06bc1b0c53
Allow returning dynamic expressions from ADDR_EXPR for __builtin_dynamic_object_size and also allow offsets to be dynamic. gcc/ChangeLog: PR middle-end/70090 * tree-object-size.c (size_valid_p): New function. (size_for_offset): Remove OFFSET constness assertion. (addr_object_size): Build dynamic expressions for object sizes and use size_valid_p to decide if it is valid for the given OBJECT_SIZE_TYPE. (compute_builtin_object_size): Allow dynamic offsets when computing size at O0. (call_object_size): Call size_valid_p. (plus_stmt_object_size): Allow non-constant offset and use size_valid_p to decide if it is valid for the given OBJECT_SIZE_TYPE. gcc/testsuite/ChangeLog: PR middle-end/70090 * gcc.dg/builtin-dynamic-object-size-0.c: Add new tests. * gcc.dg/builtin-object-size-1.c (test1) [__builtin_object_size]: Adjust expected output for dynamic object sizes. * gcc.dg/builtin-object-size-2.c (test1) [__builtin_object_size]: Likewise. * gcc.dg/builtin-object-size-3.c (test1) [__builtin_object_size]: Likewise. * gcc.dg/builtin-object-size-4.c (test1) [__builtin_object_size]: Likewise. Signed-off-by: Siddhesh Poyarekar <siddhesh@gotplt.org> |
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README
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