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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.
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*===---- rtmintrin.h - RTM 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 <rtmintrin.h> directly; include <immintrin.h> instead."
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#endif
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#ifndef __RTMINTRIN_H
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#define __RTMINTRIN_H
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#define _XBEGIN_STARTED (~0u)
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#define _XABORT_EXPLICIT (1 << 0)
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#define _XABORT_RETRY (1 << 1)
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#define _XABORT_CONFLICT (1 << 2)
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#define _XABORT_CAPACITY (1 << 3)
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#define _XABORT_DEBUG (1 << 4)
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#define _XABORT_NESTED (1 << 5)
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#define _XABORT_CODE(x) (((x) >> 24) & 0xFF)
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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__("rtm")))
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static __inline__ unsigned int __DEFAULT_FN_ATTRS
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_xbegin(void)
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{
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return (unsigned int)__builtin_ia32_xbegin();
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}
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static __inline__ void __DEFAULT_FN_ATTRS
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_xend(void)
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{
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__builtin_ia32_xend();
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}
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#define _xabort(imm) __builtin_ia32_xabort((imm))
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#undef __DEFAULT_FN_ATTRS
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#endif /* __RTMINTRIN_H */
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