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3 Commits

Author SHA1 Message Date
Ayke van Laethem ec73bd6a26 compiler: optimize runtime.stringToBytes calls 
This optimization makes sure the following pattern doesn't do a heap
allocation (assuming Write doesn't modify the slice):

    var w *machine.UART = ...
    w.Write([]byte("foo"))

As long as Write doesn't modify the slice and LLVM can detect this, a
call to runtime.stringToBytes with the necessary allocation + copy is
avoided.
 2018-10-09 14:18:12 +02:00
Ayke van Laethem 4219652535 compiler: add basic heap-to-stack optimization 2018-10-09 14:14:52 +02:00
Ayke van Laethem 5db43e8d04 compiler: move Optimize() function to a separate file 
In the future, there will be more optimizations. Let's keep them in a
separate file for separation of concerns.
 2018-10-06 19:57:41 +02:00