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https://github.com/jart/cosmopolitan.git
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c9152b6f14
This change switches c++ exception handling from sjlj to standard dwarf. It's needed because clang for aarch64 doesn't support sjlj. It turns out that libunwind had a bare-metal configuration that made this easy to do. This change gets the new experimental cosmocc -mclang flag in a state of working so well that it can now be used to build all of llamafile and it goes 3x faster in terms of build latency, without trading away any perf. The int_fast16_t and int_fast32_t types are now always defined as 32-bit in the interest of having more abi consistency between cosmocc -mgcc and -mclang mode.
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/*===---- adxintrin.h - ADX intrinsics -------------------------------------===
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*
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* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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* See https://llvm.org/LICENSE.txt for license information.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*
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*===-----------------------------------------------------------------------===
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*/
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#ifndef __IMMINTRIN_H
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#error "Never use <adxintrin.h> directly; include <immintrin.h> instead."
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#endif
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#ifndef __ADXINTRIN_H
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#define __ADXINTRIN_H
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/* Define the default attributes for the functions in this file. */
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#define __DEFAULT_FN_ATTRS \
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__attribute__((__always_inline__, __nodebug__, __target__("adx")))
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/* Use C++ inline semantics in C++, GNU inline for C mode. */
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#if defined(__cplusplus)
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#define __INLINE __inline
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#else
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#define __INLINE static __inline
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#endif
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/* Intrinsics that are available only if __ADX__ is defined. */
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/// Adds unsigned 32-bit integers \a __x and \a __y, plus 0 or 1 as indicated
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/// by the carry flag \a __cf. Stores the unsigned 32-bit sum in the memory
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/// at \a __p, and returns the 8-bit carry-out (carry flag).
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///
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/// \code{.operation}
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/// temp := (__cf == 0) ? 0 : 1
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/// Store32(__p, __x + __y + temp)
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/// result := CF
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/// \endcode
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///
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/// \headerfile <immintrin.h>
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///
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/// This intrinsic corresponds to the \c ADCX instruction.
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///
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/// \param __cf
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/// The 8-bit unsigned carry flag; any non-zero value indicates carry.
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/// \param __x
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/// A 32-bit unsigned addend.
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/// \param __y
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/// A 32-bit unsigned addend.
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/// \param __p
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/// Pointer to memory for storing the sum.
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/// \returns The 8-bit unsigned carry-out value.
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__INLINE unsigned char __DEFAULT_FN_ATTRS _addcarryx_u32(unsigned char __cf,
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unsigned int __x,
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unsigned int __y,
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unsigned int *__p) {
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return __builtin_ia32_addcarryx_u32(__cf, __x, __y, __p);
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}
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#ifdef __x86_64__
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/// Adds unsigned 64-bit integers \a __x and \a __y, plus 0 or 1 as indicated
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/// by the carry flag \a __cf. Stores the unsigned 64-bit sum in the memory
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/// at \a __p, and returns the 8-bit carry-out (carry flag).
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///
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/// \code{.operation}
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/// temp := (__cf == 0) ? 0 : 1
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/// Store64(__p, __x + __y + temp)
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/// result := CF
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/// \endcode
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///
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/// \headerfile <immintrin.h>
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///
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/// This intrinsic corresponds to the \c ADCX instruction.
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///
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/// \param __cf
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/// The 8-bit unsigned carry flag; any non-zero value indicates carry.
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/// \param __x
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/// A 64-bit unsigned addend.
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/// \param __y
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/// A 64-bit unsigned addend.
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/// \param __p
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/// Pointer to memory for storing the sum.
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/// \returns The 8-bit unsigned carry-out value.
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__INLINE unsigned char __DEFAULT_FN_ATTRS
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_addcarryx_u64(unsigned char __cf, unsigned long long __x,
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unsigned long long __y, unsigned long long *__p) {
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return __builtin_ia32_addcarryx_u64(__cf, __x, __y, __p);
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}
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#endif
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#if defined(__cplusplus)
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}
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#endif
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#undef __INLINE
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#undef __DEFAULT_FN_ATTRS
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#endif /* __ADXINTRIN_H */
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