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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, 17 Jun 2013 08:56:05 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6 |
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
- Re: [Qemu-devel] [PATCH 0/5] tcg-arm: Runtime detection of architecture,
Richard Henderson <=