Nick Lewycky 18f50b2637 Xor'ing both sides of icmp by sign-bit is equivalent to swapping signedness of ... the predicate. Also, make this optz'n apply in more cases where it's safe to do so. llvm-svn: 54876		2008-08-17 07:34:14 +00:00
clang	various updates to match r54873 on mainline.	2008-08-17 07:19:51 +00:00
llvm	Xor'ing both sides of icmp by sign-bit is equivalent to swapping signedness of	2008-08-17 07:34:14 +00:00