llvm-project.git/libc/src/math/generic/hypotf.cpp, branch users/nico/python-2

[libc] Provide more fine-grained control of FMA instruction for ARM targets. (#130700)

2025-03-11T14:17:34+00:00

[libc][math] Fix signaling nan handling of hypot(f) and improve hypotf performance. (#99432)

2024-07-19T14:40:44+00:00

The errors were reported by Paul Zimmermann with the CORE-MATH project's
test suites:
```
zimmerma@tartine:/tmp/core-math$ CORE_MATH_CHECK_STD=true LIBM=$L ./check.sh hypot
Running worst cases check in --rndn mode...
FAIL x=snan y=inf ref=qnan z=inf
Running worst cases check in --rndz mode...
FAIL x=snan y=inf ref=qnan z=inf
Running worst cases check in --rndu mode...
FAIL x=snan y=inf ref=qnan z=inf
Running worst cases check in --rndd mode...
Spurious inexact exception for x=0x1.ffffffffffffep+24 y=0x1p+0 (z=0x1.0000000000001p+25)
```

[libc] Migrate to using LIBC_NAMESPACE_DECL for namespace declaration (#98597)

2024-07-12T16:28:41+00:00

This is a part of #97655.

Revert "[libc] Migrate to using LIBC_NAMESPACE_DECL for namespace declaration" (#98593)

2024-07-12T07:12:13+00:00

Reverts llvm/llvm-project#98075

bots are broken

[libc] Migrate to using LIBC_NAMESPACE_DECL for namespace declaration (#98075)

2024-07-11T19:35:22+00:00

This is a part of #97655.

[libc][math][c23] Add f16sqrtf C23 math function (#95251)

2024-06-13T16:57:24+00:00

Part of #95250.

[libc] fix more readability-identifier-naming lints (#83914)

2024-03-05T16:15:56+00:00

Found via:

    $ ninja -k2000 libc-lint 2>&1 | grep readability-identifier-naming

Auto fixed via:

    $ clang-tidy -p build/compile_commands.json \
      -checks="-*,readability-identifier-naming" \
       --fix

This doesn't fix all instances, just the obvious simple cases where it makes
sense to change the identifier names.  Subsequent PRs will fix up the
stragglers.

[libc][NFC] Move functions from `FPBits` to `FPRep`, make `bits` member private (#79974)

2024-01-30T14:25:18+00:00

[libc][NFC] Remove `FPBits` cast operator (#79142)

2024-01-23T16:30:19+00:00

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.

[libc][NFC] Rename `MANTISSA_WIDTH` in `FRACTION_LEN` (#75489)

2023-12-15T12:57:35+00:00

This one might be a bit controversial since the terminology has been
introduced from the start but I think `FRACTION_LEN` is a better name
here. AFAICT it really is "the number of bits after the decimal dot when
the number is in normal form."

`MANTISSA_WIDTH` is less precise as it's unclear whether we take the
leading bit into account.
This patch also renames most of the properties to use the `_LEN` suffix
and fixes useless casts or variables.