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Both src and dst should be alignment checked separately

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The following pattern passes the current check:

src  - 1010
dst  - 0101
mask - 1111
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Arun Prakash Jana 2018-03-03 01:08:15 +05:30
parent 815d8fb21c
commit 10e84a28ed
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GPG key ID: A75979F35C080412
1 changed files with 1 additions and 1 deletions
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nnn.c
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@ -488,7 +488,7 @@ xstrlcpy(char *dest, const char *src, size_t n)
* To enable -O3 ensure src and dest are 16-byte aligned
* More info: http://www.felixcloutier.com/x86/MOVDQA.html
*/
if ((n >= lsize) && !((ulong)src & (ulong)dest & _ALIGNMENT_MASK)) {
if ((n >= lsize) && (((ulong)src & _ALIGNMENT_MASK) == 0 && ((ulong)dest & _ALIGNMENT_MASK) == 0)) {
s = (ulong *)src;
d = (ulong *)dest;
blocks = n >> _WSHIFT;