Sink the CopyToExportRegsIfNeeded calls out of SelectionDAGISel
into SelectionDAGBuilder. This avoids a separate pass over the
instructions, and has the side effect of providing debug location
information to the copy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101906 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 054174f..ce5a65b 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -618,6 +618,9 @@
 
   visit(I.getOpcode(), I);
 
+  if (!isa<TerminatorInst>(&I) && !HasTailCall)
+    CopyToExportRegsIfNeeded(&I);
+
   CurDebugLoc = DebugLoc();
 }