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small cleanup in crc32

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Martins Mozeiko
2017-11-05 02:41:52 -08:00
parent e987fe1c5d
commit 4e84a279a8
1 changed files with 12 additions and 12 deletions
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pkg2zip_crc32_x86.c
+12 -12
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@@ -297,23 +297,23 @@ uint32_t crc32_done_x86(crc32_ctx* ctx)
a = _mm_clmulepi64_si128(xmm0, fold, 0x10);
b = _mm_clmulepi64_si128(xmm0, fold, 0x01);
xmm1 = _mm_xor_si128(xmm1, a);
xmm1 = _mm_xor_si128(xmm1, b);
t = _mm_xor_si128(xmm1, a);
t = _mm_xor_si128(t, b);
a = _mm_clmulepi64_si128(xmm1, fold, 0x10);
b = _mm_clmulepi64_si128(xmm1, fold, 0x01);
xmm2 = _mm_xor_si128(xmm2, a);
xmm2 = _mm_xor_si128(xmm2, b);
a = _mm_clmulepi64_si128(t, fold, 0x10);
b = _mm_clmulepi64_si128(t, fold, 0x01);
t = _mm_xor_si128(xmm2, a);
t = _mm_xor_si128(t, b);
a = _mm_clmulepi64_si128(xmm2, fold, 0x10);
b = _mm_clmulepi64_si128(xmm2, fold, 0x01);
xmm3 = _mm_xor_si128(xmm3, a);
xmm3 = _mm_xor_si128(xmm3, b);
a = _mm_clmulepi64_si128(t, fold, 0x10);
b = _mm_clmulepi64_si128(t, fold, 0x01);
t = _mm_xor_si128(xmm3, a);
t = _mm_xor_si128(t, b);
fold = _mm_setr_epi32(0xccaa009e, 0x00000000, 0x63cd6124, 0x00000001);
a = _mm_clmulepi64_si128(xmm3, fold, 0);
b = _mm_srli_si128(xmm3, 8);
a = _mm_clmulepi64_si128(t, fold, 0);
b = _mm_srli_si128(t, 8);
a = _mm_xor_si128(a, b);
b = _mm_slli_si128(a, 4);