reported they got some improvement with it and larger loops. Small
loops are an issue for now until unrolling is implemented for DBcc.
- Const jumps are identified in readcpu. I don't want to duplicate code
uselessly. Rather, it's the JIT job to know whether we are doing block
inlining and un-marking those instructions as end-of-block.
- Replace unused fl_compiled with fl_const_jump
- Implement block inlining enabled with USE_INLINING && USE_CHECKSUM_INFO.
However, this is currently disabled as it doesn't give much and exhibits
even more a cache/code generation problem with FPU JIT compiled code.
- Actual checksum values are now integral part of a blockinfo regardless
of USE_CHECKSUM_INFO is set or not. Reduce number of elements in that
structure and speeds up a little calculation of checksum of chained blocks.
- Don't care about show_checksum() for now.
