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2006 Jun 01
1
[LLVMdev] Live ranges of physical registers
Dear LLVM guys,
I am coding a liveness analysis algorithm, and I found this comment
on LiveVariables.cpp:
Line 00195 - http://llvm.org/doxygen/LiveVariables_8cpp-source.html :
// PhysRegInfo - Keep track of which instruction was the last use of a
// physical register. This is a purely local property, because all
physical
// register references as presumed dead across basic blocks.