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[NFC][DFSan] Cleanup code to use align functions. 

Reviewed By: morehouse

Differential Revision: https://reviews.llvm.org/D116761
This commit is contained in:
Andrew Browne 2022-01-06 10:56:34 -08:00
parent 9cd7e880fd
commit 7607ddd981
1 changed files with 3 additions and 3 deletions
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6
compiler-rt/lib/dfsan/dfsan.cpp
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@ -332,9 +332,9 @@ static void MoveOrigin(const void *dst, const void *src, uptr size,
// origins by copying origins in a reverse order; otherwise, copy origins in
// a normal order. The orders of origin transfer are consistent with the
// orders of how memcpy and memmove transfer user data.
uptr src_aligned_beg = reinterpret_cast<uptr>(src) & ~3UL;
uptr src_aligned_end = (reinterpret_cast<uptr>(src) + size) & ~3UL;
uptr dst_aligned_beg = reinterpret_cast<uptr>(dst) & ~3UL;
uptr src_aligned_beg = OriginAlignDown((uptr)src);
uptr src_aligned_end = OriginAlignDown((uptr)src + size);
uptr dst_aligned_beg = OriginAlignDown((uptr)dst);
if (dst_aligned_beg < src_aligned_end && dst_aligned_beg >= src_aligned_beg)
return ReverseCopyOrigin(dst, src, size, stack);
return CopyOrigin(dst, src, size, stack);