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0e3ee98ff6
ext-cryptopp/cpu.h
Jeffrey Walton 0e3ee98ff6 Fixed Clang 3.4 compiler error on Linux
2015-12-25 08:00:05 -05:00

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// cpu.h - written and placed in the public domain by Wei Dai
//! \file
//! \headerfile cpu.h
//! \brief Classes, functions, intrinsics and features for X86, X32 nd X64 assembly
#ifndef CRYPTOPP_CPU_H
#define CRYPTOPP_CPU_H
#include "config.h"
#ifdef CRYPTOPP_GENERATE_X64_MASM
#define CRYPTOPP_X86_ASM_AVAILABLE
#define CRYPTOPP_BOOL_X64 1
#define CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE 1
#define NAMESPACE_END
#else
# if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE
# include <emmintrin.h>
# endif
#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
#if !defined(__GNUC__) || defined(__SSSE3__) || defined(__INTEL_COMPILER)
#include <tmmintrin.h>
#else
NAMESPACE_BEGIN(CryptoPP)
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_shuffle_epi8 (__m128i a, __m128i b)
{
asm ("pshufb %1, %0" : "+x"(a) : "xm"(b));
return a;
}
NAMESPACE_END
#endif // tmmintrin.h
#if !defined(__GNUC__) || defined(__SSE4_1__) || defined(__INTEL_COMPILER)
#include <smmintrin.h>
#else
NAMESPACE_BEGIN(CryptoPP)
__inline int __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_extract_epi32 (__m128i a, const int i)
{
int r;
asm ("pextrd %2, %1, %0" : "=rm"(r) : "x"(a), "i"(i));
return r;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_insert_epi32 (__m128i a, int b, const int i)
{
asm ("pinsrd %2, %1, %0" : "+x"(a) : "rm"(b), "i"(i));
return a;
}
NAMESPACE_END
#endif // smmintrin.h
#if !defined(__GNUC__) || (defined(__AES__) && defined(__PCLMUL__)) || defined(__INTEL_COMPILER)
#include <wmmintrin.h>
#else
NAMESPACE_BEGIN(CryptoPP)
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_clmulepi64_si128 (__m128i a, __m128i b, const int i)
{
asm ("pclmulqdq %2, %1, %0" : "+x"(a) : "xm"(b), "i"(i));
return a;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aeskeygenassist_si128 (__m128i a, const int i)
{
__m128i r;
asm ("aeskeygenassist %2, %1, %0" : "=x"(r) : "xm"(a), "i"(i));
return r;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aesimc_si128 (__m128i a)
{
__m128i r;
asm ("aesimc %1, %0" : "=x"(r) : "xm"(a));
return r;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aesenc_si128 (__m128i a, __m128i b)
{
asm ("aesenc %1, %0" : "+x"(a) : "xm"(b));
return a;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aesenclast_si128 (__m128i a, __m128i b)
{
asm ("aesenclast %1, %0" : "+x"(a) : "xm"(b));
return a;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aesdec_si128 (__m128i a, __m128i b)
{
asm ("aesdec %1, %0" : "+x"(a) : "xm"(b));
return a;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aesdeclast_si128 (__m128i a, __m128i b)
{
asm ("aesdeclast %1, %0" : "+x"(a) : "xm"(b));
return a;
}
NAMESPACE_END
#endif // wmmintrin.h
#endif // CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
NAMESPACE_BEGIN(CryptoPP)
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64
#define CRYPTOPP_CPUID_AVAILABLE
// these should not be used directly
extern CRYPTOPP_DLL bool g_x86DetectionDone;
extern CRYPTOPP_DLL bool g_hasMMX;
extern CRYPTOPP_DLL bool g_hasISSE;
extern CRYPTOPP_DLL bool g_hasSSE2;
extern CRYPTOPP_DLL bool g_hasSSSE3;
extern CRYPTOPP_DLL bool g_hasAESNI;
extern CRYPTOPP_DLL bool g_hasCLMUL;
extern CRYPTOPP_DLL bool g_isP4;
extern CRYPTOPP_DLL bool g_hasRDRAND;
extern CRYPTOPP_DLL bool g_hasRDSEED;
extern CRYPTOPP_DLL word32 g_cacheLineSize;
CRYPTOPP_DLL void CRYPTOPP_API DetectX86Features();
CRYPTOPP_DLL bool CRYPTOPP_API CpuId(word32 input, word32 output[4]);
inline bool HasMMX()
{
#if CRYPTOPP_BOOL_X64
return true;
#else
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasMMX;
#endif
}
inline bool HasISSE()
{
#if CRYPTOPP_BOOL_X64
return true;
#else
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasISSE;
#endif
}
inline bool HasSSE2()
{
#if CRYPTOPP_BOOL_X64
return true;
#else
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasSSE2;
#endif
}
inline bool HasSSSE3()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasSSSE3;
}
inline bool HasAESNI()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasAESNI;
}
inline bool HasCLMUL()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasCLMUL;
}
inline bool IsP4()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_isP4;
}
inline bool HasRDRAND()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasRDRAND;
}
inline bool HasRDSEED()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasRDSEED;
}
inline int GetCacheLineSize()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_cacheLineSize;
}
#else
inline int GetCacheLineSize()
{
return CRYPTOPP_L1_CACHE_LINE_SIZE;
}
#endif
#endif
#ifdef CRYPTOPP_GENERATE_X64_MASM
#define AS1(x) x*newline*
#define AS2(x, y) x, y*newline*
#define AS3(x, y, z) x, y, z*newline*
#define ASS(x, y, a, b, c, d) x, y, a*64+b*16+c*4+d*newline*
#define ASL(x) label##x:*newline*
#define ASJ(x, y, z) x label##y*newline*
#define ASC(x, y) x label##y*newline*
#define AS_HEX(y) 0##y##h
#elif defined(_MSC_VER) || defined(__BORLANDC__)
#define CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY
#define AS1(x) __asm {x}
#define AS2(x, y) __asm {x, y}
#define AS3(x, y, z) __asm {x, y, z}
#define ASS(x, y, a, b, c, d) __asm {x, y, (a)*64+(b)*16+(c)*4+(d)}
#define ASL(x) __asm {label##x:}
#define ASJ(x, y, z) __asm {x label##y}
#define ASC(x, y) __asm {x label##y}
#define CRYPTOPP_NAKED __declspec(naked)
#define AS_HEX(y) 0x##y
#else
#define CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY
#if defined(CRYPTOPP_CLANG_VERSION) || defined(CRYPTOPP_APPLE_CLANG_VERSION)
#define NEW_LINE "\n"
#define INTEL_PREFIX ".intel_syntax;"
#define INTEL_NOPREFIX ".intel_syntax;"
#define ATT_PREFIX ".att_syntax;"
#define ATT_NOPREFIX ".att_syntax;"
#else
#define NEW_LINE
#define INTEL_PREFIX ".intel_syntax prefix;"
#define INTEL_NOPREFIX ".intel_syntax noprefix;"
#define ATT_PREFIX ".att_syntax prefix;"
#define ATT_NOPREFIX ".att_syntax noprefix;"
#endif
// define these in two steps to allow arguments to be expanded
#define GNU_AS1(x) #x ";" NEW_LINE
#define GNU_AS2(x, y) #x ", " #y ";" NEW_LINE
#define GNU_AS3(x, y, z) #x ", " #y ", " #z ";" NEW_LINE
#define GNU_ASL(x) "\n" #x ":" NEW_LINE
#define GNU_ASJ(x, y, z) #x " " #y #z ";" NEW_LINE
#define AS1(x) GNU_AS1(x)
#define AS2(x, y) GNU_AS2(x, y)
#define AS3(x, y, z) GNU_AS3(x, y, z)
#define ASS(x, y, a, b, c, d) #x ", " #y ", " #a "*64+" #b "*16+" #c "*4+" #d ";"
#define ASL(x) GNU_ASL(x)
#define ASJ(x, y, z) GNU_ASJ(x, y, z)
#define ASC(x, y) #x " " #y ";"
#define CRYPTOPP_NAKED
#define AS_HEX(y) 0x##y
#endif
#define IF0(y)
#define IF1(y) y
// Should be confined to GCC, but its used to help manage Clang 3.4 compiler error.
// Also see LLVM Bug 24232, http://llvm.org/bugs/show_bug.cgi?id=24232 .
#ifndef INTEL_PREFIX
#define INTEL_PREFIX
#endif
#ifndef INTEL_NOPREFIX
#define INTEL_NOPREFIX
#endif
#ifndef ATT_PREFIX
#define ATT_PREFIX
#endif
#ifndef ATT_NOPREFIX
#define ATT_NOPREFIX
#endif
#ifdef CRYPTOPP_GENERATE_X64_MASM
#define ASM_MOD(x, y) ((x) MOD (y))
#define XMMWORD_PTR XMMWORD PTR
#else
// GNU assembler doesn't seem to have mod operator
#define ASM_MOD(x, y) ((x)-((x)/(y))*(y))
// GAS 2.15 doesn't support XMMWORD PTR. it seems necessary only for MASM
#define XMMWORD_PTR
#endif
#if CRYPTOPP_BOOL_X86
#define AS_REG_1 ecx
#define AS_REG_2 edx
#define AS_REG_3 esi
#define AS_REG_4 edi
#define AS_REG_5 eax
#define AS_REG_6 ebx
#define AS_REG_7 ebp
#define AS_REG_1d ecx
#define AS_REG_2d edx
#define AS_REG_3d esi
#define AS_REG_4d edi
#define AS_REG_5d eax
#define AS_REG_6d ebx
#define AS_REG_7d ebp
#define WORD_SZ 4
#define WORD_REG(x) e##x
#define WORD_PTR DWORD PTR
#define AS_PUSH_IF86(x) AS1(push e##x)
#define AS_POP_IF86(x) AS1(pop e##x)
#define AS_JCXZ jecxz
#elif CRYPTOPP_BOOL_X32
#define AS_REG_1 ecx
#define AS_REG_2 edx
#define AS_REG_3 r8d
#define AS_REG_4 r9d
#define AS_REG_5 eax
#define AS_REG_6 r10d
#define AS_REG_7 r11d
#define AS_REG_1d ecx
#define AS_REG_2d edx
#define AS_REG_3d r8d
#define AS_REG_4d r9d
#define AS_REG_5d eax
#define AS_REG_6d r10d
#define AS_REG_7d r11d
#define WORD_SZ 4
#define WORD_REG(x) e##x
#define WORD_PTR DWORD PTR
#define AS_PUSH_IF86(x) AS1(push r##x)
#define AS_POP_IF86(x) AS1(pop r##x)
#define AS_JCXZ jecxz
#elif CRYPTOPP_BOOL_X64
#ifdef CRYPTOPP_GENERATE_X64_MASM
#define AS_REG_1 rcx
#define AS_REG_2 rdx
#define AS_REG_3 r8
#define AS_REG_4 r9
#define AS_REG_5 rax
#define AS_REG_6 r10
#define AS_REG_7 r11
#define AS_REG_1d ecx
#define AS_REG_2d edx
#define AS_REG_3d r8d
#define AS_REG_4d r9d
#define AS_REG_5d eax
#define AS_REG_6d r10d
#define AS_REG_7d r11d
#else
#define AS_REG_1 rdi
#define AS_REG_2 rsi
#define AS_REG_3 rdx
#define AS_REG_4 rcx
#define AS_REG_5 r8
#define AS_REG_6 r9
#define AS_REG_7 r10
#define AS_REG_1d edi
#define AS_REG_2d esi
#define AS_REG_3d edx
#define AS_REG_4d ecx
#define AS_REG_5d r8d
#define AS_REG_6d r9d
#define AS_REG_7d r10d
#endif
#define WORD_SZ 8
#define WORD_REG(x) r##x
#define WORD_PTR QWORD PTR
#define AS_PUSH_IF86(x)
#define AS_POP_IF86(x)
#define AS_JCXZ jrcxz
#endif
// helper macro for stream cipher output
#define AS_XMM_OUTPUT4(labelPrefix, inputPtr, outputPtr, x0, x1, x2, x3, t, p0, p1, p2, p3, increment)\
AS2( test inputPtr, inputPtr)\
ASC( jz, labelPrefix##3)\
AS2( test inputPtr, 15)\
ASC( jnz, labelPrefix##7)\
AS2( pxor xmm##x0, [inputPtr+p0*16])\
AS2( pxor xmm##x1, [inputPtr+p1*16])\
AS2( pxor xmm##x2, [inputPtr+p2*16])\
AS2( pxor xmm##x3, [inputPtr+p3*16])\
AS2( add inputPtr, increment*16)\
ASC( jmp, labelPrefix##3)\
ASL(labelPrefix##7)\
AS2( movdqu xmm##t, [inputPtr+p0*16])\
AS2( pxor xmm##x0, xmm##t)\
AS2( movdqu xmm##t, [inputPtr+p1*16])\
AS2( pxor xmm##x1, xmm##t)\
AS2( movdqu xmm##t, [inputPtr+p2*16])\
AS2( pxor xmm##x2, xmm##t)\
AS2( movdqu xmm##t, [inputPtr+p3*16])\
AS2( pxor xmm##x3, xmm##t)\
AS2( add inputPtr, increment*16)\
ASL(labelPrefix##3)\
AS2( test outputPtr, 15)\
ASC( jnz, labelPrefix##8)\
AS2( movdqa [outputPtr+p0*16], xmm##x0)\
AS2( movdqa [outputPtr+p1*16], xmm##x1)\
AS2( movdqa [outputPtr+p2*16], xmm##x2)\
AS2( movdqa [outputPtr+p3*16], xmm##x3)\
ASC( jmp, labelPrefix##9)\
ASL(labelPrefix##8)\
AS2( movdqu [outputPtr+p0*16], xmm##x0)\
AS2( movdqu [outputPtr+p1*16], xmm##x1)\
AS2( movdqu [outputPtr+p2*16], xmm##x2)\
AS2( movdqu [outputPtr+p3*16], xmm##x3)\
ASL(labelPrefix##9)\
AS2( add outputPtr, increment*16)
NAMESPACE_END
#endif
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