From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 7806) id B43A7385740F; Wed, 28 Sep 2022 15:29:22 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B43A7385740F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1664378962; bh=Hm0z8KLR65qWDeZlCr+GVzUInDnhnPsBRhZ1i6KUpf4=; h=From:To:Subject:Date:From; b=pgfsxjl+ZtU54CcWuMfMW6bQbhGpZrudt1ATwSF0gt5iWCfhm48WvObDaK/d5jyBx 4fZ0UvZy8FrhQtVU71nvYhw8612cNb9TepHnknCONJpx0/kUoWy5Bbu8l8LC/MX0Ii c9tW6Ah7m6dBtT1acW9EzzcLFV7Kwx9YpwnMqzEk= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Stefan Schulze Frielinghaus To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-2917] var-tracking: Add entry values up to max register mode X-Act-Checkin: gcc X-Git-Author: Stefan Schulze Frielinghaus X-Git-Refname: refs/heads/master X-Git-Oldrev: d0b00b63a39108311f2e6f9cbe9072579f57df7c X-Git-Newrev: 5d7be27bf7ef63c770a591f69845c4245522cd76 Message-Id: <20220928152922.B43A7385740F@sourceware.org> Date: Wed, 28 Sep 2022 15:29:22 +0000 (GMT) List-Id: https://gcc.gnu.org/g:5d7be27bf7ef63c770a591f69845c4245522cd76 commit r13-2917-g5d7be27bf7ef63c770a591f69845c4245522cd76 Author: Stefan Schulze Frielinghaus Date: Wed Sep 28 17:27:11 2022 +0200 var-tracking: Add entry values up to max register mode For parameter of type integer which do not consume a whole register (modulo sign/zero extension) this patch adds entry values up to maximal register mode. gcc/ChangeLog: * var-tracking.cc (vt_add_function_parameter): Add entry values up to maximal register mode. Diff: --- gcc/var-tracking.cc | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/gcc/var-tracking.cc b/gcc/var-tracking.cc index 235981d100f..9c40ec4fb8b 100644 --- a/gcc/var-tracking.cc +++ b/gcc/var-tracking.cc @@ -9906,6 +9906,23 @@ vt_add_function_parameter (tree parm) VAR_INIT_STATUS_INITIALIZED, NULL, INSERT); } } + + if (GET_MODE_CLASS (mode) == MODE_INT) + { + machine_mode wider_mode_iter; + FOR_EACH_WIDER_MODE (wider_mode_iter, mode) + { + if (!HWI_COMPUTABLE_MODE_P (wider_mode_iter)) + break; + rtx wider_reg + = gen_rtx_REG (wider_mode_iter, REGNO (incoming)); + cselib_val *wider_val + = cselib_lookup_from_insn (wider_reg, wider_mode_iter, 1, + VOIDmode, get_insns ()); + preserve_value (wider_val); + record_entry_value (wider_val, wider_reg); + } + } } } else if (GET_CODE (incoming) == PARALLEL && !dv_onepart_p (dv))