[LoopUnrollRuntime] Remove strict assert about VMap requirement
When unrolling under multiple exits which is under off-by-default option,
the assert that checks for VMap entry in loop exit values is too strong.
(assert if VMap entry did not exist, the value should be a
constant). However, values derived from
constants or from values outside loop, does not have a VMap entry too.
Removed the assert and added a testcase showcasing the property for
non-constant values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307542 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed