diff options
author | tstellar <tstellar@91177308-0d34-0410-b5e6-96231b3b80d8> | 2012-09-24 15:52:06 +0000 |
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committer | tstellar <tstellar@91177308-0d34-0410-b5e6-96231b3b80d8> | 2012-09-24 15:52:06 +0000 |
commit | 85ed560b4b38c7d1178dbc84e37f9b6c3d611b6e (patch) | |
tree | af95ce0f88e2f86cadb6f0a0fb4186fdeb6f6dce /include | |
parent | bf33081abc6a2c9a5d2570257f3a8a6513dbd595 (diff) |
Casting: assert that pointer arguments to isa<> are non-null.
This silences several analyzer warnings within LLVM, and provides a slightly
nicer crash experience when someone calls isa<>, cast<>, or dyn_cast<> with
a null pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/R600/@164515 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
-rw-r--r-- | include/llvm/Support/Casting.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/llvm/Support/Casting.h b/include/llvm/Support/Casting.h index 3aab4367f5..d35febbe6d 100644 --- a/include/llvm/Support/Casting.h +++ b/include/llvm/Support/Casting.h @@ -65,18 +65,21 @@ template <typename To, typename From> struct isa_impl_cl<To, const From> { template <typename To, typename From> struct isa_impl_cl<To, From*> { static inline bool doit(const From *Val) { + assert(Val && "isa<> used on a null pointer"); return isa_impl<To, From>::doit(*Val); } }; template <typename To, typename From> struct isa_impl_cl<To, const From*> { static inline bool doit(const From *Val) { + assert(Val && "isa<> used on a null pointer"); return isa_impl<To, From>::doit(*Val); } }; template <typename To, typename From> struct isa_impl_cl<To, const From*const> { static inline bool doit(const From *Val) { + assert(Val && "isa<> used on a null pointer"); return isa_impl<To, From>::doit(*Val); } }; |