Re: [PATCH 6/9] powerpc32: optimise a few instructions in csum_partial()

2016-02-29 Thread Christophe Leroy
Le 23/10/2015 05:30, Scott Wood a écrit : On Tue, 2015-09-22 at 16:34 +0200, Christophe Leroy wrote: r5 does contain the value to be updated, so lets use r5 all way long for that. It makes the code more readable. To avoid confusion, it is better to use adde instead of addc The first addition

Re: [PATCH 6/9] powerpc32: optimise a few instructions in csum_partial()

2015-10-22 Thread Scott Wood
On Tue, 2015-09-22 at 16:34 +0200, Christophe Leroy wrote: > r5 does contain the value to be updated, so lets use r5 all way long > for that. It makes the code more readable. > > To avoid confusion, it is better to use adde instead of addc > > The first addition is useless. Its only purpose is to

[PATCH 6/9] powerpc32: optimise a few instructions in csum_partial()

2015-09-22 Thread Christophe Leroy
r5 does contain the value to be updated, so lets use r5 all way long for that. It makes the code more readable. To avoid confusion, it is better to use adde instead of addc The first addition is useless. Its only purpose is to clear carry. As r4 is a signed int that is always positive, this can b