diff options
| -rw-r--r-- | gcc/analyzer/region-model-manager.cc | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/analyzer/region-model-manager.cc b/gcc/analyzer/region-model-manager.cc index ed5b9c7..1956cfc 100644 --- a/gcc/analyzer/region-model-manager.cc +++ b/gcc/analyzer/region-model-manager.cc @@ -432,6 +432,17 @@ region_model_manager::maybe_fold_unaryop (tree type, enum tree_code op, } } break; + case NEGATE_EXPR: + { + /* -(-(VAL)) is VAL, for integer types. */ + if (const unaryop_svalue *unaryop = arg->dyn_cast_unaryop_svalue ()) + if (unaryop->get_op () == NEGATE_EXPR + && type == unaryop->get_type () + && type + && INTEGRAL_TYPE_P (type)) + return unaryop->get_arg (); + } + break; } /* Constants. */ |