Messages in this thread | | | From | David Laight <> | Subject | RE: [PATCH v3 2/2] powerpc: add support for csum_add() | Date | Tue, 26 May 2015 13:57:32 +0000 |
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From: Scott Wood ... > > I'd also have thought that the 64bit C version above would be generally 'good'. > > It doesn't generate the addc/addze sequence. At least with GCC 4.8.2, > it does something like: > > mr tmp0, csum > li tmp1, 0 > li tmp2, 0 > addc tmp3, addend, tmp0 > adde csum, tmp2, tmp1 > add csum, csum, tmp3
I was thinking of all 64bit targets, not 32bit ones.
David
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