[cfe-commits] r104545 - in /cfe/trunk: lib/AST/ASTContext.cpp test/SemaTemplate/enum-argument.cpp

[Douglas Gregor]

Author: dgregor
Date: Mon May 24 15:13:53 2010
New Revision: 104545

URL: http://llvm.org/viewvc/llvm-project?rev=104545&view=rev
Log:
A type- or value-dependent expression cannot use bitfield
promotion. Fixes <rdar://problem/8020920>.

Modified:
    cfe/trunk/lib/AST/ASTContext.cpp
    cfe/trunk/test/SemaTemplate/enum-argument.cpp

Modified: cfe/trunk/lib/AST/ASTContext.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ASTContext.cpp?rev=104545&r1=104544&r2=104545&view=diff
==============================================================================
--- cfe/trunk/lib/AST/ASTContext.cpp (original)
+++ cfe/trunk/lib/AST/ASTContext.cpp Mon May 24 15:13:53 2010
@@ -2729,6 +2729,9 @@
 /// \returns the type this bit-field will promote to, or NULL if no
 /// promotion occurs.
 QualType ASTContext::isPromotableBitField(Expr *E) {
+  if (E->isTypeDependent() || E->isValueDependent())
+    return QualType();
+  
   FieldDecl *Field = E->getBitField();
   if (!Field)
     return QualType();

Modified: cfe/trunk/test/SemaTemplate/enum-argument.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaTemplate/enum-argument.cpp?rev=104545&r1=104544&r2=104545&view=diff
==============================================================================
--- cfe/trunk/test/SemaTemplate/enum-argument.cpp (original)
+++ cfe/trunk/test/SemaTemplate/enum-argument.cpp Mon May 24 15:13:53 2010
@@ -21,3 +21,16 @@
 };
 
 X0<int> x0i;
+
+namespace rdar8020920 {
+  template<typename T>
+  struct X {
+    enum { e0 = 32 };
+
+    unsigned long long bitfield : e0;
+
+    void f(int j) {
+      bitfield + j;
+    }
+  };
+}


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