Implement codegen for __builtin_choose_expr.  For example:

struct X { int A; };

void foo() {
  struct X s;
  int i;
  i = __builtin_choose_expr(0, s, i);
}

compiles to:

        %tmp = load i32* %i             ; <i32> [#uses=1]
        store i32 %tmp, i32* %i

wow :)



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40801 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/AST/StmtPrinter.cpp b/AST/StmtPrinter.cpp
index bdbbc12..41aa646 100644
--- a/AST/StmtPrinter.cpp
+++ b/AST/StmtPrinter.cpp
@@ -490,9 +490,9 @@
 void StmtPrinter::VisitChooseExpr(ChooseExpr *Node) {
   OS << "__builtin_choose_expr(";
   PrintExpr(Node->getCond());
-  OS << ",";
+  OS << ", ";
   PrintExpr(Node->getLHS());
-  OS << ",";
+  OS << ", ";
   PrintExpr(Node->getRHS());
   OS << ")";
 }