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From: Richard Henderson <richard.henderson@linaro.org>
To: Taylor Simpson <tsimpson@quicinc.com>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Cc: "ale@rev.ng" <ale@rev.ng>,
	"riku.voipio@iki.fi" <riku.voipio@iki.fi>,
	"philmd@redhat.com" <philmd@redhat.com>,
	"laurent@vivier.eu" <laurent@vivier.eu>,
	"aleksandar.m.mail@gmail.com" <aleksandar.m.mail@gmail.com>
Subject: Re: [RFC PATCH v3 26/34] Hexagon (target/hexagon) macros referenced in instruction semantics
Date: Fri, 9 Oct 2020 07:59:29 -0500	[thread overview]
Message-ID: <b609e70e-aa24-f724-43ba-8898bc8e956f@linaro.org> (raw)
In-Reply-To: <BYAPR02MB4886A2E28C56A059B9F54942DE0B0@BYAPR02MB4886.namprd02.prod.outlook.com>

On 10/8/20 3:54 PM, Taylor Simpson wrote:
> I'll reach out to the architects and ask if there is a case where doing the store first could be a problem - and also about the priority of exceptions.

Of course there are cases where doing the store first will cause problems.

> This may or may not be possible.  We already have to reorder to put .new consumers after the producers, and we have to keep the change-of-flow instructions in the original order.  So, I'm reluctant to go down this path worrying that there will be a long tail of corner case bugs to engineer out.

Well, do as you like, I suppose, but I think the merging thing that you were
trying to do is just as fraught with peril.


r~


  reply	other threads:[~2020-10-09 13:01 UTC|newest]

Thread overview: 122+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-18 15:50 [RFC PATCH v3 00/34] Hexagon patch series Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 01/34] Hexagon Update MAINTAINERS file Taylor Simpson
2020-08-26  1:55   ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 02/34] Hexagon (target/hexagon) README Taylor Simpson
2020-08-26  2:06   ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 03/34] Hexagon (include/elf.h) ELF machine definition Taylor Simpson
2020-08-26  2:06   ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 04/34] Hexagon (target/hexagon) scalar core definition Taylor Simpson
2020-08-26 13:35   ` Richard Henderson
2020-08-26 23:51     ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 05/34] Hexagon (target/hexagon) register names Taylor Simpson
2020-08-26 13:39   ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 06/34] Hexagon (disas) disassembler Taylor Simpson
2020-08-26 13:52   ` Richard Henderson
2020-08-26 23:52     ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 07/34] Hexagon (target/hexagon) scalar core helpers Taylor Simpson
2020-08-26 14:16   ` Richard Henderson
2020-08-26 23:52     ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 08/34] Hexagon (target/hexagon) GDB Stub Taylor Simpson
2020-08-26 14:17   ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 09/34] Hexagon (target/hexagon) architecture types Taylor Simpson
2020-08-26 14:19   ` Richard Henderson
2020-08-26 23:52     ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 10/34] Hexagon (target/hexagon) instruction and packet types Taylor Simpson
2020-08-26 14:22   ` Richard Henderson
2020-08-26 23:52     ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 11/34] Hexagon (target/hexagon) register fields Taylor Simpson
2020-08-26 14:29   ` Richard Henderson
2020-08-26 23:52     ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 12/34] Hexagon (target/hexagon) instruction attributes Taylor Simpson
2020-08-26 14:34   ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 13/34] Hexagon (target/hexagon) register map Taylor Simpson
2020-08-26 14:36   ` Richard Henderson
2020-08-26 23:52     ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 14/34] Hexagon (target/hexagon) instruction/packet decode Taylor Simpson
2020-08-26 15:06   ` Richard Henderson
2020-08-26 23:52     ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 15/34] Hexagon (target/hexagon) instruction printing Taylor Simpson
2020-08-26 15:08   ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 16/34] Hexagon (target/hexagon) utility functions Taylor Simpson
2020-08-26 15:10   ` Richard Henderson
2020-08-26 23:52     ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 17/34] Hexagon (target/hexagon/imported) arch import - macro definitions Taylor Simpson
2020-08-26 15:17   ` Richard Henderson
2020-08-26 23:52     ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 18/34] Hexagon (target/hexagon/imported) arch import - instruction semantics Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 19/34] Hexagon (target/hexagon/imported) arch import - instruction encoding Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 20/34] Hexagon (target/hexagon) generator phase 1 - C preprocessor for semantics Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 21/34] Hexagon (target/hexagon) generator phase 2 - generate header files Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 22/34] Hexagon (target/hexagon) generator phase 3 - C preprocessor for decode tree Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 23/34] Hexagon (target/hexagon) generater phase 4 - " Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 24/34] Hexagon (target/hexagon) opcode data structures Taylor Simpson
2020-08-26 15:25   ` Richard Henderson
2020-08-26 23:52     ` Taylor Simpson
2020-08-27  4:05       ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 25/34] Hexagon (target/hexagon) macros to interface with the generator Taylor Simpson
2020-08-29  0:49   ` Richard Henderson
2020-08-30 20:30     ` Taylor Simpson
2020-08-30 20:59       ` Richard Henderson
2020-08-30 21:20         ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 26/34] Hexagon (target/hexagon) macros referenced in instruction semantics Taylor Simpson
2020-08-29  1:16   ` Richard Henderson
2020-08-30 20:23     ` Taylor Simpson
2020-08-30 21:06       ` Richard Henderson
2020-10-08 15:00     ` Taylor Simpson
2020-10-08 17:30       ` Richard Henderson
2020-10-08 18:51         ` Taylor Simpson
2020-10-08 20:02           ` Richard Henderson
2020-10-08 20:54             ` Taylor Simpson
2020-10-09 12:59               ` Richard Henderson [this message]
2020-10-09 16:02                 ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 27/34] Hexagon (target/hexagon) instruction classes Taylor Simpson
2020-08-29  1:37   ` Richard Henderson
2020-08-30 20:04     ` Taylor Simpson
2020-08-30 20:43       ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 28/34] Hexagon (target/hexagon) TCG generation helpers Taylor Simpson
2020-08-29  1:48   ` Richard Henderson
2020-08-30 19:53     ` Taylor Simpson
2020-08-30 20:52       ` Richard Henderson
2020-08-30 21:38         ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 29/34] Hexagon (target/hexagon) TCG generation Taylor Simpson
2020-08-29  1:58   ` Richard Henderson
2020-08-30 19:49     ` Taylor Simpson
2020-08-18 15:50 ` [RFC PATCH v3 30/34] Hexagon (target/hexagon) TCG for instructions with multiple definitions Taylor Simpson
2020-08-29  2:02   ` Richard Henderson
2020-08-30 19:48     ` Taylor Simpson
2020-08-30 21:13       ` Richard Henderson
2020-08-30 21:30         ` Taylor Simpson
2020-08-30 23:26           ` Richard Henderson
2020-08-31 17:08             ` Taylor Simpson
2020-08-31 17:29               ` Richard Henderson
2020-08-31 18:14                 ` Taylor Simpson
2020-08-31 19:20                   ` Richard Henderson
2020-08-31 23:10                     ` Taylor Simpson
2020-09-01  2:40                       ` Richard Henderson
2020-09-01  4:17                         ` Taylor Simpson
2020-09-24  2:56                           ` Taylor Simpson
2020-09-24 15:03                             ` Richard Henderson
2020-09-24 17:18                               ` Taylor Simpson
2020-09-24 19:04                                 ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 31/34] Hexagon (target/hexagon) translation Taylor Simpson
2020-08-29  2:49   ` Richard Henderson
2020-08-30 19:37     ` Taylor Simpson
2020-08-30 23:08       ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 32/34] Hexagon (linux-user/hexagon) Linux user emulation Taylor Simpson
2020-08-29  2:59   ` Richard Henderson
2020-08-18 15:50 ` [RFC PATCH v3 33/34] Hexagon (tests/tcg/hexagon) TCG tests Taylor Simpson
2020-08-29  3:05   ` Richard Henderson
2020-09-01  9:57     ` Alessandro Di Federico
2020-08-18 15:50 ` [RFC PATCH v3 34/34] Hexagon build infrastructure Taylor Simpson
2020-08-29  3:19   ` Richard Henderson
2020-09-24  2:35     ` Taylor Simpson
2020-09-25 16:59       ` Philippe Mathieu-Daudé
2020-08-18 16:32 ` [RFC PATCH v3 00/34] Hexagon patch series no-reply
2020-08-29  3:27 ` Richard Henderson
2020-08-30 20:47   ` Taylor Simpson
2020-08-30 23:33     ` Richard Henderson
2020-08-31 17:57       ` Taylor Simpson
2020-08-31 20:43         ` Richard Henderson
2020-08-31 23:48           ` Taylor Simpson
2020-09-07  9:49     ` Rob Landley
2020-09-15  0:41       ` [EXT] " Brian Cain

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