Mask result of uAxB_is_equal_mask when buffer is masked. Otherwise it
return vector length B as a result for zeroed words.
This bug caused crashes in error_drop in tests on Ice Lake.
Type: fix
Fixes:
7459be1b3626b608e60df574343a1432a068ebce
Change-Id: I56183e77f8a8ab6c530e79b465067958de84dceb
Signed-off-by: Dmitry Valter <d-valter@yandex-team.ru>
{
u32 mask = pow2_mask (max_count - count);
u32 bmp =
{
u32 mask = pow2_mask (max_count - count);
u32 bmp =
- u32x16_is_equal_mask (u32x16_mask_load_zero (data, mask), splat);
+ u32x16_is_equal_mask (u32x16_mask_load_zero (data, mask), splat) &
+ mask;
return count + count_trailing_zeros (~bmp);
}
#elif defined(CLIB_HAVE_VEC256)
return count + count_trailing_zeros (~bmp);
}
#elif defined(CLIB_HAVE_VEC256)
}
if (count == max_count)
return count;
}
if (count == max_count)
return count;
-#if defined(CxLIB_HAVE_VEC256_MASK_LOAD_STORE)
+#if defined(CLIB_HAVE_VEC256_MASK_LOAD_STORE)
else
{
u32 mask = pow2_mask (max_count - count);
else
{
u32 mask = pow2_mask (max_count - count);
- u32 bmp = u32x8_is_equal_mask (u32x8_mask_load_zero (data, mask), splat);
+ u32 bmp =
+ u32x8_is_equal_mask (u32x8_mask_load_zero (data, mask), splat) & mask;
return count + count_trailing_zeros (~bmp);
}
#endif
return count + count_trailing_zeros (~bmp);
}
#endif
else
{
u64 mask = pow2_mask (max_count - count);
else
{
u64 mask = pow2_mask (max_count - count);
- u64 bmp = u8x64_is_equal_mask (u8x64_mask_load_zero (data, mask), splat);
+ u64 bmp =
+ u8x64_is_equal_mask (u8x64_mask_load_zero (data, mask), splat) & mask;
return count + count_trailing_zeros (~bmp);
}
#endif
return count + count_trailing_zeros (~bmp);
}
#endif
else
{
u32 mask = pow2_mask (max_count - count);
else
{
u32 mask = pow2_mask (max_count - count);
- u64 bmp = u8x32_msb_mask (u8x32_mask_load_zero (data, mask) == splat);
+ u64 bmp =
+ u8x32_msb_mask (u8x32_mask_load_zero (data, mask) == splat) & mask;
return count + count_trailing_zeros (~bmp);
}
#endif
return count + count_trailing_zeros (~bmp);
}
#endif
\
mprotect (data, 1ULL < ps, PROT_NONE); \
\
\
mprotect (data, 1ULL < ps, PROT_NONE); \
\
- for (int i = 1; i <= (1 << ps) / sizeof (data[0]); i++) \
- data[-i] = 7; \
- \
- for (int i = 0; i < ARRAY_LEN (lengths); i++) \
+ for (u8 d = 0; d < 255; d++) \
- uword rv, len = lengths[i]; \
- \
- if ((rv = wfn_##type (data - len, len)) != len) \
+ for (int i = 1; i <= (1 << ps) / sizeof (data[0]); i++) \
+ data[-i] = d; \
+ for (int i = 0; i < ARRAY_LEN (lengths); i++) \
- err = clib_error_return ( \
- err, "testcase 1 failed for len %u (rv %u)", len, rv); \
- goto done; \
- } \
+ uword rv, len = lengths[i]; \
- data[-1] = 8; \
- if (len > 1 && ((rv = wfn_##type (data - len, len)) != len - 1)) \
- { \
- err = clib_error_return ( \
- err, "testcase 2 failed for len %u (rv %u)", len, rv); \
- goto done; \
- } \
- data[-1] = 7; \
+ if ((rv = wfn_##type (data - len, len)) != len) \
+ { \
+ err = clib_error_return ( \
+ err, "testcase 1 failed for len %u data %u(rv %u)", len, d, \
+ rv); \
+ goto done; \
+ } \
- data[-2] = 8; \
- if (len > 2 && ((rv = wfn_##type (data - len, len)) != len - 2)) \
- { \
- err = clib_error_return ( \
- err, "testcase 3 failed for len %u (rv %u)", len, rv); \
- goto done; \
+ data[-1] = d + 1; \
+ if (len > 1 && ((rv = wfn_##type (data - len, len)) != len - 1)) \
+ { \
+ err = clib_error_return ( \
+ err, "testcase 2 failed for len %u data %u (rv %u)", len, \
+ d, rv); \
+ goto done; \
+ } \
+ data[-1] = d; \
+ \
+ data[-2] = d + 1; \
+ if (len > 2 && ((rv = wfn_##type (data - len, len)) != len - 2)) \
+ { \
+ err = clib_error_return ( \
+ err, "testcase 3 failed for len %u data %u (rv %u)", len, \
+ d, rv); \
+ goto done; \
+ } \
+ data[-2] = d; \