diff options
| author | David Malcolm <dmalcolm@redhat.com> | 2022-10-07 12:41:59 -0400 |
|---|---|---|
| committer | David Malcolm <dmalcolm@redhat.com> | 2022-10-07 12:41:59 -0400 |
| commit | f09b99550a3c6cd16f5e9150ebd4b1d87033dcbd (patch) | |
| tree | 5dfa5182f6242910eb9770406e78020e5cdd534b /libcpp/include/cpplib.h | |
| parent | eb491ea5c10955c667ceeda76dede393c93a377b (diff) | |
| download | gcc-f09b99550a3c6cd16f5e9150ebd4b1d87033dcbd.zip gcc-f09b99550a3c6cd16f5e9150ebd4b1d87033dcbd.tar.gz gcc-f09b99550a3c6cd16f5e9150ebd4b1d87033dcbd.tar.bz2 | |
analyzer: extract bits from integer constants [PR105783]
Fix a false positive from -Wanalyzer-null-dereference due to -fanalyzer
failing to grok the value of a particular boolean field initialized to a
constant.
gcc/analyzer/ChangeLog:
PR analyzer/105783
* region-model.cc (selftest::get_bit): New function.
(selftest::test_bits_within_svalue_folding): New.
(selfftest::analyzer_region_model_cc_tests): Call it.
* svalue.cc (constant_svalue::maybe_fold_bits_within): Handle the
case of extracting a single bit.
gcc/testsuite/ChangeLog:
PR analyzer/105783
* gcc.dg/analyzer/pr105783.c: New test.
Signed-off-by: David Malcolm <dmalcolm@redhat.com>
Diffstat (limited to 'libcpp/include/cpplib.h')
0 files changed, 0 insertions, 0 deletions