Bill Wendling 1c1dacdd42 Implement fast-isel conversion of a branch instruction that's branching on an
overflow/carry from the "arithmetic with overflow" intrinsics. It searches the
machine basic block from bottom to top to find the SETO/SETC instruction that is
its conditional. If an instruction modifies EFLAGS before it reaches the
SETO/SETC instruction, then it defaults to the normal instruction emission.

llvm-svn: 60807
2008-12-09 23:19:12 +00:00
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