DSE assumes that this is the case when forming a calloc from a
malloc + memset pair.
For tests, either update the malloc signature or change the
data layout.
If the parameter had been annotated as nonnull because of the null
check, we want to remove the attribute, since it may no longer apply and
could result in miscompiles if left. Similarly, we also want to remove
undef-implying attributes, since they may not apply anymore either.
Fixes PR52110.
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D111515
There are two sets of new/delete functions, one with Windows/MSVC
mangling and one with Itanium mangling. Mark one set or the other
as unavailable depending on the target.
Split the test malloc-free-delete.ll into three parts: malloc-free.dll
for the C API tests, new-delete-itanium.ll and new-delete-msvc.ll for
the target-specific new/delete tests.
Differential Revision: https://reviews.llvm.org/D110419
