commit 34c2f8c8a16226f757947bf08c5f799d99c9ac1e
author Douglas Gregor <dgregor@apple.com> Wed Dec 22 23:15:38 2010 +0000
committer Douglas Gregor <dgregor@apple.com> Wed Dec 22 23:15:38 2010 +0000
tree af58ddba1fdf0882002a852f7019d8d332cc6e51
parent 0d80abc3b7fb0dca26fb6b272d2c3484f86fb7e7

Be paranoid about NULL size expressions in dependently-sized array types

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122454 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/SemaTemplateDeduction.cpp

diff --git a/lib/Sema/SemaTemplateDeduction.cpp b/lib/Sema/SemaTemplateDeduction.cpp
index c80e2e0..79cbc5a 100644
--- a/lib/Sema/SemaTemplateDeduction.cpp
+++ b/lib/Sema/SemaTemplateDeduction.cpp
@@ -704,9 +704,10 @@
       }
       if (const DependentSizedArrayType *DependentArrayArg
             = dyn_cast<DependentSizedArrayType>(ArrayArg))
-        return DeduceNonTypeTemplateArgument(S, NTTP,
-                                             DependentArrayArg->getSizeExpr(),
-                                             Info, Deduced);
+        if (DependentArrayArg->getSizeExpr())
+          return DeduceNonTypeTemplateArgument(S, NTTP,
+                                               DependentArrayArg->getSizeExpr(),
+                                               Info, Deduced);
 
       // Incomplete type does not match a dependently-sized array type
       return Sema::TDK_NonDeducedMismatch;