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Re: [PATCH v4 10/27] tcg/s390x: Remove DISTINCT_OPERANDS facility check
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From: |
Ilya Leoshkevich |
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Subject: |
Re: [PATCH v4 10/27] tcg/s390x: Remove DISTINCT_OPERANDS facility check |
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Date: |
Mon, 12 Dec 2022 23:29:31 +0100 |
On Thu, Dec 08, 2022 at 08:05:13PM -0600, Richard Henderson wrote:
> The distinct-operands facility is bundled into facility 45,
> along with load-on-condition. We are checking this at startup.
> Remove the a0 == a1 checks for 64-bit sub, and, or, xor, as there
> is no space savings for avoiding the distinct-operands insn.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
- Re: [PATCH v4 05/27] tcg/s390x: Check for long-displacement facility at startup, (continued)
- [PATCH v4 06/27] tcg/s390x: Check for extended-immediate facility at startup, Richard Henderson, 2022/12/08
- [PATCH v4 08/27] tcg/s390x: Check for load-on-condition facility at startup, Richard Henderson, 2022/12/08
- [PATCH v4 07/27] tcg/s390x: Check for general-instruction-extension facility at startup, Richard Henderson, 2022/12/08
- [PATCH v4 09/27] tcg/s390x: Remove FAST_BCR_SER facility check, Richard Henderson, 2022/12/08
- [PATCH v4 10/27] tcg/s390x: Remove DISTINCT_OPERANDS facility check, Richard Henderson, 2022/12/08
- Re: [PATCH v4 10/27] tcg/s390x: Remove DISTINCT_OPERANDS facility check,
Ilya Leoshkevich <=
- [PATCH v4 11/27] tcg/s390x: Use LARL+AGHI for odd addresses, Richard Henderson, 2022/12/08
- [PATCH v4 12/27] tcg/s390x: Distinguish RRF-a and RRF-c formats, Richard Henderson, 2022/12/08
- [PATCH v4 13/27] tcg/s390x: Distinguish RIE formats, Richard Henderson, 2022/12/08
- [PATCH v4 16/27] tcg/s390x: Issue XILF directly for xor_i32, Richard Henderson, 2022/12/08
- [PATCH v4 15/27] tcg/s390x: Support MIE2 MGRK instruction, Richard Henderson, 2022/12/08
- [PATCH v4 17/27] tcg/s390x: Tighten constraints for or_i64 and xor_i64, Richard Henderson, 2022/12/08
- [PATCH v4 18/27] tcg/s390x: Tighten constraints for and_i64, Richard Henderson, 2022/12/08