[libc++abi] Remove redundant null pointer check in operator delete
Similar to D52401. Normally operator delete is defined in libc++abi
(LIBCPP_DISABLE_NEW_DELETE_DEFINITIONS is off by default).
C89 220.127.116.11 The free function
C99 18.104.22.168 The free function
C11 22.214.171.124 The free function
If ptr is a null pointer, no action shall occur.
free on MSDN:
If memblock is NULL, the pointer is ignored and free immediately returns.
Reviewed By: #libc_abi, ldionne
Differential Revision: https://reviews.llvm.org/D93339
1 file changed