Remove unnecessary type casting in functions. Tested on Ubuntu (14.04 x86_64) with "make test". "make test" results match the results with baseline. "Memcpy perf" results match the results with baseline.
Signed-off-by: Ravi Kerur <rkerur at gmail.com> --- .../common/include/arch/x86/rte_memcpy.h | 340 +++++++++++---------- 1 file changed, 175 insertions(+), 165 deletions(-) diff --git a/lib/librte_eal/common/include/arch/x86/rte_memcpy.h b/lib/librte_eal/common/include/arch/x86/rte_memcpy.h index 6a57426..839d4ec 100644 --- a/lib/librte_eal/common/include/arch/x86/rte_memcpy.h +++ b/lib/librte_eal/common/include/arch/x86/rte_memcpy.h @@ -106,8 +106,8 @@ rte_mov32(uint8_t *dst, const uint8_t *src) static inline void rte_mov64(uint8_t *dst, const uint8_t *src) { - rte_mov32((uint8_t *)dst + 0 * 32, (const uint8_t *)src + 0 * 32); - rte_mov32((uint8_t *)dst + 1 * 32, (const uint8_t *)src + 1 * 32); + rte_mov32(dst + 0 * 32, src + 0 * 32); + rte_mov32(dst + 1 * 32, src + 1 * 32); } /** @@ -117,10 +117,10 @@ rte_mov64(uint8_t *dst, const uint8_t *src) static inline void rte_mov128(uint8_t *dst, const uint8_t *src) { - rte_mov32((uint8_t *)dst + 0 * 32, (const uint8_t *)src + 0 * 32); - rte_mov32((uint8_t *)dst + 1 * 32, (const uint8_t *)src + 1 * 32); - rte_mov32((uint8_t *)dst + 2 * 32, (const uint8_t *)src + 2 * 32); - rte_mov32((uint8_t *)dst + 3 * 32, (const uint8_t *)src + 3 * 32); + rte_mov32(dst + 0 * 32, src + 0 * 32); + rte_mov32(dst + 1 * 32, src + 1 * 32); + rte_mov32(dst + 2 * 32, src + 2 * 32); + rte_mov32(dst + 3 * 32, src + 3 * 32); } /** @@ -130,14 +130,14 @@ rte_mov128(uint8_t *dst, const uint8_t *src) static inline void rte_mov256(uint8_t *dst, const uint8_t *src) { - rte_mov32((uint8_t *)dst + 0 * 32, (const uint8_t *)src + 0 * 32); - rte_mov32((uint8_t *)dst + 1 * 32, (const uint8_t *)src + 1 * 32); - rte_mov32((uint8_t *)dst + 2 * 32, (const uint8_t *)src + 2 * 32); - rte_mov32((uint8_t *)dst + 3 * 32, (const uint8_t *)src + 3 * 32); - rte_mov32((uint8_t *)dst + 4 * 32, (const uint8_t *)src + 4 * 32); - rte_mov32((uint8_t *)dst + 5 * 32, (const uint8_t *)src + 5 * 32); - rte_mov32((uint8_t *)dst + 6 * 32, (const uint8_t *)src + 6 * 32); - rte_mov32((uint8_t *)dst + 7 * 32, (const uint8_t *)src + 7 * 32); + rte_mov32(dst + 0 * 32, src + 0 * 32); + rte_mov32(dst + 1 * 32, src + 1 * 32); + rte_mov32(dst + 2 * 32, src + 2 * 32); + rte_mov32(dst + 3 * 32, src + 3 * 32); + rte_mov32(dst + 4 * 32, src + 4 * 32); + rte_mov32(dst + 5 * 32, src + 5 * 32); + rte_mov32(dst + 6 * 32, src + 6 * 32); + rte_mov32(dst + 7 * 32, src + 7 * 32); } /** @@ -150,13 +150,16 @@ rte_mov64blocks(uint8_t *dst, const uint8_t *src, size_t n) __m256i ymm0, ymm1; while (n >= 64) { - ymm0 = _mm256_loadu_si256((const __m256i *)((const uint8_t *)src + 0 * 32)); + + ymm0 = _mm256_loadu_si256((const __m256i *)(src + 0 * 32)); + ymm1 = _mm256_loadu_si256((const __m256i *)(src + 1 * 32)); + + _mm256_storeu_si256((__m256i *)(dst + 0 * 32), ymm0); + _mm256_storeu_si256((__m256i *)(dst + 1 * 32), ymm1); + n -= 64; - ymm1 = _mm256_loadu_si256((const __m256i *)((const uint8_t *)src + 1 * 32)); - src = (const uint8_t *)src + 64; - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 0 * 32), ymm0); - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 1 * 32), ymm1); - dst = (uint8_t *)dst + 64; + src = src + 64; + dst = dst + 64; } } @@ -170,34 +173,39 @@ rte_mov256blocks(uint8_t *dst, const uint8_t *src, size_t n) __m256i ymm0, ymm1, ymm2, ymm3, ymm4, ymm5, ymm6, ymm7; while (n >= 256) { - ymm0 = _mm256_loadu_si256((const __m256i *)((const uint8_t *)src + 0 * 32)); + + ymm0 = _mm256_loadu_si256((const __m256i *)(src + 0 * 32)); + ymm1 = _mm256_loadu_si256((const __m256i *)(src + 1 * 32)); + ymm2 = _mm256_loadu_si256((const __m256i *)(src + 2 * 32)); + ymm3 = _mm256_loadu_si256((const __m256i *)(src + 3 * 32)); + ymm4 = _mm256_loadu_si256((const __m256i *)(src + 4 * 32)); + ymm5 = _mm256_loadu_si256((const __m256i *)(src + 5 * 32)); + ymm6 = _mm256_loadu_si256((const __m256i *)(src + 6 * 32)); + ymm7 = _mm256_loadu_si256((const __m256i *)(src + 7 * 32)); + + _mm256_storeu_si256((__m256i *)(dst + 0 * 32), ymm0); + _mm256_storeu_si256((__m256i *)(dst + 1 * 32), ymm1); + _mm256_storeu_si256((__m256i *)(dst + 2 * 32), ymm2); + _mm256_storeu_si256((__m256i *)(dst + 3 * 32), ymm3); + _mm256_storeu_si256((__m256i *)(dst + 4 * 32), ymm4); + _mm256_storeu_si256((__m256i *)(dst + 5 * 32), ymm5); + _mm256_storeu_si256((__m256i *)(dst + 6 * 32), ymm6); + _mm256_storeu_si256((__m256i *)(dst + 7 * 32), ymm7); + n -= 256; - ymm1 = _mm256_loadu_si256((const __m256i *)((const uint8_t *)src + 1 * 32)); - ymm2 = _mm256_loadu_si256((const __m256i *)((const uint8_t *)src + 2 * 32)); - ymm3 = _mm256_loadu_si256((const __m256i *)((const uint8_t *)src + 3 * 32)); - ymm4 = _mm256_loadu_si256((const __m256i *)((const uint8_t *)src + 4 * 32)); - ymm5 = _mm256_loadu_si256((const __m256i *)((const uint8_t *)src + 5 * 32)); - ymm6 = _mm256_loadu_si256((const __m256i *)((const uint8_t *)src + 6 * 32)); - ymm7 = _mm256_loadu_si256((const __m256i *)((const uint8_t *)src + 7 * 32)); - src = (const uint8_t *)src + 256; - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 0 * 32), ymm0); - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 1 * 32), ymm1); - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 2 * 32), ymm2); - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 3 * 32), ymm3); - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 4 * 32), ymm4); - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 5 * 32), ymm5); - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 6 * 32), ymm6); - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 7 * 32), ymm7); - dst = (uint8_t *)dst + 256; + src = src + 256; + dst = dst + 256; } } static inline void * -rte_memcpy(void *dst, const void *src, size_t n) +rte_memcpy(void *_dst, const void *_src, size_t n) { - uintptr_t dstu = (uintptr_t)dst; - uintptr_t srcu = (uintptr_t)src; - void *ret = dst; + const uint8_t *src = (const uint8_t *)_src; + uint8_t *dst = (uint8_t *)_dst; + uintptr_t dstu = (uintptr_t)_dst; + uintptr_t srcu = (uintptr_t)_src; + void *ret = _dst; size_t dstofss; size_t bits; @@ -230,43 +238,43 @@ rte_memcpy(void *dst, const void *src, size_t n) * Fast way when copy size doesn't exceed 512 bytes */ if (n <= 32) { - rte_mov16((uint8_t *)dst, (const uint8_t *)src); - rte_mov16((uint8_t *)dst - 16 + n, (const uint8_t *)src - 16 + n); + rte_mov16(dst, src); + rte_mov16(dst - 16 + n, src - 16 + n); return ret; } if (n <= 64) { - rte_mov32((uint8_t *)dst, (const uint8_t *)src); - rte_mov32((uint8_t *)dst - 32 + n, (const uint8_t *)src - 32 + n); + rte_mov32(dst, src); + rte_mov32(dst - 32 + n, src - 32 + n); return ret; } if (n <= 512) { if (n >= 256) { n -= 256; - rte_mov256((uint8_t *)dst, (const uint8_t *)src); - src = (const uint8_t *)src + 256; - dst = (uint8_t *)dst + 256; + rte_mov256(dst, src); + src = src + 256; + dst = dst + 256; } if (n >= 128) { n -= 128; - rte_mov128((uint8_t *)dst, (const uint8_t *)src); - src = (const uint8_t *)src + 128; - dst = (uint8_t *)dst + 128; + rte_mov128(dst, src); + src = src + 128; + dst = dst + 128; } if (n >= 64) { n -= 64; - rte_mov64((uint8_t *)dst, (const uint8_t *)src); - src = (const uint8_t *)src + 64; - dst = (uint8_t *)dst + 64; + rte_mov64(dst, src); + src = src + 64; + dst = dst + 64; } COPY_BLOCK_64_BACK31: if (n > 32) { - rte_mov32((uint8_t *)dst, (const uint8_t *)src); - rte_mov32((uint8_t *)dst - 32 + n, (const uint8_t *)src - 32 + n); + rte_mov32(dst, src); + rte_mov32(dst - 32 + n, src - 32 + n); return ret; } - if (n > 0) { - rte_mov32((uint8_t *)dst - 32 + n, (const uint8_t *)src - 32 + n); - } + if (n > 0) + rte_mov32(dst - 32 + n, src - 32 + n); + return ret; } @@ -275,21 +283,21 @@ COPY_BLOCK_64_BACK31: */ dstofss = 32 - ((uintptr_t)dst & 0x1F); n -= dstofss; - rte_mov32((uint8_t *)dst, (const uint8_t *)src); - src = (const uint8_t *)src + dstofss; - dst = (uint8_t *)dst + dstofss; + rte_mov32(dst, src); + src = src + dstofss; + dst = dst + dstofss; /** * Copy 256-byte blocks. * Use copy block function for better instruction order control, * which is important when load is unaligned. */ - rte_mov256blocks((uint8_t *)dst, (const uint8_t *)src, n); + rte_mov256blocks(dst, src, n); bits = n; n = n & 255; bits -= n; - src = (const uint8_t *)src + bits; - dst = (uint8_t *)dst + bits; + src = src + bits; + dst = dst + bits; /** * Copy 64-byte blocks. @@ -297,12 +305,12 @@ COPY_BLOCK_64_BACK31: * which is important when load is unaligned. */ if (n >= 64) { - rte_mov64blocks((uint8_t *)dst, (const uint8_t *)src, n); + rte_mov64blocks(dst, src, n); bits = n; n = n & 63; bits -= n; - src = (const uint8_t *)src + bits; - dst = (uint8_t *)dst + bits; + src = src + bits; + dst = dst + bits; } /** @@ -337,8 +345,8 @@ rte_mov16(uint8_t *dst, const uint8_t *src) static inline void rte_mov32(uint8_t *dst, const uint8_t *src) { - rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16); - rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16); + rte_mov16(dst + 0 * 16, src + 0 * 16); + rte_mov16(dst + 1 * 16, src + 1 * 16); } /** @@ -348,10 +356,10 @@ rte_mov32(uint8_t *dst, const uint8_t *src) static inline void rte_mov64(uint8_t *dst, const uint8_t *src) { - rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16); - rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16); - rte_mov16((uint8_t *)dst + 2 * 16, (const uint8_t *)src + 2 * 16); - rte_mov16((uint8_t *)dst + 3 * 16, (const uint8_t *)src + 3 * 16); + rte_mov16(dst + 0 * 16, src + 0 * 16); + rte_mov16(dst + 1 * 16, src + 1 * 16); + rte_mov16(dst + 2 * 16, src + 2 * 16); + rte_mov16(dst + 3 * 16, src + 3 * 16); } /** @@ -361,14 +369,14 @@ rte_mov64(uint8_t *dst, const uint8_t *src) static inline void rte_mov128(uint8_t *dst, const uint8_t *src) { - rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16); - rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16); - rte_mov16((uint8_t *)dst + 2 * 16, (const uint8_t *)src + 2 * 16); - rte_mov16((uint8_t *)dst + 3 * 16, (const uint8_t *)src + 3 * 16); - rte_mov16((uint8_t *)dst + 4 * 16, (const uint8_t *)src + 4 * 16); - rte_mov16((uint8_t *)dst + 5 * 16, (const uint8_t *)src + 5 * 16); - rte_mov16((uint8_t *)dst + 6 * 16, (const uint8_t *)src + 6 * 16); - rte_mov16((uint8_t *)dst + 7 * 16, (const uint8_t *)src + 7 * 16); + rte_mov16(dst + 0 * 16, src + 0 * 16); + rte_mov16(dst + 1 * 16, src + 1 * 16); + rte_mov16(dst + 2 * 16, src + 2 * 16); + rte_mov16(dst + 3 * 16, src + 3 * 16); + rte_mov16(dst + 4 * 16, src + 4 * 16); + rte_mov16(dst + 5 * 16, src + 5 * 16); + rte_mov16(dst + 6 * 16, src + 6 * 16); + rte_mov16(dst + 7 * 16, src + 7 * 16); } /** @@ -378,22 +386,22 @@ rte_mov128(uint8_t *dst, const uint8_t *src) static inline void rte_mov256(uint8_t *dst, const uint8_t *src) { - rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16); - rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16); - rte_mov16((uint8_t *)dst + 2 * 16, (const uint8_t *)src + 2 * 16); - rte_mov16((uint8_t *)dst + 3 * 16, (const uint8_t *)src + 3 * 16); - rte_mov16((uint8_t *)dst + 4 * 16, (const uint8_t *)src + 4 * 16); - rte_mov16((uint8_t *)dst + 5 * 16, (const uint8_t *)src + 5 * 16); - rte_mov16((uint8_t *)dst + 6 * 16, (const uint8_t *)src + 6 * 16); - rte_mov16((uint8_t *)dst + 7 * 16, (const uint8_t *)src + 7 * 16); - rte_mov16((uint8_t *)dst + 8 * 16, (const uint8_t *)src + 8 * 16); - rte_mov16((uint8_t *)dst + 9 * 16, (const uint8_t *)src + 9 * 16); - rte_mov16((uint8_t *)dst + 10 * 16, (const uint8_t *)src + 10 * 16); - rte_mov16((uint8_t *)dst + 11 * 16, (const uint8_t *)src + 11 * 16); - rte_mov16((uint8_t *)dst + 12 * 16, (const uint8_t *)src + 12 * 16); - rte_mov16((uint8_t *)dst + 13 * 16, (const uint8_t *)src + 13 * 16); - rte_mov16((uint8_t *)dst + 14 * 16, (const uint8_t *)src + 14 * 16); - rte_mov16((uint8_t *)dst + 15 * 16, (const uint8_t *)src + 15 * 16); + rte_mov16(dst + 0 * 16, src + 0 * 16); + rte_mov16(dst + 1 * 16, src + 1 * 16); + rte_mov16(dst + 2 * 16, src + 2 * 16); + rte_mov16(dst + 3 * 16, src + 3 * 16); + rte_mov16(dst + 4 * 16, src + 4 * 16); + rte_mov16(dst + 5 * 16, src + 5 * 16); + rte_mov16(dst + 6 * 16, src + 6 * 16); + rte_mov16(dst + 7 * 16, src + 7 * 16); + rte_mov16(dst + 8 * 16, src + 8 * 16); + rte_mov16(dst + 9 * 16, src + 9 * 16); + rte_mov16(dst + 10 * 16, src + 10 * 16); + rte_mov16(dst + 11 * 16, src + 11 * 16); + rte_mov16(dst + 12 * 16, src + 12 * 16); + rte_mov16(dst + 13 * 16, src + 13 * 16); + rte_mov16(dst + 14 * 16, src + 14 * 16); + rte_mov16(dst + 15 * 16, src + 15 * 16); } /** @@ -411,48 +419,48 @@ rte_mov256(uint8_t *dst, const uint8_t *src) ({ \ int tmp; \ while (len >= 128 + 16 - offset) { \ - xmm0 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 0 * 16)); \ - len -= 128; \ - xmm1 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 1 * 16)); \ - xmm2 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 2 * 16)); \ - xmm3 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 3 * 16)); \ - xmm4 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 4 * 16)); \ - xmm5 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 5 * 16)); \ - xmm6 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 6 * 16)); \ - xmm7 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 7 * 16)); \ - xmm8 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 8 * 16)); \ + xmm0 = _mm_loadu_si128((const __m128i *)(src - offset + 0 * 16)); \ + len -= 128; \ + xmm1 = _mm_loadu_si128((const __m128i *)(src - offset + 1 * 16)); \ + xmm2 = _mm_loadu_si128((const __m128i *)(src - offset + 2 * 16)); \ + xmm3 = _mm_loadu_si128((const __m128i *)(src - offset + 3 * 16)); \ + xmm4 = _mm_loadu_si128((const __m128i *)(src - offset + 4 * 16)); \ + xmm5 = _mm_loadu_si128((const __m128i *)(src - offset + 5 * 16)); \ + xmm6 = _mm_loadu_si128((const __m128i *)(src - offset + 6 * 16)); \ + xmm7 = _mm_loadu_si128((const __m128i *)(src - offset + 7 * 16)); \ + xmm8 = _mm_loadu_si128((const __m128i *)(src - offset + 8 * 16)); \ src = (const uint8_t *)src + 128; \ - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 0 * 16), _mm_alignr_epi8(xmm1, xmm0, offset)); \ - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 1 * 16), _mm_alignr_epi8(xmm2, xmm1, offset)); \ - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 2 * 16), _mm_alignr_epi8(xmm3, xmm2, offset)); \ - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 3 * 16), _mm_alignr_epi8(xmm4, xmm3, offset)); \ - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 4 * 16), _mm_alignr_epi8(xmm5, xmm4, offset)); \ - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 5 * 16), _mm_alignr_epi8(xmm6, xmm5, offset)); \ - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 6 * 16), _mm_alignr_epi8(xmm7, xmm6, offset)); \ - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 7 * 16), _mm_alignr_epi8(xmm8, xmm7, offset)); \ + _mm_storeu_si128((__m128i *)(dst + 0 * 16), _mm_alignr_epi8(xmm1, xmm0, offset)); \ + _mm_storeu_si128((__m128i *)(dst + 1 * 16), _mm_alignr_epi8(xmm2, xmm1, offset)); \ + _mm_storeu_si128((__m128i *)(dst + 2 * 16), _mm_alignr_epi8(xmm3, xmm2, offset)); \ + _mm_storeu_si128((__m128i *)(dst + 3 * 16), _mm_alignr_epi8(xmm4, xmm3, offset)); \ + _mm_storeu_si128((__m128i *)(dst + 4 * 16), _mm_alignr_epi8(xmm5, xmm4, offset)); \ + _mm_storeu_si128((__m128i *)(dst + 5 * 16), _mm_alignr_epi8(xmm6, xmm5, offset)); \ + _mm_storeu_si128((__m128i *)(dst + 6 * 16), _mm_alignr_epi8(xmm7, xmm6, offset)); \ + _mm_storeu_si128((__m128i *)(dst + 7 * 16), _mm_alignr_epi8(xmm8, xmm7, offset)); \ dst = (uint8_t *)dst + 128; \ } \ tmp = len; \ len = ((len - 16 + offset) & 127) + 16 - offset; \ tmp -= len; \ - src = (const uint8_t *)src + tmp; \ - dst = (uint8_t *)dst + tmp; \ + src = src + tmp; \ + dst = dst + tmp; \ if (len >= 32 + 16 - offset) { \ while (len >= 32 + 16 - offset) { \ - xmm0 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 0 * 16)); \ len -= 32; \ - xmm1 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 1 * 16)); \ - xmm2 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src - offset + 2 * 16)); \ - src = (const uint8_t *)src + 32; \ - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 0 * 16), _mm_alignr_epi8(xmm1, xmm0, offset)); \ - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 1 * 16), _mm_alignr_epi8(xmm2, xmm1, offset)); \ - dst = (uint8_t *)dst + 32; \ + xmm0 = _mm_loadu_si128((const __m128i *)(src - offset + 0 * 16)); \ + xmm1 = _mm_loadu_si128((const __m128i *)(src - offset + 1 * 16)); \ + xmm2 = _mm_loadu_si128((const __m128i *)(src - offset + 2 * 16)); \ + src = src + 32; \ + _mm_storeu_si128((__m128i *)(dst + 0 * 16), _mm_alignr_epi8(xmm1, xmm0, offset)); \ + _mm_storeu_si128((__m128i *)(dst + 1 * 16), _mm_alignr_epi8(xmm2, xmm1, offset)); \ + dst = dst + 32; \ } \ tmp = len; \ len = ((len - 16 + offset) & 31) + 16 - offset; \ tmp -= len; \ - src = (const uint8_t *)src + tmp; \ - dst = (uint8_t *)dst + tmp; \ + src = src + tmp; \ + dst = dst + tmp; \ } \ }) @@ -491,12 +499,14 @@ rte_mov256(uint8_t *dst, const uint8_t *src) }) static inline void * -rte_memcpy(void *dst, const void *src, size_t n) +rte_memcpy(void *_dst, const void *_src, size_t n) { __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8; - uintptr_t dstu = (uintptr_t)dst; - uintptr_t srcu = (uintptr_t)src; - void *ret = dst; + const uint8_t *src = (const uint8_t *)_src; + uint8_t *dst = (uint8_t *)_dst; + uintptr_t dstu = (uintptr_t)_dst; + uintptr_t srcu = (uintptr_t)_src; + void *ret = _dst; size_t dstofss; size_t srcofs; @@ -529,61 +539,61 @@ rte_memcpy(void *dst, const void *src, size_t n) * Fast way when copy size doesn't exceed 512 bytes */ if (n <= 32) { - rte_mov16((uint8_t *)dst, (const uint8_t *)src); - rte_mov16((uint8_t *)dst - 16 + n, (const uint8_t *)src - 16 + n); + rte_mov16(dst, src); + rte_mov16(dst - 16 + n, src - 16 + n); return ret; } if (n <= 48) { - rte_mov32((uint8_t *)dst, (const uint8_t *)src); - rte_mov16((uint8_t *)dst - 16 + n, (const uint8_t *)src - 16 + n); + rte_mov32(dst, src); + rte_mov16(dst - 16 + n, src - 16 + n); return ret; } if (n <= 64) { - rte_mov32((uint8_t *)dst, (const uint8_t *)src); - rte_mov16((uint8_t *)dst + 32, (const uint8_t *)src + 32); - rte_mov16((uint8_t *)dst - 16 + n, (const uint8_t *)src - 16 + n); + rte_mov32(dst, src); + rte_mov16(dst + 32, src + 32); + rte_mov16(dst - 16 + n, src - 16 + n); return ret; } - if (n <= 128) { + if (n <= 128) goto COPY_BLOCK_128_BACK15; - } + if (n <= 512) { if (n >= 256) { n -= 256; - rte_mov128((uint8_t *)dst, (const uint8_t *)src); - rte_mov128((uint8_t *)dst + 128, (const uint8_t *)src + 128); - src = (const uint8_t *)src + 256; - dst = (uint8_t *)dst + 256; + rte_mov128(dst, src); + rte_mov128(dst + 128, src + 128); + src = src + 256; + dst = dst + 256; } COPY_BLOCK_255_BACK15: if (n >= 128) { n -= 128; - rte_mov128((uint8_t *)dst, (const uint8_t *)src); - src = (const uint8_t *)src + 128; - dst = (uint8_t *)dst + 128; + rte_mov128(dst, src); + src = src + 128; + dst = dst + 128; } COPY_BLOCK_128_BACK15: if (n >= 64) { n -= 64; - rte_mov64((uint8_t *)dst, (const uint8_t *)src); - src = (const uint8_t *)src + 64; - dst = (uint8_t *)dst + 64; + rte_mov64(dst, src); + src = src + 64; + dst = dst + 64; } COPY_BLOCK_64_BACK15: if (n >= 32) { n -= 32; - rte_mov32((uint8_t *)dst, (const uint8_t *)src); - src = (const uint8_t *)src + 32; - dst = (uint8_t *)dst + 32; + rte_mov32(dst, src); + src = src + 32; + dst = dst + 32; } if (n > 16) { - rte_mov16((uint8_t *)dst, (const uint8_t *)src); - rte_mov16((uint8_t *)dst - 16 + n, (const uint8_t *)src - 16 + n); + rte_mov16(dst, src); + rte_mov16(dst - 16 + n, src - 16 + n); return ret; } - if (n > 0) { - rte_mov16((uint8_t *)dst - 16 + n, (const uint8_t *)src - 16 + n); - } + if (n > 0) + rte_mov16(dst - 16 + n, src - 16 + n); + return ret; } @@ -595,9 +605,9 @@ COPY_BLOCK_64_BACK15: */ dstofss = 16 - ((uintptr_t)dst & 0x0F) + 16; n -= dstofss; - rte_mov32((uint8_t *)dst, (const uint8_t *)src); - src = (const uint8_t *)src + dstofss; - dst = (uint8_t *)dst + dstofss; + rte_mov32(dst, src); + src = src + dstofss; + dst = dst + dstofss; srcofs = ((uintptr_t)src & 0x0F); /** @@ -608,9 +618,9 @@ COPY_BLOCK_64_BACK15: * Copy 256-byte blocks */ for (; n >= 256; n -= 256) { - rte_mov256((uint8_t *)dst, (const uint8_t *)src); - dst = (uint8_t *)dst + 256; - src = (const uint8_t *)src + 256; + rte_mov256(dst, src); + dst = dst + 256; + src = src + 256; } /** -- 1.9.1