OverMighty
127349fcba
[libc][math] Add floating-point cast independent of compiler runtime ( #105152 )
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Fixes build and tests with compiler-rt on x86.
2024-09-23 19:35:39 +02:00
OverMighty
81ce796095
[libc][math][c23] Enable C23 _Float16 math functions on GPUs ( #99248 )
2024-07-25 21:09:49 +02:00
OverMighty
e7f8d4be5a
[libc][math] Optimize maximum and minimum functions using builtins when available ( #100002 )
2024-07-23 23:59:55 +02:00
OverMighty
4531f82c1a
[libc][math] Optimize nearest integer functions using builtins when available ( #98376 )
2024-07-15 21:49:47 +02:00
Petr Hosek
b8bbc57b68
[libc] Use -nostdlibinc in the full build mode ( #97461 )
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This avoids accidentally including system headers.
2024-07-02 12:34:06 -07:00
OverMighty
0eb9e021b1
[libc][math][c23] Add fabsf16 C23 math function ( #93567 )
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cc @lntue
2024-05-30 15:37:15 -04:00
Guillaume Chatelet
75fb825bcc
[libc][NFC] Rename LIBC_COMPILER_HAS_FLOAT128 to LIBC_TYPES_HAS_FLOAT128 ( #83395 )
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Umbrella bug #83182
2024-02-29 21:59:58 +01:00
Joseph Huber
69c0b2febe
[libc][NFC] Remove all trailing spaces from libc ( #82831 )
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Summary:
There are a lot of random training spaces on various lines. This patch
just got rid of all of them with `sed 's/\ \+$//g'.
2024-02-23 16:34:00 -06:00
lntue
84277fe90f
[libc][stdfix] Generate stdfix.h header with fixed point precision macros according to ISO/IEC TR 18037:2008 standard, and add fixed point type support detection. ( #81255 )
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Fixed point extension standard:
https://standards.iso.org/ittf/PubliclyAvailableStandards/c051126_ISO_IEC_TR_18037_2008.zip
2024-02-13 16:48:14 -05:00
lntue
029bfd6329
[libc] Replace -nostdlib++ flag when building with gcc and add placement new operator to HermeticTestUtils.cpp. ( #78906 )
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`-nostdlib++` is a clang-only flag. Replacing it with `-nostdlib` when
building with gcc.
2024-01-22 19:27:27 -05:00
Nick Desaulniers
1d5c16d780
[libc] default enable -ftrivial-auto-var-init=pattern ( #78776 )
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Usage of uninitialized memory is a top memory safety issue in C++ codebases.
Help mitigate this somewhat by default initialize stack allocations to a
pattern (0xAA repeating).
Clang has received optimizations to sink these into control flow paths that
access such values to minimize the overhead of these added initializations.
If there's a measurable slowdown, we can add
-ftrivial-auto-var-init-max-size=<N> for some value N bytes if we have any
large stack allocations, or add attribute uninitialized to any variable
declarations.
Unsupported until GCC 12.1 / Clang 8.
Increases file size of libc.a from a full build by +8.79Ki (+0.2%).
2024-01-22 14:55:51 -08:00
lntue
3f906f513e
[libc][math] Add initial support for C23 float128 math functions, starting with copysignf128. ( #71731 )
2023-11-10 14:32:59 -05:00
