From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Envelope-to: publicinbox@libre-riscv.org Delivery-date: Sat, 06 Jun 2020 21:53:08 +0100 Received: from localhost ([::1] helo=libre-riscv.org) by libre-soc.org with esmtp (Exim 4.89) (envelope-from ) id 1jhfoR-0004Rh-D0; Sat, 06 Jun 2020 21:53:07 +0100 Received: from localhost ([127.0.0.1] helo=bugs.libre-soc.org) by libre-soc.org with esmtp (Exim 4.89) (envelope-from ) id 1jhfoP-0004RW-Cr for libre-riscv-dev@lists.libre-riscv.org; Sat, 06 Jun 2020 21:53:05 +0100 From: bugzilla-daemon@libre-soc.org To: libre-riscv-dev@lists.libre-riscv.org Date: Sat, 06 Jun 2020 20:53:05 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Libre-SOC's first SoC X-Bugzilla-Component: Source Code X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: lkcl@lkcl.net X-Bugzilla-Status: CONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: cestrauss@gmail.com X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: https://bugs.libre-soc.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Subject: [libre-riscv-dev] [Bug 336] ALU CompUnit needs to recognise that RA (src1) can be zero X-BeenThere: libre-riscv-dev@lists.libre-riscv.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Libre-RISCV General Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Libre-RISCV General Development Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: libre-riscv-dev-bounces@lists.libre-riscv.org Sender: "libre-riscv-dev" Archived-At: List-Archive: aHR0cHM6Ly9idWdzLmxpYnJlLXNvYy5vcmcvc2hvd19idWcuY2dpP2lkPTMzNgoKLS0tIENvbW1l bnQgIzUwIGZyb20gTHVrZSBLZW5uZXRoIENhc3NvbiBMZWlnaHRvbiA8bGtjbEBsa2NsLm5ldD4g LS0tCihJbiByZXBseSB0byBDZXNhciBTdHJhdXNzIGZyb20gY29tbWVudCAjNDkpCj4gSSdtIGFk dmFuY2luZyBvbiB0aGUgQUxVIENvbXBVbml0IHBhcmFsbGVsIHVuaXQgdGVzdC4gSGF2aW5nIGdv bmUgcGFzdCB0aGUKPiByZCByZWwvZ28gaW50ZXJmYWNlLCBJJ3ZlIG1vdmVkIG9uIHRvIHRoZSBB TFUgaW5wdXQgaW50ZXJmYWNlLgo+IAo+IFRoZSBBTFUgaW5wdXQgaW50ZXJmYWNlIHVzZXMgYSB2 YWxpZC9yZWFkeSBwcm90b2NvbC4gSSBhc3N1bWUgdGhhdCB0aGlzLAo+IGxpa2UgcmVsL2dvLCBp cyBzaW1pbGFyIHRvIHRoZSB3aXNoYm9uZSBpbnRlcmZhY2UuCgpzdGFuZGFyZCB3aXNoYm9uZSAv IEFYSTQgeWVzLiAgdGhlIGRpZmZlcmVuY2UgYmVpbmcgdGhhdCByZWwvZ28gd2lsbCBORVZFUiBi ZQpiYWNrIHRvIGJhY2sgKG11bHRpcGxlIHRyYW5zYWN0aW9ucyBvbmUgYWZ0ZXIgdGhlIG90aGVy KSBob3dldmVyIHJlYWR5L3ZhbGlkCmNhbiBiZS4KCmhvd2V2ZXIgaW4gdGhlIE11bHRpQ29tcFVu aXRzIGl0IGlzIG5ldmVyIHVzZWQgZm9yIHRoYXQsIGJlY2F1c2UgTUNVIGlzIHNpbmdsZQp0cmFu c2FjdGlvbiBvbmx5LgoKPiBBcyBzdWNoOgo+IAo+IDEpIFRoZSBwb3J0IGlzIGlkbGUgd2hlbiB2 YWxpZF9vIGFuZCByZWFkeV9pIGFyZSBib3RoIHplcm8uCj4gMikgSWYgdmFsaWRfbyBpcyBoaWdo IGJ1dCByZWFkeV9pIGlzIGxvdywgd2UgaGF2ZSBhIHdhaXQgc3RhdGUuCj4gMykgV2hlbiBib3Ro IGFyZSBoaWdoLCB3ZSBoYXZlIGEgZGF0YSB0cmFuc2ZlciwgYW5kIHRoZSB0cmFuc2FjdGlvbiBl bmRzLgoKb3IsIHRha2VzIHBsYWNlIG9uIHRoYXQgY2xvY2sgY3ljbGUsIGFiZCBlbmRzICJhcyBm YXIgYXMgdGhlIG5leHQgY2xvY2sgY3ljbGUKaXMgY29uY2VybmVkIi4KCj4gNCkgSXQgaXMgaWxs ZWdhbCB0byBrZWVwIHJlYWR5X2kgaGlnaCB3aGVuIHZhbGlkX28gaXMgbG93LgoKPiBUaGlzIGlz IHN1cHBvc2VkIHRvIGNvdmVyIGEgc2luZ2xlIHRyYW5zYWN0aW9uLCBidXQgaW4gbXkgdW5kZXN0 YW5kaW5nIEkgc2VlCj4gNSBhY2tub2xvd2RnZWQgYmFjay10by1iYWNrIHRyYW5zYWN0aW9ucyBm b2xsb3dlZCBieSBhIGlsbGVnYWwgc3RhdGUuCgp0aGlzIGRvZXMgbm90IHN1cnByaXNlIG1lLiAg dGhlIGFsdV9oaWVyLnB5IEFMVXMgd2VyZSB3cml0dGVuICJpbiBhIGh1cnJ5IiBhbmQKYXJlIHRo ZXJlIHB1cmVseSBmb3IgdGVzdCBwdXJwb3NlcyBvbmx5LgoKCj4gQ2FuIEkgZ28gYWhlYWQgYW5k IGZpeCBhbGwgdGhlc2UgY2FzZXMsIHRvIGJlIG1vcmUgbGlrZSB3aXNoYm9uZT8gT3IsIGlzIG15 Cj4gYXNzdW1wdGlvbiBvZiB3aXNoYm9uZSBsaWtlbmVzcyB3cm9uZz8KCnllcyBwbGVhc2UgZG8u Li4KCm9yLi4uCgpsYXN0IHdlZWsgaSBjb25zaWRlcmVkIHRocm93aW5nIHRoZW0gb3V0IGFuZCB1 c2luZyBubXV0aWwuc2luZ2xlcGlwZSBBTFVzCmluc3RlYWQuCgppZiB5b3UgZmVlbCBpdCBkb2Vz IG5vdCB0YWtlIGEgbG9uZyB0aW1lIHRvICJmaXgiIGFsdV9oaWVyLnB5IEFMVSBjbGFzc2VzCnBs ZWFzZSBkbyBnbyBhaGVhZC4KCm90aGVyd2lzZSBpZiBpdCB3aWxsIHRha2UgYSBsb25nIHRpbWUg aXQgd291bGQgYmUgYmV0dGVyIHRvIGRyb3AgdGhlbSBhbmQKcmVwbGFjZSB0aGVtIHdpdGggQUxV cyBiYXNlZCBvbiBlLmcuIFRlc3RCdWZQaXBlIChzZWUgbm11dGlsIHVuaXQgdGVzdHMpCgphZ2Fp bjogdGhleSBhcmUgb25seSB0aGVyZSBmb3IgdGVzdCBwdXJwb3NlcywgaG93ZXZlciBhcyB0ZXN0 cyBpdCBpcyBpbmRlZWQKZ29vZCBmb3IgdGhlbSB0byBwcm9wZXJseSBjb25mb3JtIHRvIHRoZSBy ZXF1aXJlZCBBUEkKCi0tIApZb3UgYXJlIHJlY2VpdmluZyB0aGlzIG1haWwgYmVjYXVzZToKWW91 IGFyZSBvbiB0aGUgQ0MgbGlzdCBmb3IgdGhlIGJ1Zy4KX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX18KbGlicmUtcmlzY3YtZGV2IG1haWxpbmcgbGlzdApsaWJy ZS1yaXNjdi1kZXZAbGlzdHMubGlicmUtcmlzY3Yub3JnCmh0dHA6Ly9saXN0cy5saWJyZS1yaXNj di5vcmcvbWFpbG1hbi9saXN0aW5mby9saWJyZS1yaXNjdi1kZXYK