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Add Altivec vector extraction tests

pull/703/head
Jeffrey Walton 2018-08-09 00:06:42 -04:00
parent 13b6dac31d
commit 5b89e774cc
2 changed files with 48 additions and 3 deletions
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18
ppc-simd.h
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@ -58,7 +58,7 @@ typedef __vector unsigned long long uint64x2_p;
#endif // POWER8 datatypes
#endif // ALTIVEC datatypes
// ALTIVEC and above
// Applies to all POWER machines
#if defined(CRYPTOPP_ALTIVEC_AVAILABLE) || defined(CRYPTOPP_DOXYGEN_PROCESSING)
/// \brief Reverse a vector
@ -269,6 +269,22 @@ inline uint64x2_p VectorShiftRight<0, uint64x2_p>(const uint64x2_p& vec)
}
#endif
template <class T>
inline T VectorGetLow(const T& val)
{
const T zero = {0};
const uint8x16_p mask = {16,16,16,16, 16,16,16,16, 8,9,10,11, 12,13,14,15 };
return (T)vec_perm(val, zero, mask);
}
template <class T>
inline T VectorGetHigh(const T& val)
{
const T zero = {0};
const uint8x16_p mask = {16,16,16,16, 16,16,16,16, 0,1,2,3, 4,5,6,7 };
return (T)vec_perm(val, zero, mask);
}
/// \brief Compare two vectors
/// \tparam T1 vector type
/// \tparam T2 vector type

33
validat1.cpp
View File

@ -1067,7 +1067,6 @@ bool TestHuffmanCodes()
bool TestAltivecOps()
{
std::cout << "\nTesting Altivec operations...\n\n";
bool pass1=true, pass2=true;
if (HasAltivec() == false)
{
@ -1082,6 +1081,7 @@ bool TestAltivecOps()
// Altivec/POWER4 without POWER7, like on an old PowerMac.
//********** Unaligned loads and stores **********//
bool pass1=true;
CRYPTOPP_ALIGN_DATA(16)
byte dest[20], src[20] = {23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4};
@ -1138,6 +1138,7 @@ bool TestAltivecOps()
std::cout << " Altivec loads and stores" << std::endl;
//********** Shifts **********//
bool pass2=true;
uint8x16_p val = {0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff};
@ -1183,7 +1184,35 @@ bool TestAltivecOps()
std::cout << "passed:";
std::cout << " Altivec left and right shifts" << std::endl;
return pass1 && pass2;
//********** Extraction **********//
bool pass3=true;
uint8x16_p ex1 = {0x1f,0x1e,0x1d,0x1c, 0x1b,0x1a,0x19,0x18,
0x17,0x16,0x15,0x14, 0x13,0x12,0x11,0x10};
uint8x16_p ex2 = {0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
0x17,0x16,0x15,0x14, 0x13,0x12,0x11,0x10};
uint8x16_p ex3 = {0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
0x1f,0x1e,0x1d,0x1c, 0x1b,0x1a,0x19,0x18};
pass3 = VectorEqual(ex2, VectorGetLow(ex1)) && pass3;
CRYPTOPP_ASSERT(pass3);
pass3 = VectorEqual(ex3, VectorGetHigh(ex1)) && pass3;
CRYPTOPP_ASSERT(pass3);
uint8x16_p ex4 = VectorShiftRight<8>(VectorShiftLeft<8>(ex1));
pass3 = VectorEqual(ex4, VectorGetLow(ex1)) && pass3;
CRYPTOPP_ASSERT(pass3);
uint8x16_p ex5 = VectorShiftRight<8>(ex1);
pass3 = VectorEqual(ex5, VectorGetHigh(ex1)) && pass3;
CRYPTOPP_ASSERT(pass3);
if (!pass3)
std::cout << "FAILED:";
else
std::cout << "passed:";
std::cout << " Altivec vector extraction" << std::endl;
return pass1 && pass2 && pass3;
}
#endif
#endif