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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.
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/*===---- pconfigintrin.h - X86 platform configuration ---------------------===
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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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#if !defined __X86INTRIN_H && !defined __IMMINTRIN_H
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#error "Never use <pconfigintrin.h> directly; include <x86intrin.h> instead."
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#endif
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#ifndef __PCONFIGINTRIN_H
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#define __PCONFIGINTRIN_H
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#define __PCONFIG_KEY_PROGRAM 0x00000001
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#if __has_extension(gnu_asm)
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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__("pconfig")))
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static __inline unsigned int __DEFAULT_FN_ATTRS
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_pconfig_u32(unsigned int __leaf, __SIZE_TYPE__ __d[])
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{
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unsigned int __result;
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__asm__ ("pconfig"
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: "=a" (__result), "=b" (__d[0]), "=c" (__d[1]), "=d" (__d[2])
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: "a" (__leaf), "b" (__d[0]), "c" (__d[1]), "d" (__d[2])
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: "cc");
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return __result;
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}
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#undef __DEFAULT_FN_ATTRS
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#endif /* __has_extension(gnu_asm) */
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#endif
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