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From: Richard Henderson <richard.henderson@linaro.org>
To: Stefan Weil <sw@weilnetz.de>, Peter Maydell <peter.maydell@linaro.org>
Cc: QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [PATCH v3 02/24] tcg/tci: Remove TCG_TARGET_HAS_* ifdefs
Date: Fri, 29 Jan 2021 22:55:59 -1000	[thread overview]
Message-ID: <dfaa96eb-df71-d8f9-5a40-91648d46c46f@linaro.org> (raw)
In-Reply-To: <a0bea30f-4477-14a3-2576-2e3d549e456e@weilnetz.de>

On 1/29/21 9:15 PM, Stefan Weil wrote:
> If someone decides to use TCG_TARGET_HAS_div2_i64 instead of
> TCG_TARGET_HAS_div_i64 with TCI, that lines (in addition to the implementation
> of the opcodes) would be needed again.

How can you know if those lines are even correct, when there is no
infrastructure behind them to either produce or consume?

If someone decides to implement div2, they will have to add the whole thing at
once, not build on piece-meal stuff that's been laying around for a decade.


r~




  reply	other threads:[~2021-01-30  8:57 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-29 20:10 [PATCH v3 00/24] tcg: backend constraints cleanup Richard Henderson
2021-01-29 20:10 ` [PATCH v3 01/24] tcg/tci: Drop L and S constraints Richard Henderson
2021-01-29 20:10 ` [PATCH v3 02/24] tcg/tci: Remove TCG_TARGET_HAS_* ifdefs Richard Henderson
2021-01-29 23:16   ` Peter Maydell
2021-01-30  6:47     ` Richard Henderson
2021-01-30  7:15       ` Stefan Weil
2021-01-30  8:55         ` Richard Henderson [this message]
2021-01-29 20:10 ` [PATCH v3 03/24] tcg/i386: Move constraint type check to tcg_target_const_match Richard Henderson
2021-01-29 23:16   ` Peter Maydell
2021-01-29 20:10 ` [PATCH v3 04/24] tcg/i386: Tidy register constraint definitions Richard Henderson
2021-01-29 23:20   ` Peter Maydell
2021-01-30  6:50     ` Richard Henderson
2021-01-29 20:10 ` [PATCH v3 05/24] tcg/i386: Split out target constraints to tcg-target-con-str.h Richard Henderson
2021-01-29 23:23   ` Peter Maydell
2021-01-29 20:10 ` [PATCH v3 06/24] tcg/arm: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 07/24] tcg/aarch64: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 08/24] tcg/ppc: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 09/24] tcg/tci: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 10/24] tcg/mips: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 11/24] tcg/riscv: " Richard Henderson
2021-01-29 23:24   ` Peter Maydell
2021-01-29 20:10 ` [PATCH v3 12/24] tcg/s390: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 13/24] tcg/sparc: " Richard Henderson
2021-01-29 23:27   ` Peter Maydell
2021-01-31 20:03   ` Philippe Mathieu-Daudé
2021-01-29 20:10 ` [PATCH v3 14/24] tcg: Remove TCG_TARGET_CON_STR_H Richard Henderson
2021-01-29 20:10 ` [PATCH v3 15/24] tcg/i386: Split out constraint sets to tcg-target-con-set.h Richard Henderson
2021-01-29 20:10 ` [PATCH v3 16/24] tcg/aarch64: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 17/24] tcg/arm: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 18/24] tcg/mips: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 19/24] tcg/ppc: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 20/24] tcg/riscv: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 21/24] tcg/s390: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 22/24] tcg/sparc: " Richard Henderson
2021-01-29 20:10 ` [PATCH v3 23/24] tcg/tci: " Richard Henderson
2021-01-29 23:30   ` Peter Maydell
2021-01-29 20:10 ` [PATCH v3 24/24] tcg: Remove TCG_TARGET_CON_SET_H Richard Henderson
2021-01-29 20:37 ` [PATCH v3 00/24] tcg: backend constraints cleanup no-reply

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