[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] TCG native 32->64 concatenation
|
From: |
Blue Swirl |
|
Subject: |
Re: [Qemu-devel] TCG native 32->64 concatenation |
|
Date: |
Sun, 7 Sep 2008 21:15:13 +0300 |
On 9/7/08, Paul Brook <address@hidden> wrote:
> The patch below adds a new concat_i32_i64 TCG op. This allows a pair of
> 32-bit values to be efficiently combined to form a 64-bit value. I've
> converted all the cases I could find to use this, and tested the arm code on
> both 32 and 64-bit hosts.
Sparc's helper_pack64 does the same thing, I used it to reduce
register pressure on i386 for 64 bit stores.