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authorMagnus Lång <[email protected]>2016-05-28 20:22:34 +0200
committerMagnus Lång <[email protected]>2016-09-02 15:04:45 +0200
commit85bd166647e7f260fd665eb44da9151c0d88f208 (patch)
tree84878ab624fcc22246bae89b75a6857415508539 /otp_build
parentc2f8b61ca3682281752fa0984699214dfcbf7ccd (diff)
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hipe: Add hipe_regalloc_prepass
hipe_regalloc_prepass speeds up register allocation by spilling any temp that is live over a call (which clobbers all register). In order to detect these, a new function was added to the target interface; defines_all_alloc/1, that takes an instruction and returns a boolean.
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