When I read into the new documentation of composer 2015, there is a mention of a new clang-compatible compiler, named icl/icl++. However I cannot find it anywhere in the /opt/intel directory, either by trying to invoke it after sourcing the compilervar.sh script or searching the directory manually. I did a command-line only installation of the Parallel Studio 2015 Composer Edition for Mac OS X.
A little search I found that it was mentioned in the beta release notes but in the official release notes. Is this new feature removed and they did not make into the final product?
This new icl / icl++ compiler has been released in a separate product, named "Intel® INDE Build Edition for OS X". You can read more info there: https://software.intel.com/en-us/inde/build-edition-for-osx
It was indeed a part of Composer XE 2015 beta, but then separated into the aformentioned product.