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From: Richard Henderson <richard.henderson@linaro.org>
To: Anton Johansson <anjo@rev.ng>, qemu-devel@nongnu.org
Cc: ale@rev.ng, ltaylorsimpson@gmail.com, bcain@quicinc.com,
	philmd@linaro.org, alex.bennee@linaro.org
Subject: Re: [RFC PATCH v1 28/43] helper-to-tcg: Introduce TcgType.h
Date: Fri, 22 Nov 2024 12:26:02 -0600	[thread overview]
Message-ID: <974f626c-4f51-481e-8e7c-93e8624b1424@linaro.org> (raw)
In-Reply-To: <20241121014947.18666-29-anjo@rev.ng>

On 11/20/24 19:49, Anton Johansson via wrote:
> Adds a struct representing everything a LLVM value might map to in TCG,
> this includes:
> 
>    * TCGv (IrValue);
>    * TCGv_ptr (IrPtr);
>    * TCGv_env (IrEnv);
>    * TCGLabel (IrLabel);
>    * tcg_constant_*() (IrConst);
>    * 123123ull (IrImmediate);
>    * intptr_t gvec_vector (IrPtrToOffset).

Why would you map TCGv (the TARGET_LONG_BITS alias) rather than the base TCGv_i32 and 
TCGv_i64 types?  This seems like it would be more natural within LLVM, and take advantage 
of whatever optimization that you're allowing LLVM to do.


r~



  reply	other threads:[~2024-11-22 18:26 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-21  1:49 [RFC PATCH v1 00/43] Introduce helper-to-tcg Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 01/43] Add option to enable/disable helper-to-tcg Anton Johansson via
2024-11-22 17:30   ` Richard Henderson
2024-11-22 18:23     ` Paolo Bonzini
2024-12-03 19:05       ` Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 02/43] accel/tcg: Add bitreverse and funnel-shift runtime helper functions Anton Johansson via
2024-11-22 17:35   ` Richard Henderson
2024-12-03 17:50     ` Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 03/43] accel/tcg: Add gvec size changing operations Anton Johansson via
2024-11-22 17:50   ` Richard Henderson
2024-12-03 18:08     ` Anton Johansson via
2024-12-03 18:57       ` Richard Henderson
2024-12-03 20:15         ` Anton Johansson via
2024-12-03 21:14           ` Richard Henderson
2024-11-21  1:49 ` [RFC PATCH v1 04/43] tcg: Add gvec functions for creating consant vectors Anton Johansson via
2024-11-22 18:00   ` Richard Henderson
2024-12-03 18:19     ` Anton Johansson via
2024-12-03 19:03       ` Richard Henderson
2024-11-21  1:49 ` [RFC PATCH v1 05/43] tcg: Add helper function dispatcher and hook tcg_gen_callN Anton Johansson via
2024-11-22 18:04   ` Richard Henderson
2024-12-03 18:45     ` Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 06/43] tcg: Introduce tcg-global-mappings Anton Johansson via
2024-11-22 19:14   ` Richard Henderson
2024-11-21  1:49 ` [RFC PATCH v1 07/43] tcg: Increase maximum TB size and maximum temporaries Anton Johansson via
2024-11-22 18:11   ` Richard Henderson
2024-11-21  1:49 ` [RFC PATCH v1 08/43] include/helper-to-tcg: Introduce annotate.h Anton Johansson via
2024-11-22 18:12   ` Richard Henderson
2024-11-25 11:27     ` Philippe Mathieu-Daudé
2024-12-03 19:00       ` Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 09/43] helper-to-tcg: Introduce get-llvm-ir.py Anton Johansson via
2024-11-22 18:14   ` Richard Henderson
2024-12-03 18:49     ` Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 10/43] helper-to-tcg: Add meson.build Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 11/43] helper-to-tcg: Introduce llvm-compat Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 12/43] helper-to-tcg: Introduce custom LLVM pipeline Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 13/43] helper-to-tcg: Introduce Error.h Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 14/43] helper-to-tcg: Introduce PrepareForOptPass Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 15/43] helper-to-tcg: PrepareForOptPass, map annotations Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 16/43] helper-to-tcg: PrepareForOptPass, Cull unused functions Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 17/43] helper-to-tcg: PrepareForOptPass, undef llvm.returnaddress Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 18/43] helper-to-tcg: PrepareForOptPass, Remove noinline attribute Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 19/43] helper-to-tcg: Pipeline, run optimization pass Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 20/43] helper-to-tcg: Introduce pseudo instructions Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 21/43] helper-to-tcg: Introduce PrepareForTcgPass Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 22/43] helper-to-tcg: PrepareForTcgPass, remove functions w. cycles Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 23/43] helper-to-tcg: PrepareForTcgPass, demote phi nodes Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 24/43] helper-to-tcg: PrepareForTcgPass, map TCG globals Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 25/43] helper-to-tcg: PrepareForTcgPass, transform GEPs Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 26/43] helper-to-tcg: PrepareForTcgPass, canonicalize IR Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 27/43] helper-to-tcg: PrepareForTcgPass, identity map trivial expressions Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 28/43] helper-to-tcg: Introduce TcgType.h Anton Johansson via
2024-11-22 18:26   ` Richard Henderson [this message]
2024-12-03 18:50     ` Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 29/43] helper-to-tcg: Introduce TCG register allocation Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 30/43] helper-to-tcg: TcgGenPass, introduce TcgEmit.[cpp|h] Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 31/43] helper-to-tcg: Introduce TcgGenPass Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 32/43] helper-to-tcg: Add README Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 33/43] helper-to-tcg: Add end-to-end tests Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 34/43] target/hexagon: Add get_tb_mmu_index() Anton Johansson via
2024-11-22 18:34   ` Richard Henderson
2024-12-03 18:50     ` Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 35/43] target/hexagon: Use argparse in all python scripts Anton Johansson via
2024-12-05 15:23   ` Brian Cain
2024-11-21  1:49 ` [RFC PATCH v1 36/43] target/hexagon: Add temporary vector storage Anton Johansson via
2024-11-22 18:35   ` Richard Henderson
2024-12-03 18:56     ` Anton Johansson via
2024-12-03 20:28       ` Brian Cain
2024-12-04  0:37         ` ltaylorsimpson
2024-11-21  1:49 ` [RFC PATCH v1 37/43] target/hexagon: Make HVX vector args. restrict * Anton Johansson via
2024-11-25 11:36   ` Philippe Mathieu-Daudé
2024-11-25 12:00     ` Paolo Bonzini
2024-12-03 18:57       ` Anton Johansson via
2024-12-03 18:58         ` Brian Cain
2024-11-21  1:49 ` [RFC PATCH v1 38/43] target/hexagon: Use cpu_mapping to map env -> TCG Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 39/43] target/hexagon: Keep gen_slotval/check_noshuf for helper-to-tcg Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 40/43] target/hexagon: Emit annotations for helpers Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 41/43] target/hexagon: Manually call generated HVX instructions Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 42/43] target/hexagon: Only translate w. idef-parser if helper-to-tcg failed Anton Johansson via
2024-11-21  1:49 ` [RFC PATCH v1 43/43] target/hexagon: Use helper-to-tcg Anton Johansson via
2024-11-25 11:34 ` [RFC PATCH v1 00/43] Introduce helper-to-tcg Philippe Mathieu-Daudé
2024-12-03 18:58   ` Anton Johansson via

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