Add LLVM support for Swift.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164899 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index f8455a4..8ff4821 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -635,9 +635,9 @@
   if (!Subtarget->hasV6Ops())
     setOperationAction(ISD::BSWAP, MVT::i32, Expand);
 
-  // These are expanded into libcalls.
-  if (!Subtarget->hasDivide() || !Subtarget->isThumb2()) {
-    // v7M has a hardware divider
+  if (!(Subtarget->hasDivide() && Subtarget->isThumb2()) &&
+      !(Subtarget->hasDivideInARMMode() && !Subtarget->isThumb())) {
+    // These are expanded into libcalls if the cpu doesn't have HW divider.
     setOperationAction(ISD::SDIV,  MVT::i32, Expand);
     setOperationAction(ISD::UDIV,  MVT::i32, Expand);
   }