| commit | 0b737090a69624dea5318c380620283f0321a92e | |
| author | David Malcolm <dmalcolm@redhat.com> | |
| Fri, 2 Dec 2022 02:28:55 +0000 (1 21:28 -0500) | ||
| committer | David Malcolm <dmalcolm@redhat.com> | |
| Fri, 2 Dec 2022 02:28:55 +0000 (1 21:28 -0500) | ||
| tree | 1819faafd6a9e0b3e79c6028385bfa1c11efd738 | treesnapshot (tar.gz zip) |
| parent | 5cb7d28dcfb11a2810db55b0bbd71fe562bdc2a3 | commitdiff |
analyzer: handle comparisons against negated symbolic values [PR107948]
gcc/analyzer/ChangeLog:
PR analyzer/107948
* region-model-manager.cc
(region_model_manager::maybe_fold_binop): Fold (0 - VAL) to -VAL.
* region-model.cc (region_model::eval_condition): Handle e.g.
"-X <= 0" as equivalent to X >= 0".
gcc/testsuite/ChangeLog:
PR analyzer/107948
* gcc.dg/analyzer/feasibility-pr107948.c: New test.
Signed-off-by: David Malcolm <dmalcolm@redhat.com>
gcc/analyzer/ChangeLog:
PR analyzer/107948
* region-model-manager.cc
(region_model_manager::maybe_fold_binop): Fold (0 - VAL) to -VAL.
* region-model.cc (region_model::eval_condition): Handle e.g.
"-X <= 0" as equivalent to X >= 0".
gcc/testsuite/ChangeLog:
PR analyzer/107948
* gcc.dg/analyzer/feasibility-pr107948.c: New test.
Signed-off-by: David Malcolm <dmalcolm@redhat.com>
| gcc/analyzer/region-model-manager.cc | diffblobblamehistory | |
| gcc/analyzer/region-model.cc | diffblobblamehistory | |
| gcc/testsuite/gcc.dg/analyzer/feasibility-pr107948.c | [new file with mode: 0644] | blob |