[PATCH] D78853: [Sema] Fix null pointer dereference warnings [1/n]

[Mandeep Singh Grang via Phabricator via cfe-commits]

mgrang created this revision.
mgrang added reviewers: rsmith, efriedma, rnk, dblaikie.

Running the PREfast static analysis tool on clang resulted in several null
pointer dereference warnings. This is the first of several patches to fix
these.

The full list of warnings reported is here: https://docs.google.com/spreadsheets/d/1h_3tHxsgBampxb7PXoB5lgwiBSpTty9RLe5maIQxnTk/edit#gid=2014408543


https://reviews.llvm.org/D78853

Files:
  clang/lib/Sema/SemaDecl.cpp
  clang/lib/Sema/SemaDeclCXX.cpp
  clang/lib/Sema/SemaExpr.cpp
  clang/lib/Sema/SemaExprCXX.cpp
  clang/lib/Sema/SemaExprObjC.cpp
  clang/lib/Sema/SemaInit.cpp
  clang/lib/Sema/SemaOverload.cpp
  clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
  clang/lib/Sema/SemaTemplateVariadic.cpp
  clang/lib/Sema/SemaType.cpp
  clang/lib/Sema/TreeTransform.h

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