9.10.6 Low-level (LLDS -> LLDS) optimization options
These optimizations are transformations that are applied to our
low-level intermediate code before emitting C code.
- Disable optimization of common data structures.
- Disable optimization of common subsequences in layout structures.
- Disable the low-level optimization passes.
- Disable local peephole optimizations.
- Disable elimination of jumps to jumps.
- Disable elimination of jumps to ordinary code.
- Disable the optimization of tailcalls.
- Convert nondet calls into tail calls whenever possible, even
when this requires a runtime check. This option tries to
minimize stack consumption, possibly at the expense of speed.
- Disable the transformation to use local variables in C code
blocks wherever possible.
- Disable elimination of dead labels and code.
- Enable elimination of duplicate code within procedures.
- Enable elimination of duplicate procedures.
- Disable stack frame optimizations.
- Disable branch delay slot optimizations.
- Optimize away assignments to locations that already hold the assigned value.
- Iterate most optimizations at most n times (default: 3).
- Attempt to compress the layout structures used by the debugger
only as long as the arrays involved have at most n elements