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author	Paolo Bonzini <pbonzini@redhat.com>
	Thu, 20 Jun 2013 14:19:32 +0000 (16:19 +0200)
committer	Paolo Bonzini <pbonzini@redhat.com>
	Tue, 2 Jul 2013 06:17:01 +0000 (08:17 +0200)
commit	6046c620866f6f5c53eaece9f4ad8d44a12e1185
tree	54fcfbdf8f15d62f5e2c8ac9d2f43f80222ee9b7	tree
parent	1acd5a373905ddb28957842256a038956941f332	commit \| diff

int128: optimize and add test cases

For add, the carry only requires checking one of the arguments.
For sub and neg, we can similarly optimize computation of the
carry.

For ge, we can just do lexicographic order.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

include/qemu/int128.h		diff \| blob \| blame \| history
tests/Makefile		diff \| blob \| blame \| history
tests/test-int128.c	[new file with mode: 0644]	blob

Qemu copy for testing

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