IBM XL C/C++ Compilers: Difference between revisions

Revision as of 11:32, 24 October 2020

Revision as of 11:37, 24 October 2020

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The particular optimizations performed for any given compilation depend upon the optimization level chosen under option control (O2 to O5) along with any other optimization-related options, such as those for interprocedural analysis or [[loop optimization]]s.

A 60-day installable evaluation version is available for download for the [[AIX]],<ref>[https://www.ibm.com/products/xl-cpp-aix-compiler-power/ XL C/C++ for AIX]</ref> Linux on Power and <ref>[https://www.ibm.com/us-en/marketplaceproducts/xl-cpp-linux-compiler-power XL C/C++ for Linux on Power]</ref>.

In June 2016, IBM introduced XL C/C++ for Linux Community Edition which is free of charge. It can be downloaded.<ref>[https://www.ibm.com/us-en/marketplaceproducts/xl-cpp-linux-compiler-power XL C/C++ for Linux Community Edition]</ref>

The XL compilers on AIX have delivered leadership scores in the [[Standard Performance Evaluation Corporation|SPEC]] CPU2000 and CPU2006 benchmarks, in combination with specific IBM POWER system processor announcements, for example SPEC CPU2006 Floating Point<ref>[http://www.spec.org/cpu2006/results/res2010q2/#SPECfp|SPEC CPU2006 Floating Point]</ref> score of 71.5 in May 2010 and <ref>[http://www.spec.org/cpu2000/results/res2006q3/ SPEC CPU2000 Floating Point]</ref> score of 4051 in August 2006.