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In particular, accessing the result of *calloc (1, SZ) (if non-NULL) should be known to be all zeroes. gcc/analyzer/ChangeLog: PR analyzer/113333 * region-model-manager.cc (region_model_manager::maybe_fold_unaryop): Casting all zeroes should give all zeroes. gcc/testsuite/ChangeLog: PR analyzer/113333 * c-c++-common/analyzer/calloc-1.c: Add tests. * c-c++-common/analyzer/pr96639.c: Update expected results. * gcc.dg/analyzer/data-model-9.c: Likewise. Signed-off-by: David Malcolm <dmalcolm@redhat.com> |
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