Add alignment value to allowsUnalignedMemoryAccess
Rename to allowsMisalignedMemoryAccess.
On R600, 8 and 16 byte accesses are mostly OK with 4-byte alignment,
and don't need to be split into multiple accesses. Vector loads with
an alignment of the element type are not uncommon in OpenCL code.
llvm-svn: 214055
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 4ccdb1d..e3d74da 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -5725,9 +5725,10 @@
unsigned SrcAS = RHS->getType()->getPointerAddressSpace();
// TODO: Handle 5 byte compare as 4-byte + 1 byte.
// TODO: Handle 8 byte compare on x86-32 as two 32-bit loads.
+ // TODO: Check alignment of src and dest ptrs.
if (!TLI->isTypeLegal(LoadVT) ||
- !TLI->allowsUnalignedMemoryAccesses(LoadVT, SrcAS) ||
- !TLI->allowsUnalignedMemoryAccesses(LoadVT, DstAS))
+ !TLI->allowsMisalignedMemoryAccesses(LoadVT, SrcAS) ||
+ !TLI->allowsMisalignedMemoryAccesses(LoadVT, DstAS))
ActuallyDoIt = false;
}