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optimize aes round command queue

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unroll AES round by hand to help the compiler to optimize the command queue
This commit is contained in:
psychocrypt
2017-12-03 16:40:42 +01:00
parent 2920e9a322
commit efc8dc447a
1 changed files with 22 additions and 8 deletions
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xmrstak/backend/amd/amd_gpu/opencl/wolf-aes.cl
+22 -8
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@@ -74,15 +74,29 @@ static const __constant uint AES0_C[256] =
#define BYTE(x, y) (amd_bfe((x), (y) << 3U, 8U))
uint4 AES_Round(const __local uint *AES0, const __local uint *AES1, const __local uint *AES2, const __local uint *AES3, const uint4 X, const uint4 key)
uint4 AES_Round(const __local uint *AES0, const __local uint *AES1, const __local uint *AES2, const __local uint *AES3, const uint4 X, uint4 key)
{
uint4 Y;
Y.s0 = AES0[BYTE(X.s0, 0)] ^ AES1[BYTE(X.s1, 1)] ^ AES2[BYTE(X.s2, 2)] ^ AES3[BYTE(X.s3, 3)];
Y.s1 = AES0[BYTE(X.s1, 0)] ^ AES1[BYTE(X.s2, 1)] ^ AES2[BYTE(X.s3, 2)] ^ AES3[BYTE(X.s0, 3)];
Y.s2 = AES0[BYTE(X.s2, 0)] ^ AES1[BYTE(X.s3, 1)] ^ AES2[BYTE(X.s0, 2)] ^ AES3[BYTE(X.s1, 3)];
Y.s3 = AES0[BYTE(X.s3, 0)] ^ AES1[BYTE(X.s0, 1)] ^ AES2[BYTE(X.s1, 2)] ^ AES3[BYTE(X.s2, 3)];
Y ^= key;
return(Y);
key.s0 ^= AES0[BYTE(X.s0, 0)];
key.s1 ^= AES0[BYTE(X.s1, 0)];
key.s2 ^= AES0[BYTE(X.s2, 0)];
key.s3 ^= AES0[BYTE(X.s3, 0)];
key.s0 ^= AES2[BYTE(X.s2, 2)];
key.s1 ^= AES2[BYTE(X.s3, 2)];
key.s2 ^= AES2[BYTE(X.s0, 2)];
key.s3 ^= AES2[BYTE(X.s1, 2)];
key.s0 ^= AES1[BYTE(X.s1, 1)];
key.s1 ^= AES1[BYTE(X.s2, 1)];
key.s2 ^= AES1[BYTE(X.s3, 1)];
key.s3 ^= AES1[BYTE(X.s0, 1)];
key.s0 ^= AES3[BYTE(X.s3, 3)];
key.s1 ^= AES3[BYTE(X.s0, 3)];
key.s2 ^= AES3[BYTE(X.s1, 3)];
key.s3 ^= AES3[BYTE(X.s2, 3)];
return key;
}
#endif