From: Nick Lewycky <nicholas@mxc.ca>
Date: Fri, 3 Dec 2010 01:10:02 +0000 (+0000)
Subject: Add a flag to control the "indirection of non-volatile null pointer will be
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a427b49f99bd2416731de0d4f8bdec12b4807e7c;p=clang

Add a flag to control the "indirection of non-volatile null pointer will be
deleted, not trap" warning. Fixed PR8729. Patch by Elias Pipping!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120771 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Basic/DiagnosticGroups.td b/include/clang/Basic/DiagnosticGroups.td
index 711380fa39..92b29b2c98 100644
--- a/include/clang/Basic/DiagnosticGroups.td
+++ b/include/clang/Basic/DiagnosticGroups.td
@@ -75,6 +75,7 @@ def : DiagGroup<"newline-eof">;
 def LongLong : DiagGroup<"long-long">;
 def MismatchedTags : DiagGroup<"mismatched-tags">;
 def MissingFieldInitializers : DiagGroup<"missing-field-initializers">;
+def NullDereference : DiagGroup<"null-dereference">;
 def InitializerOverrides : DiagGroup<"initializer-overrides">;
 def NonNull : DiagGroup<"nonnull">;
 def : DiagGroup<"nonportable-cfstrings">;
diff --git a/include/clang/Basic/DiagnosticSemaKinds.td b/include/clang/Basic/DiagnosticSemaKinds.td
index 6945c17b92..d3c1a50a66 100644
--- a/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/include/clang/Basic/DiagnosticSemaKinds.td
@@ -2295,7 +2295,7 @@ def err_typecheck_unary_expr : Error<
 def err_typecheck_indirection_requires_pointer : Error<
   "indirection requires pointer operand (%0 invalid)">;
 def warn_indirection_through_null : Warning<
-  "indirection of non-volatile null pointer will be deleted, not trap">;
+  "indirection of non-volatile null pointer will be deleted, not trap">, InGroup<NullDereference>;
 def note_indirection_through_null : Note<
   "consider using __builtin_trap() or qualifying pointer with 'volatile'">;