From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2209) id 8198F3857C7E; Wed, 5 Oct 2022 00:20:15 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8198F3857C7E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1664929215; bh=VbTzMGe4CQTDKS8fkKWSLnFWi/uD/iEYAZgOD+IA2k8=; h=From:To:Subject:Date:From; b=TXvXE8yWxrluf7v6TP47HBuq6rqMYp+NCHczvMUP6d/6oycVCIQvAYQszjXQThkxf FcQ4ZHKG+7YuzHBK64KES1S/JuABd4OHOpEoA5tqMRNB7wKax+xGFX2GFZQlsP0aSU Mr6hziYys1nA3nTd7nKrxgFu9XGVLt5sfA9sDF3g= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: David Malcolm To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-3075] analyzer: fold -(-(VAL)) to VAL X-Act-Checkin: gcc X-Git-Author: David Malcolm X-Git-Refname: refs/heads/master X-Git-Oldrev: e6fe02d832209393474ca049ca5e0b56a053fadd X-Git-Newrev: 7f42f7adfa69fea029fbb76286048f712bb017ff Message-Id: <20221005002015.8198F3857C7E@sourceware.org> Date: Wed, 5 Oct 2022 00:20:15 +0000 (GMT) List-Id: https://gcc.gnu.org/g:7f42f7adfa69fea029fbb76286048f712bb017ff commit r13-3075-g7f42f7adfa69fea029fbb76286048f712bb017ff Author: David Malcolm Date: Tue Oct 4 20:19:06 2022 -0400 analyzer: fold -(-(VAL)) to VAL gcc/analyzer/ChangeLog: * region-model-manager.cc (region_model_manager::maybe_fold_unaryop): Fold -(-(VAL)) to VAL. Signed-off-by: David Malcolm Diff: --- gcc/analyzer/region-model-manager.cc | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/gcc/analyzer/region-model-manager.cc b/gcc/analyzer/region-model-manager.cc index ed5b9c75910..1956cfc3e8d 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. */