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Sensors 2012, 12(4), 4466-4478; doi:10.3390/s120404466

An Advanced Compiler Designed for a VLIW DSP for Sensors-Based Systems

1,*  and 2
1 School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China 2 Institute of Microelectronics, Tsinghua University, Beijing 100084, China
* Author to whom correspondence should be addressed.
Received: 14 March 2012 / Revised: 29 March 2012 / Accepted: 29 March 2012 / Published: 2 April 2012
(This article belongs to the Special Issue Microprocessors and System-on-Chip)
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The VLIW architecture can be exploited to greatly enhance instruction level parallelism, thus it can provide computation power and energy efficiency advantages, which satisfies the requirements of future sensor-based systems. However, as VLIW codes are mainly compiled statically, the performance of a VLIW processor is dominated by the behavior of its compiler. In this paper, we present an advanced compiler designed for a VLIW DSP named Magnolia, which will be used in sensor-based systems. This compiler is based on the Open64 compiler. We have implemented several advanced optimization techniques in the compiler, and fulfilled the O3 level optimization. Benchmarks from the DSPstone test suite are used to verify the compiler. Results show that the code generated by our compiler can make the performance of Magnolia match that of the current state-of-the-art DSP processors.
Keywords: compilers; optimization; VLIW DSP; sensor-based systems compilers; optimization; VLIW DSP; sensor-based systems
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Yang, X.; He, H. An Advanced Compiler Designed for a VLIW DSP for Sensors-Based Systems. Sensors 2012, 12, 4466-4478.

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