Simplify the spill weight calculation a bit by bypassing getApproximateInstructionCount() and using LiveInterval::getSize() directly. This changes the computed spill weights, but only by a constant factor in each function. It should not affect how spill weights compare against each other, and so it shouldn't affect code generation. llvm-svn: 125530
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The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
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