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r954: fixed two potential undef behaviors (#443)

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Heng Li
2019-07-18 09:17:08 -04:00
parent 7fc03b0c32
commit d90583b83c
2 changed files with 3 additions and 3 deletions
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chain.c
+2 -2
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@@ -155,8 +155,8 @@ mm128_t *mm_chain_dp(int max_dist_x, int max_dist_y, int bw, int max_skip, int m
memcpy(&a[k], &b[w[i].y>>32], n * sizeof(mm128_t));
k += n;
}
memcpy(u, u2, n_u * 8);
memcpy(b, a, k * sizeof(mm128_t)); // write _a_ to _b_ and deallocate _a_ because _a_ is oversized, sometimes a lot
if (n_u) memcpy(u, u2, n_u * 8);
if (k) memcpy(b, a, k * sizeof(mm128_t)); // write _a_ to _b_ and deallocate _a_ because _a_ is oversized, sometimes a lot
kfree(km, a); kfree(km, w); kfree(km, u2);
return b;
}