[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH 0/4] tcg/optimize: fixes and improvements
|
From: |
Paolo Bonzini |
|
Subject: |
Re: [Qemu-devel] [PATCH 0/4] tcg/optimize: fixes and improvements |
|
Date: |
Mon, 09 Sep 2013 19:14:29 +0200 |
|
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8 |
Il 09/09/2013 19:04, Aurelien Jarno ha scritto:
> I have just checked, and it does indeed work for a few cases involving
> constants. That said, it doesn't change the resulting TCG code, as these
> cases were already handled by some other optimizations.
>
> That let me ask a question, about why the bit propagation has been added
> in the middle of other optimizations, and not for example immediately
> after swapping commutative ops or just before the constant folding.
I think it was just an artifact of /me rebasing the patch after other
optimizations were introduced.
Paolo
- [Qemu-devel] [PATCH 0/4] tcg/optimize: fixes and improvements, Aurelien Jarno, 2013/09/03
- [Qemu-devel] [PATCH 2/4] tcg/optimize: fix known-zero bits for right shift ops, Aurelien Jarno, 2013/09/03
- [Qemu-devel] [PATCH 4/4] tcg/optimize: add known-zero bits compute for load ops, Aurelien Jarno, 2013/09/03
- [Qemu-devel] [PATCH 1/4] tcg/optimize: fix know-zero bits optimization, Aurelien Jarno, 2013/09/03
- [Qemu-devel] [PATCH 3/4] tcg/optimize: improve known-zero bits for 32-bit ops, Aurelien Jarno, 2013/09/03
- Re: [Qemu-devel] [PATCH 0/4] tcg/optimize: fixes and improvements, Paolo Bonzini, 2013/09/03
- Re: [Qemu-devel] [PATCH 0/4] tcg/optimize: fixes and improvements, Richard Henderson, 2013/09/03