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Product category: Design and Development Software
News Release from: Green Hills Software | Subject: Multi for PowerPC
Edited by the Electronicstalk Editorial Team on 15 October 2002

Compiler produces faster Power PC code

Green Hills Software has a new PowerPC compiler that delivers the highest performance ever for compute-intensive applications, according to scores submitted to EEMBC

Green Hills Software has a new PowerPC compiler that delivers the highest performance ever for compute-intensive applications, according to scores submitted to EEMBC, the embedded microprocessor Benchmark Consortium, and certified by EEMBC Certification Labs (ECL). The new C/C++/Ada95 optimising compiler from Green Hills is already in use, and has been selected by Motorola for use in benchmarking its PowerPC ISA-based MPC7455 processor on the EEMBC Telecom test suite.

The EEMBC Telecom benchmark suite is made up of excerpts from telecomms application code submitted by developers and collected and validated by EEMBC.

It measures microprocessor performance on code that is commonly found in demanding telecommunications applications.

The new compiler achieved an EEMBC Telecom Mark of 28.3 on "out-of-the-box" standard C code and a Telecom Mark of 121.6 on AltiVec-optimised "full-fury" code on a 1.0GHz MPC7455 processor.

On the popular dhrystone benchmark, the compiler achieved 2583 VAX MIPS on a 1.0GHz MPC7455 - again top in the industry.

"The Green Hills Software compiler generated the fastest code on the EEMBC Telecommunications suite of benchmarks in our previous certification of the 1-GHz MPC7455 processor", said Chuck Corley, director of applications engineering for Motorola's Computing Platform Division.

"We were pleased to see that the Green Hills compiler provided superior performance on our new AltiVec-enabled, optimised version of this suite as well".

Additional benchmark testing has been performed using a Mercury Computer Systems RACE++ PowerPC 7410-based system, on benchmark code collected from Green Hills Software and Mercury Computer Systems customers.

These benchmarks indicate that the new Green Hills Software C/C++ compiler achieves top scores for the PowerPC 7410.

Mercury has selected Green Hills Software's C/C++ compiler to be part of its Extended Developer's Tool Kit, which Mercury offers to its customers developing demanding signal and image processing applications.

The Green Hills Software compiler accepts C, C++, EC++, and Ada95 source code, and generates optimised object code for over 20 models of PowerPC ISA-based processors, including Motorola's 603e, 850/860, 8240/8245, 8250/8260, the newly announced 8540 and 8560, 740/745, 750/755, 7400/7410, 7440/7445, 7450/7455, and IBM's 403, 405 and 440.

Optimisations are both global and target specific.

These compilers employ some of the latest global and interprocedural optimisation techniques, drawing from a wealth of real world optimisation experience and the latest academic and industrial research.

Target-specific optimisations take the individual architecture's instruction set, pipeline characteristics, register file, addressing modes, and cache characteristics into account to produce code that is highly tuned for the user's application.

Together, these optimisations deliver the best performance available for C/C++/EC++/Ada applications running on PowerPC processors.

The C/C++/EC++/Ada95 compiler is part of the Multi integrated development environment (IDE), which provides all the development tools needed for embedded applications.

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