[llvm] r254592 - Fix class SCEVPredicate has virtual functions and accessible non-virtual destructor.

[Andy Gibbs via llvm-commits]

Author: andyg
Date: Thu Dec  3 02:20:20 2015
New Revision: 254592

URL: http://llvm.org/viewvc/llvm-project?rev=254592&view=rev
Log:
Fix class SCEVPredicate has virtual functions and accessible non-virtual destructor.

It is not enough to simply make the destructor virtual since there is a g++ 4.7
issue (see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53613) that throws the
error "looser throw specifier for ... overridding ~SCEVPredicate() noexcept".

Modified:
    llvm/trunk/include/llvm/Analysis/ScalarEvolution.h
    llvm/trunk/lib/Analysis/ScalarEvolution.cpp

Modified: llvm/trunk/include/llvm/Analysis/ScalarEvolution.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Analysis/ScalarEvolution.h?rev=254592&r1=254591&r2=254592&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Analysis/ScalarEvolution.h (original)
+++ llvm/trunk/include/llvm/Analysis/ScalarEvolution.h Thu Dec  3 02:20:20 2015
@@ -183,7 +183,7 @@ namespace llvm {
 
   protected:
     SCEVPredicateKind Kind;
-    ~SCEVPredicate() = default;
+    virtual ~SCEVPredicate();
     SCEVPredicate(const SCEVPredicate&) = default;
     SCEVPredicate &operator=(const SCEVPredicate&) = default;
 

Modified: llvm/trunk/lib/Analysis/ScalarEvolution.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/ScalarEvolution.cpp?rev=254592&r1=254591&r2=254592&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/ScalarEvolution.cpp (original)
+++ llvm/trunk/lib/Analysis/ScalarEvolution.cpp Thu Dec  3 02:20:20 2015
@@ -9643,6 +9643,8 @@ SCEVPredicate::SCEVPredicate(const Foldi
                              SCEVPredicateKind Kind)
     : FastID(ID), Kind(Kind) {}
 
+SCEVPredicate::~SCEVPredicate() {}
+
 SCEVEqualPredicate::SCEVEqualPredicate(const FoldingSetNodeIDRef ID,
                                        const SCEVUnknown *LHS,
                                        const SCEVConstant *RHS)