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from 32c3a753906 c++: Implement P0466R5 __cpp_lib_is_layout_compatible compi [...] new b48d4e68186 Move more warning code to gimple-ssa-warn-access etc.

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Summary of changes: gcc/builtins.c | 22 +- gcc/calls.c | 760 --------------------------- gcc/calls.h | 15 +- gcc/gimple-ssa-warn-access.cc | 683 +++++++++++++++++++++++- gcc/gimple-ssa-warn-access.h | 4 +- gcc/gimple-ssa-warn-restrict.c | 1 + gcc/pointer-query.cc | 195 +++++-- gcc/pointer-query.h | 11 + gcc/testsuite/gcc.dg/Wstringop-overflow-72.c | 13 + gcc/testsuite/gcc.dg/attr-alloc_size-5.c | 2 +- gcc/testsuite/gcc.dg/attr-alloc_size-7.c | 45 +- gcc/testsuite/gcc.dg/attr-alloc_size-8.c | 2 +- gcc/tree.c | 54 ++ gcc/tree.h | 6 + 14 files changed, 952 insertions(+), 861 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/Wstringop-overflow-72.c