From: Douglas Gregor <dgregor@apple.com>
Date: Tue, 31 Aug 2010 05:10:27 +0000 (+0000)
Subject: Teach the CFGBuilder not do die on CXXBindTemporaryExpr, CXXOperatorCallExpr. Fixes... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=35fe7eeb1284ed786ed647b34fa01fc18646b3c7;p=clang

Teach the CFGBuilder not do die on CXXBindTemporaryExpr, CXXOperatorCallExpr. Fixes a Boost.Graph crasher.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112578 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Analysis/CFG.cpp b/lib/Analysis/CFG.cpp
index 78979a4fee..ea30ec01f6 100644
--- a/lib/Analysis/CFG.cpp
+++ b/lib/Analysis/CFG.cpp
@@ -370,6 +370,7 @@ tryAgain:
       return VisitBreakStmt(cast<BreakStmt>(S));
 
     case Stmt::CallExprClass:
+    case Stmt::CXXOperatorCallExprClass: // FIXME: handle specially?
       return VisitCallExpr(cast<CallExpr>(S), asc);
 
     case Stmt::CaseStmtClass:
@@ -396,6 +397,12 @@ tryAgain:
       return Visit(cast<CXXExprWithTemporaries>(S)->getSubExpr());    
     }
 
+    case Stmt::CXXBindTemporaryExprClass: {
+      // FIXME: Handle temporary binding.  For now, just visit the subexpression
+      // so we don't artificially create extra blocks.
+      return Visit(cast<CXXBindTemporaryExpr>(S)->getSubExpr());    
+    }
+
     case Stmt::CXXMemberCallExprClass:
       return VisitCXXMemberCallExpr(cast<CXXMemberCallExpr>(S), asc);
 
diff --git a/test/Analysis/temporaries.cpp b/test/Analysis/temporaries.cpp
new file mode 100644
index 0000000000..602948af5c
--- /dev/null
+++ b/test/Analysis/temporaries.cpp
@@ -0,0 +1,13 @@
+// // RUN: %clang_cc1 -analyze -analyzer-check-objc-mem -analyzer-inline-call -analyzer-store region -verify %s
+ 
+// FIXME: Super-simple test to make sure we don't die on temporaries.
+
+struct X {
+  X();
+  ~X();
+  X operator++(int);
+};
+
+int f(X x, X y) {
+  for (; ; x++) { }
+}