10 Commits

Author SHA1 Message Date
michaelrj-google
3eb1e6d8e9
[libc] Move libc_errno inside of LIBC_NAMESPACE (#80774)
Having libc_errno outside of the namespace causes versioning issues when
trying to link the tests against LLVM-libc. Most of this patch is just
moving libc_errno inside the namespace in tests. This isn't necessary in
the function implementations since those are already inside the
namespace.
2024-02-06 10:36:05 +01:00
lntue
72ce629415
[libc] Add C23 limits.h header. (#78887) 2024-01-24 16:08:56 -05:00
Guillaume Chatelet
2856db0d3b
[libc][NFC] Remove FPBits cast operator (#79142)
The semantics for casting can range from "bitcast" (same representation)
to "different representation", to "type promotion". Here we remove the
cast operator and force usage of `get_val` as the only function to get
the floating point value, making the intent clearer and more consistent.
2024-01-23 17:30:19 +01:00
Guillaume Chatelet
b6bc9d72f6
[libc] Mass replace enclosing namespace (#67032)
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
2023-09-26 11:45:04 +02:00
Siva Chandra Reddy
4f1fe19df3 [libc] Make ErrnoSetterMatcher handle logging floating point values.
Along the way, couple of additional things have been done:

1. Move `ErrnoSetterMatcher.h` to `test/UnitTest` as all other matchers live
   there now.
2. `ErrnoSetterMatcher` ignores matching `errno` on GPUs.

Reviewed By: jhuber6

Differential Revision: https://reviews.llvm.org/D151129
2023-05-26 06:24:51 +00:00
Michael Jones
04a9c62554 [libc] move stdlib and stdio to new errno pattern
Fixes https://github.com/llvm/llvm-project/issues/61071

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D145191
2023-03-03 11:15:36 -08:00
Siva Chandra Reddy
af1315c28f [libc][NFC] Move UnitTest and IntegrationTest to the 'test' directory.
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.
2023-02-07 19:45:51 +00:00
Michael Jones
25226f3e4a [libc] apply formatting to tests
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
2021-12-22 10:53:25 -08:00
Michael Jones
1c92911e9e [libc] apply new lint rules
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
2021-12-07 10:49:47 -08:00
Michael Jones
87c016078a [libc] add atof, strtof and strtod
Add the string to floating point conversion functions.
Long doubles aren't supported yet, but floats and doubles are. The
primary algorithm used is the Eisel-Lemire ParseNumberF64 algorithm,
with the Simple Decimal Conversion algorithm as backup.

Links for more information on the algorithms:

Number Parsing at a Gigabyte per Second, Software: Practice and
Experience 51 (8), 2021 (https://arxiv.org/abs/2101.11408)
https://nigeltao.github.io/blog/2020/eisel-lemire.html
https://nigeltao.github.io/blog/2020/parse-number-f64-simple.html

Differential Revision: https://reviews.llvm.org/D109261
2021-10-18 16:10:03 -07:00