diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 269f22150a..2375182167 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -3469,9 +3469,6 @@ static bool FindOptimalMemOpLowering(std::vector<EVT> &MemOps, unsigned NumMemOps = 0; while (Size != 0) { - if (++NumMemOps > Limit) - return false; - unsigned VTSize = VT.getSizeInBits() / 8; while (VTSize > Size) { // For now, only use non-vector load / store's for the left-over pieces. @@ -3507,7 +3504,8 @@ static bool FindOptimalMemOpLowering(std::vector<EVT> &MemOps, // FIXME: Only does this for 64-bit or more since we don't have proper // cost model for unaligned load / store. bool Fast; - if (AllowOverlap && VTSize >= 8 && NewVTSize < Size && + if (NumMemOps && AllowOverlap && + VTSize >= 8 && NewVTSize < Size && TLI.allowsUnalignedMemoryAccesses(VT, &Fast) && Fast) VTSize = Size; else { @@ -3516,6 +3514,9 @@ static bool FindOptimalMemOpLowering(std::vector<EVT> &MemOps, } } + if (++NumMemOps > Limit) + return false; + MemOps.push_back(VT); Size -= VTSize; } |