Saleem Abdulrasool e1aa782bd0 CodeGen: further loosen -O0 CG for WoA division ...

Generate the slowest possible codepath for noopt CodeGen.  Even trying to be
clever with the negated jump can cause out-of-range jumps.  Use a wide branch
instead. Although the code is modelled simplistically, the later optimizations
would recombine the branching into `cbz` if possible.  This re-enables the
previous optimization as well as hopefully gives us working code in all cases.

Addresses PR30356!

llvm-svn: 285649

2016-10-31 22:12:37 +00:00

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