fix PR6475, we were doing side-effecting stuff in an assert.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97669 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGStmt.cpp b/lib/CodeGen/CGStmt.cpp
index 008a480..a889e55 100644
--- a/lib/CodeGen/CGStmt.cpp
+++ b/lib/CodeGen/CGStmt.cpp
@@ -915,18 +915,17 @@
   for (unsigned i = 0, e = S.getNumOutputs(); i != e; i++) {
     TargetInfo::ConstraintInfo Info(S.getOutputConstraint(i),
                                     S.getOutputName(i));
-    assert(Target.validateOutputConstraint(Info) && 
-           "Failed to parse output constraint");
+    bool IsValid = Target.validateOutputConstraint(Info); (void)IsValid;
+    assert(IsValid && "Failed to parse output constraint"); 
     OutputConstraintInfos.push_back(Info);
   }
 
   for (unsigned i = 0, e = S.getNumInputs(); i != e; i++) {
     TargetInfo::ConstraintInfo Info(S.getInputConstraint(i),
                                     S.getInputName(i));
-    assert(Target.validateInputConstraint(OutputConstraintInfos.data(),
-                                          S.getNumOutputs(),
-                                          Info) &&
-           "Failed to parse input constraint");
+    bool IsValid = Target.validateInputConstraint(OutputConstraintInfos.data(),
+                                                  S.getNumOutputs(), Info);
+    assert(IsValid && "Failed to parse input constraint"); (void)IsValid;
     InputConstraintInfos.push_back(Info);
   }