2 Commits

Author	SHA1	Message	Date
Heiko Carstens	04efc3be76	[S390] convert/optimize csum_fold() to C ... In the meantime gcc generates better code than the old inline assemblies do. Original inline assembly results in: lr %r1,%r2 sr %r3,%r3 lr %r2,%r1 srdl %r2,16 alr %r2,%r3 alr %r1,%r2 srl %r1,16 xilf %r1,65535 llghr %r2,%r1 br %r14 Out of the C code gcc generates this: rll %r1,%r2,16 ar %r1,%r2 srl %r1,16 xilf %r1,65535 llghr %r2,%r1 br %r14 In addition we don't have any static register allocations anymore and gcc is free to shuffle instructions around for better pipeline usage. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>	2009-09-11 10:29:43 +02:00
Martin Schwidefsky	c6557e7f2b	[S390] move include/asm-s390 to arch/s390/include/asm ... Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>	2008-08-01 20:42:05 +02:00