
LIBC_TARGET_ARCHITECTURE to be "riscv" whenever we find "riscv32" or
"riscv64". This is required as LIBC_TARGET_ARCHITECTURE is used in the
path for several platform specific implementations.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D148797
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This is step 4 of
https://discourse.llvm.org/t/rfc-customizable-namespace-to-allow-testing-the-libc-when-the-system-libc-is-also-llvms-libc/73079
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Reviewed By: mikhail.ramalho
Differential Revision: https://reviews.llvm.org/D145560
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Reviewed By: lntue
Differential Revision: https://reviews.llvm.org/D145347
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This part of the effort to make all test related pieces into the `test`
directory. This helps is excluding test related pieces in a straight
forward manner if LLVM_INCLUDE_TESTS is OFF. Future patches will also move
the MPFR wrapper and testutils into the 'test' directory.
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Remove the redundant header FPUtil/FEnvUtils.h, use FPUtil/FEnvImpl.h header instead.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D120965
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Apply the formatting rules that were applied to the libc/src directory
to the libc/test directory, as well as the files in libc/utils that are
included by the tests. This does not include automated enforcement.
Reviewed By: sivachandra, lntue
Differential Revision: https://reviews.llvm.org/D116127
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This patch applies the lint rules described in the previous patch. There
was also a significant amount of effort put into manually fixing things,
since all of the templated functions, or structs defined in /spec, were
not updated and had to be handled manually.
Reviewed By: sivachandra, lntue
Differential Revision: https://reviews.llvm.org/D114302
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We may want to restrict the detected platforms to only `x86_64` and `aarch64`.
There are still custom detection in api.td but I don't think we can handle these:
- config/linux/api.td:205
- config/linux/api.td:199
Differential Revision: https://reviews.llvm.org/D112818
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This reverts commit a72e2499865b55cb007b63673100c06cc85faf97.
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We may want to restrict the detected platforms to only `x86_64` and `aarch64`.
There are still custom detection in api.td but I don't think we can handle these:
- config/linux/api.td:205
- config/linux/api.td:199
Differential Revision: https://reviews.llvm.org/D112818
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Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D112673
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Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D109538
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Some ctype functions are called from other libc functions (e.g. isspace
is used in atoi). By moving ctype_utils.h to __support it becomes easier
to include just the implementations of these functions. For these
reasons the implementation for isspace was moved into
ctype_utils as well.
FPUtils was moved to simplify the build order, and to clarify which
files are a part of the actual libc.
Many files were modified to accomodate these changes, mostly changing
the #include paths.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D107600
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TestHelpers.h pulls few pieces from LLVM libc's unittest framework
which aren't available on platforms like Fuchsia which use their own
unittest framework. So, by moving FPExceptMatcher to a different file
we can exclude LLVM libc specific pieces in a cleaner way.
In a later pass, it might make more sense to rename TestHelpers.h also
to FPMatcher.h. That way, we can make macros like EXPECT_FP_EQ to be
equivalent to EXPECT_EQ on platforms like Fuchsia.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D107129
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Fuchsia's death test framework runs the closure which can die in a
different thread. Hence, the FP exceptions which cause the closure to
die should be enalbed in the closure.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D106683
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Because Windows's pathnames are not case sensitive,
to avoid include conflicts between our header file FEnv.h and the
one from the C Standard library, <fenv.h>, the prior file was renamed.
The motive for the relabel came to fix this include error in
TestHelpers.cpp since a conflict arose with a file in the same
directory when #include <fenv.h> was being used.
Reviewed By: sivachandra, aeubanks
Differential Revision: https://reviews.llvm.org/D106470
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Since exceptions like FE_DIVBYZERO can raise FE_INEXACT, we need to
ensure that we don't raise FE_DIVBYZERO (or others which can also raise
FE_INEXACT) when FE_INEXACT is enabled.
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This new matcher does not use death tests to check if SIGFPE is raised.
Instead, that a SIGFPE was raised is checked using a SIGFPE signal handler.
Reviewed By: mcgrathr
Differential Revision: https://reviews.llvm.org/D106086
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Fuchsia's zxtest has a slightly different death test definition, and
this macro makes our death test API work on Fuchsia.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D95648
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Some libcs define non-standard FE_* macros and include them in
FE_ALL_EXCEPT. This change adjusts the fenv tests so that the
non-standard FE_* macros do not interfere when compiled with
fenv.h from another libc.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D95650
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Summary:
Having a consistent prefix makes selecting all of the llvm libc tests
easier on any platform that is also using the gtest framework.
This also modifies the TEST and TEST_F macros to enforce this change
moving forward.
Reviewers: sivachandra
Subscribers:
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Couple of helper functions enableExcept and disableExcept have been
added. In a later round, they will be used to implemented the GNU
extension functions feenableexcept and fedisableexcept.
Differential Revision: https://reviews.llvm.org/D92821
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