From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Envelope-to: publicinbox@libre-riscv.org Delivery-date: Tue, 09 Jun 2020 13:36:47 +0100 Received: from localhost ([::1] helo=libre-riscv.org) by libre-soc.org with esmtp (Exim 4.89) (envelope-from ) id 1jidUj-0001Bh-V5; Tue, 09 Jun 2020 13:36:45 +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 1jidUi-0001Ba-DU for libre-riscv-dev@lists.libre-riscv.org; Tue, 09 Jun 2020 13:36:44 +0100 From: bugzilla-daemon@libre-soc.org To: libre-riscv-dev@lists.libre-riscv.org Date: Tue, 09 Jun 2020 12:36:44 +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: cestrauss@gmail.com 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 bnQgIzU3IGZyb20gQ2VzYXIgU3RyYXVzcyA8Y2VzdHJhdXNzQGdtYWlsLmNvbT4gLS0tCihJbiBy ZXBseSB0byBMdWtlIEtlbm5ldGggQ2Fzc29uIExlaWdodG9uIGZyb20gY29tbWVudCAjNTYpCj4g KEluIHJlcGx5IHRvIENlc2FyIFN0cmF1c3MgZnJvbSBjb21tZW50ICM1NSkKPiA+IChJbiByZXBs eSB0byBMdWtlIEtlbm5ldGggQ2Fzc29uIExlaWdodG9uIGZyb20gY29tbWVudCAjNTQpCj4gPiA+ IGhtbW0gaSB0cmllZCBwdXR0aW5nIE9QX05PUCBpbiB0aGVyZSwgYW5kIGJvdGggY29tcHVuaXQx IGFuZCBwYXJhbGxlbAo+ID4gPiBsb2NrZWQgdXAuICB0aGlzIHRlbmRzIHRvIGluZGljYXRlIGEg Y29tYmluYXRvcmlhbCBsb29wLiAgYW55IGNsdWVzPwo+ID4gCj4gPiBJIHNlZS4gSSdtIGxvb2tp bmcgaW50byBpdC4KPiAKPiBpdCBtYXkgYmUgYmVjYXVzZSAibm93IiBpcyBzZXQgYXQgdGhlIGRl ZmF1bHQgYWN0aW9uLiAgaSBoYXZlIHlldCB0byB3b3JrCj4gb3V0IGhvdyB0byBkZXRlY3QgY29t YmluYXRvcmlhbCBsb29wcy4gIHRoZXJlIG1heSBiZSBzb21ldGhpbmcgdGhhdCBjYW4gYmUKPiBk b25lIHVzaW5nIHlvc3lzIHN5bnRoLCBtaWNoYWVsIHNob3dlZCBtZSBzb21ldGhpbmcgYSBjb3Vw bGUgd2Vla3MgYWdvLiAgbHRwCj4gY29tbWFuZD8KCkZvdW5kIGl0IG1hbnVhbGx5LCBzdGFyaW5n IGZyb20gdmFsaWRfbywgYW5kIGNoYW5naW5nIGNvbWIgdG8gc3luYyBhbG9uZyB0aGUKd2F5LiBJ bnRlcmVzdGluZyBkZWJ1ZyBleHBlcmllbmNlLgoKSSBkb24ndCByZWFsbHkgcmVjYWxsIGJlaW5n IG11Y2ggYWZmbGljdGVkIGJ5IHRoaXMgc29ydCBvZiBpc3N1ZS4gQnV0IHRoZW4sIEkKbm9ybWFs bHkgdHJ5IHRvIGF2b2lkIHVzaW5nIGxhdGNoZXMgYXMgbXVjaCBhcyBwb3NzaWJsZSwgdGhpcyBt YXkgYmUgdGhlCnJlYXNvbi4KCmNvbW1pdCBjOGMxM2FkZjNkYTlhNmNhOGI3NzY1ZWRjNTk3ZWM3 ZmRmMTllOGQ4CkF1dGhvcjogQ2VzYXIgU3RyYXVzcyA8Y2VzdHJhdXNzQGdtYWlsLmNvbT4KRGF0 ZTogICBUdWUgSnVuIDkgMDg6NTc6MzEgMjAyMCAtMDMwMAoKICAgIEF2b2lkIGEgY29tYmluYXRv cmlhbCBsb29wIG9uIHZhbGlkX28KCiAgICBUaGUgcGF0aCB3YXM6CgogICAgYWxsX3JkICgxKSAt PiBhbGxfcmRfcHVsc2UgKDEpIC0+IGFsdWlfbC5zICgxKSAtPgogICAgLT4gYWx1LnAudmFsaWRf aSAoMSkgLT4gQUxVICh6ZXJvLWRlbGF5KSAtPiBhbHUubi52YWxpZF9vICgxKSAtPgogICAgLT4g cm9rX2wuciAoMSkgLT4gYWxsX3JkICgwKQoKICAgIERlY2lkZWQgdG8gYnJlYWsgdGhlIGxvb3Ag b24gdGhlIHJlc2V0IG9mIHRoZSByZWFkLWRvbmUsIHdyaXRlIHByb2NlZWQKICAgIGxhdGNoIChy b2tfbC5yKSwgd2l0aCBubyBpbGwgZWZmZWN0cyBvbiBwZXJmb3JtYW5jZS4KCiAgICBBZGRlZCBh IHRlc3QgY2FzZSBmb3IgdGhpcywgdXNpbmcgdGhlIHplcm8tZGVsYXkgQUxVIChPUF9OT1ApLgoK LS0gCllvdSBhcmUgcmVjZWl2aW5nIHRoaXMgbWFpbCBiZWNhdXNlOgpZb3UgYXJlIG9uIHRoZSBD QyBsaXN0IGZvciB0aGUgYnVnLgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpsaWJyZS1yaXNjdi1kZXYgbWFpbGluZyBsaXN0CmxpYnJlLXJpc2N2LWRldkBs aXN0cy5saWJyZS1yaXNjdi5vcmcKaHR0cDovL2xpc3RzLmxpYnJlLXJpc2N2Lm9yZy9tYWlsbWFu L2xpc3RpbmZvL2xpYnJlLXJpc2N2LWRldgo=