Török Edvin 6e52ce67c7 Improve bytecode load time and optimization (bb #2278). ...

Avoid quadratic load times: run module passes at the end, and run
rtcheck inserter at the end also.

Also optimize away some simple situations that the compiler couldn't,
like result of __is_bigendian() which is a constant at load time (but not at
compile time).
If we would have run LLVM's -O1 optimizers these would have been
optimized already, but we don't do that for 2 reasons:
 - optimizations may introduce new bugs
 - may take a bit longer time
Just run some simple transforms, and some custom optimizations for the bigendian
case.

2010-09-21 20:24:06 +03:00

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