commit 3b332ab132fa85c83833d74d400f6e126f52fbd2
author John McCall <rjmccall@apple.com> Sat Feb 26 08:27:17 2011 +0000
committer John McCall <rjmccall@apple.com> Sat Feb 26 08:27:17 2011 +0000
tree 6c6a6d685c8b86cfa0b439b57d81dfa59d08d049
parent bc7fbf0d37b286b37d96b033dfaaabf9c729bca8

Don't crash during constant-evaluation of 1/(1/0).  PR9262.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126541 91177308-0d34-0410-b5e6-96231b3b80d8

lib/AST/ExprConstant.cpp

diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 656bb99..3a5eb66 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -2926,7 +2926,7 @@
           Exp->getOpcode() == BO_Rem) {
         // Evaluate gives an error for undefined Div/Rem, so make sure
         // we don't evaluate one.
-        if (LHSResult.Val != 2 && RHSResult.Val != 2) {
+        if (LHSResult.Val == 0 && RHSResult.Val == 0) {
           llvm::APSInt REval = Exp->getRHS()->EvaluateAsInt(Ctx);
           if (REval == 0)
             return ICEDiag(1, E->getLocStart());