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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.
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/*===---- mwaitxintrin.h - MONITORX/MWAITX 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 __X86INTRIN_H
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#error "Never use <mwaitxintrin.h> directly; include <x86intrin.h> instead."
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#endif
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#ifndef __MWAITXINTRIN_H
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#define __MWAITXINTRIN_H
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/* Define the default attributes for the functions in this file. */
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#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("mwaitx")))
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/// Establishes a linear address memory range to be monitored and puts
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/// the processor in the monitor event pending state. Data stored in the
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/// monitored address range causes the processor to exit the pending state.
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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 MONITORX instruction.
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///
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/// \param __p
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/// The memory range to be monitored. The size of the range is determined by
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/// CPUID function 0000_0005h.
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/// \param __extensions
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/// Optional extensions for the monitoring state.
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/// \param __hints
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/// Optional hints for the monitoring state.
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static __inline__ void __DEFAULT_FN_ATTRS
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_mm_monitorx(void * __p, unsigned __extensions, unsigned __hints)
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{
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__builtin_ia32_monitorx(__p, __extensions, __hints);
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}
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/// Used with the \c MONITORX instruction to wait while the processor is in
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/// the monitor event pending state. Data stored in the monitored address
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/// range, or an interrupt, causes the processor to exit the pending state.
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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 MWAITX instruction.
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///
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/// \param __extensions
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/// Optional extensions for the monitoring state, which can vary by
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/// processor.
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/// \param __hints
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/// Optional hints for the monitoring state, which can vary by processor.
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static __inline__ void __DEFAULT_FN_ATTRS
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_mm_mwaitx(unsigned __extensions, unsigned __hints, unsigned __clock)
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{
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__builtin_ia32_mwaitx(__extensions, __hints, __clock);
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}
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#undef __DEFAULT_FN_ATTRS
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#endif /* __MWAITXINTRIN_H */
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