6889a3acfe
gcc/ChangeLog: PR middle-end/91631 * builtins.c (component_size): Correct trailing array computation, rename to component_ref_size and move... (compute_objsize): Adjust. * gimple-ssa-warn-restrict.c (builtin_memref::refsize): New member. (builtin_access::strict): Do not consider mememmove. (builtin_access::write_off): New function. (builtin_memref::builtin_memref): Initialize refsize. (builtin_memref::set_base_and_offset): Adjust refoff and compute refsize. (builtin_memref::offset_out_of_bounds): Use ooboff input values. Handle refsize. (builtin_access::builtin_access): Intialize dstoff to destination refeence offset here instead of in maybe_diag_overlap. Adjust referencess even to unrelated objects. Adjust sizrange of bounded string functions to reflect bound. For strcat, adjust destination sizrange by that of source. (builtin_access::strcat_overlap): Adjust offsets and sizes to reflect the increase in destination sizrange above. (builtin_access::overlap): Do not set dstoff here but instead in builtin_access::builtin_access. (check_bounds_or_overlap): Use builtin_access::write_off. (maybe_diag_access_bounds): Add argument. Add informational notes. (dump_builtin_memref, dump_builtin_access): New functions. * tree.c (component_ref_size): ...to here. * tree.h (component_ref_size): Declare. * tree-ssa-strlen (handle_builtin_strcat): Include the terminating nul in the size of the source string. gcc/testsuite/ChangeLog: PR middle-end/91631 * /c-c++-common/Warray-bounds-3.c: Correct expected offsets. * /c-c++-common/Warray-bounds-4.c: Same. * gcc.dg/Warray-bounds-39.c: Remove xfails. * gcc.dg/Warray-bounds-45.c: New test. * gcc.dg/Warray-bounds-46.c: New test. From-SVN: r275981 |
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