There are a lot of tests that do not depend upon the IR output
for validation, relying instead on the debug output. For these
tests we can add the -disable-output command line argument.
I've only fixed up the tests where I was able to use a simple sed script
to replace the text. Even after this patch lands, there are still over
50 tests that need updating in X86/CostModel!
Many tests that were in test/Analysis/CostModel were actually
loop vectoriser tests. I've moved them as follows:
Analysis/CostModel/X86 -> Transforms/LoopVectorize/X86/CostModel
Analysis/CostModel/AArch64/arith-fp-frem.ll ->
Transforms/LoopVectorize/AArch64/arith-fp-frem-costs.ll
