Color Flipping

Silva, Felipe L.; Luna, Marcelo F.; Attrot, Wesley

doi:10.1007/978-3-319-24012-1_7

Cited by 1 publication

(2 citation statements)

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“…Color flipping [13] is a strategy to minimize the spill code insertion in graph coloring based register allocators. When a vertex v i is chosen to be spilled, the color flipping is activated to try rearranging the colors in the graph in an way that one color turns available to v i .…”

Section: Color Flippingmentioning

confidence: 99%

“…In this paper we evaluate the energy consumption of our novel spill code minimization technique called Color Flipping [13] in comparison with the classical Briggs' register allocator. Firstly, we implemented the Briggs' register allocator in the LLVM open-source compiler [14] and evaluated energy consumption of the SPEC CPU 2006 benchmarks in an ARM Cortex-A9 using a modified gem5 simulator [15] in combination with the McPAT framework [16].…”

Section: Introductionmentioning

confidence: 99%

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Decreasing Spill Code to Decrease Energy Consumption

Luna

Silva

Attrot

2015

2015 Brazilian Symposium on Computing Systems Engineering (SBESC)

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Due to the power constraints of the current semiconductor technology, energy consumption has become an important factor for computer systems. Reducing energy consumption can mean more battery life for mobile devices or reduction of financial costs for data centers. One of the energy bottlenecks of computer systems is the information traffic between the processor and memory hierarchy. In this paper we evaluate the energy reduction of our new spill code minimization technique called color flipping in comparison with classical approaches. We implemented the Briggs' register allocator in the LLVM compiler framework with and without color flipping strategy and we ran some SPEC CPU 2006 benchmarks in a modified gem5 simulator for Cortex-A9. Then the energy consumption was estimated using the McPAT framework. Experimental results showed that our technique can reduce about 1% of the energy consumption of integer programs.

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Section: Color Flippingmentioning

confidence: 99%