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from fc029f5d341 Fortran: fix minor issues with coarrays new 68772737576 Extend "counted_by" attribute to pointer fields of structur [...] new 7165ca43caf Use the counted_by attribute of pointers in builtinin-object-size. new 9d579c522d5 Use the counted_by attribute of pointers in array bound checker.

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Summary of changes: gcc/c-family/c-attribs.cc | 44 ++- gcc/c-family/c-gimplify.cc | 28 ++ gcc/c-family/c-ubsan.cc | 316 +++++++++++++++++++-- gcc/c/c-decl.cc | 91 +++--- gcc/c/c-typeck.cc | 60 ++-- gcc/doc/extend.texi | 41 ++- gcc/testsuite/gcc.dg/flex-array-counted-by.c | 2 +- gcc/testsuite/gcc.dg/pointer-counted-by-1.c | 34 +++ gcc/testsuite/gcc.dg/pointer-counted-by-2.c | 10 + ...array-counted-by-8.c => pointer-counted-by-3.c} | 34 +-- gcc/testsuite/gcc.dg/pointer-counted-by-4-char.c | 6 + gcc/testsuite/gcc.dg/pointer-counted-by-4-float.c | 6 + gcc/testsuite/gcc.dg/pointer-counted-by-4-struct.c | 10 + gcc/testsuite/gcc.dg/pointer-counted-by-4-union.c | 10 + gcc/testsuite/gcc.dg/pointer-counted-by-4.c | 77 +++++ ...array-counted-by-5.c => pointer-counted-by-5.c} | 20 +- gcc/testsuite/gcc.dg/pointer-counted-by-6.c | 56 ++++ gcc/testsuite/gcc.dg/pointer-counted-by-7.c | 32 +++ gcc/testsuite/gcc.dg/pointer-counted-by.c | 111 ++++++++ ...by-bounds-2.c => pointer-counted-by-bounds-2.c} | 32 ++- ...by-bounds-3.c => pointer-counted-by-bounds-3.c} | 14 +- ...by-bounds-4.c => pointer-counted-by-bounds-4.c} | 14 +- .../gcc.dg/ubsan/pointer-counted-by-bounds-5.c | 40 +++ .../gcc.dg/ubsan/pointer-counted-by-bounds.c | 46 +++ gcc/tree-object-size.cc | 19 +- 25 files changed, 1022 insertions(+), 131 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/pointer-counted-by-1.c create mode 100644 gcc/testsuite/gcc.dg/pointer-counted-by-2.c copy gcc/testsuite/gcc.dg/{flex-array-counted-by-8.c => pointer-counted-by-3.c} (60%) create mode 100644 gcc/testsuite/gcc.dg/pointer-counted-by-4-char.c create mode 100644 gcc/testsuite/gcc.dg/pointer-counted-by-4-float.c create mode 100644 gcc/testsuite/gcc.dg/pointer-counted-by-4-struct.c create mode 100644 gcc/testsuite/gcc.dg/pointer-counted-by-4-union.c create mode 100644 gcc/testsuite/gcc.dg/pointer-counted-by-4.c copy gcc/testsuite/gcc.dg/{flex-array-counted-by-5.c => pointer-counted-by-5.c} (62%) create mode 100644 gcc/testsuite/gcc.dg/pointer-counted-by-6.c create mode 100644 gcc/testsuite/gcc.dg/pointer-counted-by-7.c create mode 100644 gcc/testsuite/gcc.dg/pointer-counted-by.c copy gcc/testsuite/gcc.dg/ubsan/{flex-array-counted-by-bounds-2.c => pointer-count [...] copy gcc/testsuite/gcc.dg/ubsan/{flex-array-counted-by-bounds-3.c => pointer-count [...] copy gcc/testsuite/gcc.dg/ubsan/{flex-array-counted-by-bounds-4.c => pointer-count [...] create mode 100644 gcc/testsuite/gcc.dg/ubsan/pointer-counted-by-bounds-5.c create mode 100644 gcc/testsuite/gcc.dg/ubsan/pointer-counted-by-bounds.c