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Re: [Qemu-devel] [PATCH 0/5] tcg-arm: Runtime detection of architecture
From: |
Richard Henderson |
Subject: |
Re: [Qemu-devel] [PATCH 0/5] tcg-arm: Runtime detection of architecture |
Date: |
Mon, 24 Jun 2013 20:44:02 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130612 Thunderbird/17.0.6 |
Ping 3.
On 06/17/2013 08:56 AM, Richard Henderson wrote:
> Ping.
>
> On 06/10/2013 11:42 AM, Richard Henderson wrote:
>> Ping.
>>
>>
>> On 06/06/2013 11:05 AM, Richard Henderson wrote:
>>> Two prepatory generic tcg patches, to allow non-constant values for
>>> the various TCG_TARGET_HAS_foo macros.
>>>
>>> When in patch 3 this gets used, the code inlined in the translators
>>> will be able to check the relevant variable and emit either division
>>> opcode or the call to the division subroutine.
>>>
>>> Perhaps more valuable is being able to generate armv7 insns when
>>> running on e.g. an cortex-a15, even when the OS distribution is
>>> built for a more generic armv5.
>>>
>>> Tested on an a15, and with various hacks to force each of the unused
>>> code paths to be used.
>>>
>>>
>>> r~
>>>
>>>
>>> Richard Henderson (5):
>>> tcg: Allow non-constant control macros
>>> tcg: Simplify logic using TCG_OPF_NOT_PRESENT
>>> tcg-arm: Make use of conditional availability of opcodes for divide
>>> tcg-arm: Simplify logic in detecting the ARM ISA in use
>>> tcg-arm: Use AT_PLATFORM to detect the host ISA
>>>
>>> tcg/arm/tcg-target.c | 82
>>> +++++++++++++++++++++++++++-------------------------
>>> tcg/arm/tcg-target.h | 14 +++++----
>>> tcg/tcg-opc.h | 28 ++++++++++--------
>>> tcg/tcg.c | 4 +--
>>> tcg/tcg.h | 3 +-
>>> 5 files changed, 69 insertions(+), 62 deletions(-)
>>>
>>
>
- [Qemu-devel] [PATCH 0/5] tcg-arm: Runtime detection of architecture, Richard Henderson, 2013/06/06
- [Qemu-devel] [PATCH 1/5] tcg: Allow non-constant control macros, Richard Henderson, 2013/06/06
- [Qemu-devel] [PATCH 2/5] tcg: Simplify logic using TCG_OPF_NOT_PRESENT, Richard Henderson, 2013/06/06
- [Qemu-devel] [PATCH 4/5] tcg-arm: Simplify logic in detecting the ARM ISA in use, Richard Henderson, 2013/06/06
- [Qemu-devel] [PATCH 3/5] tcg-arm: Make use of conditional availability of opcodes for divide, Richard Henderson, 2013/06/06
- [Qemu-devel] [PATCH 5/5] tcg-arm: Use AT_PLATFORM to detect the host ISA, Richard Henderson, 2013/06/06
- Re: [Qemu-devel] [PATCH 0/5] tcg-arm: Runtime detection of architecture, Richard Henderson, 2013/06/10