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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.
48 lines
2 KiB
C
48 lines
2 KiB
C
/*===---- __wmmintrin_pclmul.h - PCMUL 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 __WMMINTRIN_H
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#error "Never use <__wmmintrin_pclmul.h> directly; include <wmmintrin.h> instead."
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#endif
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#ifndef __WMMINTRIN_PCLMUL_H
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#define __WMMINTRIN_PCLMUL_H
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/// Multiplies two 64-bit integer values, which are selected from source
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/// operands using the immediate-value operand. The multiplication is a
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/// carry-less multiplication, and the 128-bit integer product is stored in
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/// the destination.
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///
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/// \headerfile <x86intrin.h>
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///
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/// \code
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/// __m128i _mm_clmulepi64_si128(__m128i X, __m128i Y, const int I);
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/// \endcode
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///
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/// This intrinsic corresponds to the <c> VPCLMULQDQ </c> instruction.
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///
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/// \param X
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/// A 128-bit vector of [2 x i64] containing one of the source operands.
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/// \param Y
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/// A 128-bit vector of [2 x i64] containing one of the source operands.
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/// \param I
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/// An immediate value specifying which 64-bit values to select from the
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/// operands. Bit 0 is used to select a value from operand \a X, and bit
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/// 4 is used to select a value from operand \a Y: \n
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/// Bit[0]=0 indicates that bits[63:0] of operand \a X are used. \n
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/// Bit[0]=1 indicates that bits[127:64] of operand \a X are used. \n
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/// Bit[4]=0 indicates that bits[63:0] of operand \a Y are used. \n
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/// Bit[4]=1 indicates that bits[127:64] of operand \a Y are used.
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/// \returns The 128-bit integer vector containing the result of the carry-less
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/// multiplication of the selected 64-bit values.
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#define _mm_clmulepi64_si128(X, Y, I) \
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((__m128i)__builtin_ia32_pclmulqdq128((__v2di)(__m128i)(X), \
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(__v2di)(__m128i)(Y), (char)(I)))
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#endif /* __WMMINTRIN_PCLMUL_H */
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