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10201
2015 Apr 24
2
[LLVMdev] RFC: implicit null checks in llvm
I don't think we can expose the memory operations directly from a
semantic, theoretical point of view. Whether practically we can do
this or not is a different question.
Does LLVM do optimizations like these at the machine instruction
level?
if (condition)
T = *X // normal load, condition guards against null
EH_LABEL // clobbers all
U = *X // implicit null check, branches