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author | Daniel Dunbar <daniel@zuster.org> | 2009-08-28 05:48:04 +0000 |
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committer | Daniel Dunbar <daniel@zuster.org> | 2009-08-28 05:48:04 +0000 |
commit | eccf22528f8b4c21cdbd2f620cbe39dbb38ea6e1 (patch) | |
tree | 8d78e94829aa443ddc928b970a248a5157b3566b /include | |
parent | ca7943226e1d58f4f3ae936f93aa03c2a72289ae (diff) | |
download | external_llvm-eccf22528f8b4c21cdbd2f620cbe39dbb38ea6e1.zip external_llvm-eccf22528f8b4c21cdbd2f620cbe39dbb38ea6e1.tar.gz external_llvm-eccf22528f8b4c21cdbd2f620cbe39dbb38ea6e1.tar.bz2 |
Add MathExtras.h OffsetToAlignment, like RoundUpToAlignment but returns the
offset to the next aligned integer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80339 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
-rw-r--r-- | include/llvm/Support/MathExtras.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/llvm/Support/MathExtras.h b/include/llvm/Support/MathExtras.h index 7ba5d86..6fa618e 100644 --- a/include/llvm/Support/MathExtras.h +++ b/include/llvm/Support/MathExtras.h @@ -435,6 +435,13 @@ inline uint64_t RoundUpToAlignment(uint64_t Value, uint64_t Align) { return ((Value + Align - 1) / Align) * Align; } +/// OffsetToAlignment - Return the offset to the next integer (mod 2**64) that +/// is greater than or equal to \arg Value and is a multiple of \arg +/// Align. Align must be non-zero. +inline uint64_t OffsetToAlignment(uint64_t Value, uint64_t Align) { + return RoundUpToAlignment(Value, Align) - Value; +} + /// abs64 - absolute value of a 64-bit int. Not all environments support /// "abs" on whatever their name for the 64-bit int type is. The absolute /// value of the largest negative number is undefined, as with "abs". |