13ad6d9f50
When moving the -fanalyzer tests for -ftrivial-auto-var-init to the "torture" subdirectory of gcc.dg/analyzer I noticed that -fanalyzer wasn't always properly checking for initialization of return values. The issue was that some "return" handling was using region_model::copy_region to copy to the RESULT_DECL, and copy_region wasn't checking for poisoned svalues. This patch eliminates region_model::copy_region in favor of simply doing a get_ravlue/set_value pair, fixing the issue. gcc/analyzer/ChangeLog: * region-model.cc (region_model::on_return): Replace usage of copy_region with get_rvalue/set_value pair. (region_model::pop_frame): Likewise. (selftest::test_compound_assignment): Likewise. * region-model.h (region_model::copy_region): Delete decl. * region.cc (region_model::copy_region): Delete. gcc/testsuite/ChangeLog: * gcc.dg/analyzer/torture/ubsan-1.c: Add missing return stmts. * gcc.dg/analyzer/uninit-trivial-auto-var-init-pattern.c: Move to... * gcc.dg/analyzer/torture/uninit-trivial-auto-var-init-pattern.c: ...here. * gcc.dg/analyzer/uninit-trivial-auto-var-init-uninitialized.c: Move to... * gcc.dg/analyzer/torture/uninit-trivial-auto-var-init-uninitialized.c: ...here. * gcc.dg/analyzer/uninit-trivial-auto-var-init-zero.c: Move to... * gcc.dg/analyzer/torture/uninit-trivial-auto-var-init-zero.c: ...here. Signed-off-by: David Malcolm <dmalcolm@redhat.com> |
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