aaron.ballman added a comment.
Precommit CI is still failing on test/SemaCXX/constant-expression-cxx2a.cpp
with a false positive warning. You'll need to investigate why that's happening,
but I suspect that the warning logic isn't aware that `dynamic_cast` can return
null.
================
Comment at: clang/lib/Sema/SemaChecking.cpp:14726
- if (UnaryOperator *UO = dyn_cast<UnaryOperator>(E)) {
+ if (UnaryOperator *UO = dyn_cast<UnaryOperator>(E->IgnoreParenCasts())) {
if (UO->getOpcode() != UO_AddrOf)
----------------
================
Comment at: clang/test/Sema/warn-tautological-compare.c:97-100
+void test4(void)
+{
+int *a = (void *) 0;
+int b = (&a) == ((void *) 0); // expected-warning {{comparison of address of
'a' equal to a null pointer is always false}}
----------------
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D149000/new/
https://reviews.llvm.org/D149000
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