add some helper methods to AsmStmt and add some comments.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66521 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGStmt.cpp b/lib/CodeGen/CGStmt.cpp
index 69ed080..3fd6526 100644
--- a/lib/CodeGen/CGStmt.cpp
+++ b/lib/CodeGen/CGStmt.cpp
@@ -919,8 +919,7 @@
   llvm::SmallVector<TargetInfo::ConstraintInfo, 4> OutputConstraintInfos;
 
   for (unsigned i = 0, e = S.getNumOutputs(); i != e; i++) {    
-    std::string OutputConstraint(S.getOutputConstraint(i)->getStrData(),
-                                 S.getOutputConstraint(i)->getByteLength());
+    std::string OutputConstraint(S.getOutputConstraint(i));
     
     TargetInfo::ConstraintInfo Info;
     bool result = Target.validateOutputConstraint(OutputConstraint.c_str(), 
@@ -973,8 +972,7 @@
   for (unsigned i = 0, e = S.getNumInputs(); i != e; i++) {
     const Expr *InputExpr = S.getInputExpr(i);
 
-    std::string InputConstraint(S.getInputConstraint(i)->getStrData(),
-                                S.getInputConstraint(i)->getByteLength());
+    std::string InputConstraint(S.getInputConstraint(i));
     
     TargetInfo::ConstraintInfo Info;
     bool result = Target.validateInputConstraint(InputConstraint.c_str(),