From: Ajit Agarwal <aagarwa1@linux.ibm.com>
To: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Cc: gcc-patches@gcc.gnu.org, Vineet Gupta <vineetg@rivosinc.com>,
Jeff Law <jeffreyalaw@gmail.com>,
Richard Biener <richard.guenther@gmail.com>,
Segher Boessenkool <segher@kernel.crashing.org>,
Peter Bergner <bergner@linux.ibm.com>,
gnu-toolchain <gnu-toolchain@rivosinc.com>
Subject: Re: [PATCH v9 4/4] ree: Improve ree pass for rs6000 target using defined ABI interfaces
Date: Tue, 24 Oct 2023 13:06:22 +0530 [thread overview]
Message-ID: <8da41716-1111-4550-95dd-de41a402101e@linux.ibm.com> (raw)
In-Reply-To: <20231023161027.362c626b@nbbrfq.loc>
Hello Bernhard:
On 23/10/23 7:40 pm, Bernhard Reutner-Fischer wrote:
> On Mon, 23 Oct 2023 12:16:18 +0530
> Ajit Agarwal <aagarwa1@linux.ibm.com> wrote:
>
>> Hello All:
>>
>> Addressed below review comments in the version 11 of the patch.
>> Please review and please let me know if its ok for trunk.
>
> s/satisified/satisfied/
>
I will fix this.
>>> As said, I don't see why the below was not cleaned up before the V1 submission.
>>> Iff it breaks when manually CSEing, I'm curious why?
>
> The function below looks identical in v12 of the patch.
> Why didn't you use common subexpressions?
> ba
Using CSE here breaks aarch64 regressions hence I have reverted it back
not to use CSE,
>>>
>>>>> +/* Return TRUE if reg source operand of zero_extend is argument registers
>>>>> + and not return registers and source and destination operand are same
>>>>> + and mode of source and destination operand are not same. */
>>>>> +
>>>>> +static bool
>>>>> +abi_extension_candidate_p (rtx_insn *insn)
>>>>> +{
>>>>> + rtx set = single_set (insn);
>>>>> + machine_mode dst_mode = GET_MODE (SET_DEST (set));
>>>>> + rtx orig_src = XEXP (SET_SRC (set), 0);
>>>>> +
>>>>> + if (!FUNCTION_ARG_REGNO_P (REGNO (orig_src))
>>>>> + || abi_extension_candidate_return_reg_p (/*insn,*/ REGNO (orig_src)))
>>>>> + return false;
>>>>> +
>>>>> + /* Mode of destination and source should be different. */
>>>>> + if (dst_mode == GET_MODE (orig_src))
>>>>> + return false;
>>>>> +
>>>>> + machine_mode mode = GET_MODE (XEXP (SET_SRC (set), 0));
>>>>> + bool promote_p = abi_target_promote_function_mode (mode);
>>>>> +
>>>>> + /* REGNO of source and destination should be same if not
>>>>> + promoted. */
>>>>> + if (!promote_p && REGNO (SET_DEST (set)) != REGNO (orig_src))
>>>>> + return false;
>>>>> +
>>>>> + return true;
>>>>> +}
>>>>> +
>
>
>>>
>>> As said, please also rephrase the above (and everything else if it obviously looks akin the above).
>
> thanks
next prev parent reply other threads:[~2023-10-24 7:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-20 6:50 Ajit Agarwal
2023-10-20 23:56 ` Vineet Gupta
2023-10-21 10:14 ` Ajit Agarwal
2023-10-21 19:26 ` rep.dot.nop
2023-10-23 6:46 ` Ajit Agarwal
2023-10-23 14:10 ` Bernhard Reutner-Fischer
2023-10-24 7:36 ` Ajit Agarwal [this message]
2023-10-24 20:36 ` rep.dot.nop
2023-10-24 20:49 ` Vineet Gupta
2023-10-25 11:11 ` Ajit Agarwal
2023-10-27 17:16 ` Bernhard Reutner-Fischer
2023-10-27 22:39 ` Vineet Gupta
2023-10-28 10:26 ` Ajit Agarwal
2023-10-29 10:49 ` Ajit Agarwal
2023-10-28 10:25 ` Ajit Agarwal
2023-10-29 10:48 ` Ajit Agarwal
2023-10-25 11:08 ` Ajit Agarwal
2023-10-23 18:32 ` Vineet Gupta
2023-10-24 7:40 ` Ajit Agarwal
2023-10-24 9:36 ` Ajit Agarwal
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