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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.
91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
/*===---- fxsrintrin.h - FXSR intrinsic ------------------------------------===
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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 <fxsrintrin.h> directly; include <immintrin.h> instead."
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#endif
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#ifndef __FXSRINTRIN_H
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#define __FXSRINTRIN_H
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#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("fxsr")))
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/// Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte
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/// memory region pointed to by the input parameter \a __p.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic corresponds to the <c> FXSAVE </c> instruction.
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///
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/// \param __p
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/// A pointer to a 512-byte memory region. The beginning of this memory
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/// region should be aligned on a 16-byte boundary.
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static __inline__ void __DEFAULT_FN_ATTRS
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_fxsave(void *__p)
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{
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__builtin_ia32_fxsave(__p);
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}
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/// Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte
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/// memory region pointed to by the input parameter \a __p. The contents of
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/// this memory region should have been written to by a previous \c _fxsave
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/// or \c _fxsave64 intrinsic.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic corresponds to the <c> FXRSTOR </c> instruction.
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///
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/// \param __p
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/// A pointer to a 512-byte memory region. The beginning of this memory
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/// region should be aligned on a 16-byte boundary.
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static __inline__ void __DEFAULT_FN_ATTRS
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_fxrstor(void *__p)
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{
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__builtin_ia32_fxrstor(__p);
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}
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#ifdef __x86_64__
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/// Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte
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/// memory region pointed to by the input parameter \a __p.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic corresponds to the <c> FXSAVE64 </c> instruction.
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///
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/// \param __p
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/// A pointer to a 512-byte memory region. The beginning of this memory
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/// region should be aligned on a 16-byte boundary.
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static __inline__ void __DEFAULT_FN_ATTRS
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_fxsave64(void *__p)
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{
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__builtin_ia32_fxsave64(__p);
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}
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/// Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte
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/// memory region pointed to by the input parameter \a __p. The contents of
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/// this memory region should have been written to by a previous \c _fxsave
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/// or \c _fxsave64 intrinsic.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic corresponds to the <c> FXRSTOR64 </c> instruction.
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///
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/// \param __p
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/// A pointer to a 512-byte memory region. The beginning of this memory
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/// region should be aligned on a 16-byte boundary.
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static __inline__ void __DEFAULT_FN_ATTRS
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_fxrstor64(void *__p)
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{
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__builtin_ia32_fxrstor64(__p);
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}
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#endif
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#undef __DEFAULT_FN_ATTRS
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#endif
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