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use AVX instructions for XOR in AES-CBC if applicable

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orignal 2016-12-15 14:42:26 -05:00
parent 0edc149ecc
commit 38d85a49e7
1 changed files with 12 additions and 1 deletions
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13
Crypto.h
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@ -76,7 +76,18 @@ namespace crypto
void operator^=(const ChipherBlock& other) // XOR void operator^=(const ChipherBlock& other) // XOR
{ {
#if defined(__x86_64__) || defined(__SSE__) // for Intel x84 or with SSE #if defined(__AVX__) // AVX
__asm__
(
"vmovups (%[buf]), %%xmm0 \n"
"vmovups (%[other]), %%xmm1 \n"
"vxorps %%xmm0, %%xmm1, %%xmm0 \n"
"vmovups %%xmm0, (%[buf]) \n"
:
: [buf]"r"(buf), [other]"r"(other.buf)
: "%xmm0", "%xmm1", "memory"
);
#elif defined(__SSE__) // SSE
__asm__ __asm__
( (
"movups (%[buf]), %%xmm0 \n" "movups (%[buf]), %%xmm0 \n"