diff options
| -rw-r--r-- | frontends/ast/simplify.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc index 45c796b07..b87af0f8c 100644 --- a/frontends/ast/simplify.cc +++ b/frontends/ast/simplify.cc @@ -1732,8 +1732,9 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage, AstNode *cond = new AstNode(AST_COND, mkconst_int(start_bit, true)); AstNode *lvalue = children[0]->clone(); lvalue->delete_children(); + int end_bit = std::min(start_bit+result_width,source_width) - 1; lvalue->children.push_back(new AstNode(AST_RANGE, - mkconst_int(start_bit+result_width-1, true), mkconst_int(start_bit, true))); + mkconst_int(end_bit, true), mkconst_int(start_bit, true))); cond->children.push_back(new AstNode(AST_BLOCK, new AstNode(type, lvalue, children[1]->clone()))); newNode->children.push_back(cond); } |