r233494 - [parser] Push _Atomic locs through DeclaratorChunk.

[Benjamin Kramer]

Author: d0k
Date: Sun Mar 29 11:42:06 2015
New Revision: 233494

URL: http://llvm.org/viewvc/llvm-project?rev=233494&view=rev
Log:
[parser] Push _Atomic locs through DeclaratorChunk.

Otherwise it stays uninitialized with potentially catastrophic results.
Found by afl-fuzz.

Modified:
    cfe/trunk/include/clang/Sema/DeclSpec.h
    cfe/trunk/lib/Parse/ParseDecl.cpp
    cfe/trunk/test/Parser/atomic.c

Modified: cfe/trunk/include/clang/Sema/DeclSpec.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Sema/DeclSpec.h?rev=233494&r1=233493&r2=233494&view=diff
==============================================================================
--- cfe/trunk/include/clang/Sema/DeclSpec.h (original)
+++ cfe/trunk/include/clang/Sema/DeclSpec.h Sun Mar 29 11:42:06 2015
@@ -1415,7 +1415,8 @@ struct DeclaratorChunk {
   static DeclaratorChunk getPointer(unsigned TypeQuals, SourceLocation Loc,
                                     SourceLocation ConstQualLoc,
                                     SourceLocation VolatileQualLoc,
-                                    SourceLocation RestrictQualLoc) {
+                                    SourceLocation RestrictQualLoc,
+                                    SourceLocation AtomicQualLoc) {
     DeclaratorChunk I;
     I.Kind                = Pointer;
     I.Loc                 = Loc;
@@ -1423,6 +1424,7 @@ struct DeclaratorChunk {
     I.Ptr.ConstQualLoc    = ConstQualLoc.getRawEncoding();
     I.Ptr.VolatileQualLoc = VolatileQualLoc.getRawEncoding();
     I.Ptr.RestrictQualLoc = RestrictQualLoc.getRawEncoding();
+    I.Ptr.AtomicQualLoc   = AtomicQualLoc.getRawEncoding();
     I.Ptr.AttrList        = nullptr;
     return I;
   }

Modified: cfe/trunk/lib/Parse/ParseDecl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseDecl.cpp?rev=233494&r1=233493&r2=233494&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseDecl.cpp (original)
+++ cfe/trunk/lib/Parse/ParseDecl.cpp Sun Mar 29 11:42:06 2015
@@ -4782,7 +4782,8 @@ void Parser::ParseDeclaratorInternal(Dec
       D.AddTypeInfo(DeclaratorChunk::getPointer(DS.getTypeQualifiers(), Loc,
                                                 DS.getConstSpecLoc(),
                                                 DS.getVolatileSpecLoc(),
-                                                DS.getRestrictSpecLoc()),
+                                                DS.getRestrictSpecLoc(),
+                                                DS.getAtomicSpecLoc()),
                     DS.getAttributes(),
                     SourceLocation());
     else

Modified: cfe/trunk/test/Parser/atomic.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Parser/atomic.c?rev=233494&r1=233493&r2=233494&view=diff
==============================================================================
--- cfe/trunk/test/Parser/atomic.c (original)
+++ cfe/trunk/test/Parser/atomic.c Sun Mar 29 11:42:06 2015
@@ -36,3 +36,5 @@ typedef _Atomic(int __attribute__((vecto
 
 struct S
 _Atomic atomic_s_no_missing_semicolon;
+
+int *const _Atomic atomic_return_type();