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Guard use of X86 ASM for ARM, MIPS and other platforms 

In the bigger picture, the code to use inline ASM when intrinsics are not available still needs to be checked-in. Its a big change since we moved into SSE4, AVX and SHA. Design changes are still being evaluated, and its still being tested.
pull/424/merge
Jeffrey Walton 2017-06-06 09:39:46 -04:00
parent 429047a8e9
commit 1565020bfd
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1 changed files with 2 additions and 1 deletions
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crc.cpp
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@ -13,7 +13,7 @@ NAMESPACE_BEGIN(CryptoPP)
# undef CRYPTOPP_BOOL_SSE4_INTRINSICS_AVAILABLE
#endif
// Use inline ASM to provide the instructions when the user omits -march=native or -msse4.2
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64
#if (CRYPTOPP_GCC_VERSION >= 40300 || __INTEL_COMPILER >= 1000 || __SUNPRO_CC >= 0x5110 || CRYPTOPP_LLVM_CLANG_VERSION >= 20300 || CRYPTOPP_APPLE_CLANG_VERSION >= 40000) && !defined(__SSE4_2__)
GCC_INLINE unsigned int GCC_INLINE_ATTRIB
MM_CRC32_U8(unsigned int crc, unsigned char val)
@ -38,6 +38,7 @@ MM_CRC32_U32(unsigned int crc, unsigned int val)
#define MM_CRC32_U16(a,b) _mm_crc32_u16(a,b)
#define MM_CRC32_U32(a,b) _mm_crc32_u32(a,b)
#endif
#endif // X86/X32/X64
/* Table of CRC-32's of all single byte values (made by makecrc.c) */
const word32 CRC32::m_tab[] = {