Please see the licenses included in the distribution as well as the Disclaimer and Legal Information section of these release notes for details. Please see the following links for information on this release of the Intel® C++ Compiler 19.1.
Please see Getting Started Guide for Intel C/C++ Compiler with OpenMP offload.
Full documentation for all tool components is available at the oneAPI page.
Online Help format in Microsoft Visual Studio*
New help menu items to link to online getting started documents.
Context sensitive help on F1 is not available
Product samples are now available online at Intel® Software Product Samples and Tutorials
Any issues found should be reported to the oneAPI tools for internal Jira project
For details on issue submission including requesting access to the Jira project, please see Guidelines on Reporting Issues
For general discussions on oneAPI usage, please submit questions to the discussion forum on Inside Blue.
The following features are new or significantly enhanced in this version. For more information on these features, please refer to the documentation.
/Qnextgen compiler option invokes the Early Access ICC NextGen compiler. These options are only available for Windows* or Linux* ICC/ICL/ICPC drivers. This option and functionality is not available for ICC on macOS* X.
The Intel® C++ Compiler 19.1 Technology Preview supports the following features under the /Qstd=c++20 (Windows*) or -std=c++20 (Linux*/OS X*) options:
Intel(R) C++ Compiler is installed with Parallel STL, an implementation of the C++ standard library algorithms with support for execution policies.
To learn more, please refer to article https://software.intel.com/en-us/get-started-with-pstl
Intel® Cilk™ Plus support is removed in 19.1
Microsoft Visual Studio 2013* and Microsoft Visual Studio 2015* support removed
Microsoft Visual Studio 2013* and Microsoft Visual Studio 2015* are not supported with Intel® Compiler 19.1.
Microsoft Windows 7*, Windows Server 2008 R2 SP1*, Windows Server 2012* are not supported
Microsoft Windows 7*, Windows Server 2008 R2 SP1*, Windows Server 2012* are not supported with Intel® C++ Compiler 19.1.
The following compiler options related to Loop Profiler are deprecated and will be removed in future compilers
The predefined macro __INTEL_COMPILER is set to 1901. The compiler version is 19.1. We are looking to change this predefine to 1910 in a future updates and in the 19.1 product release.
unseq and par_unseq policies only have effect with compilers that support '#pragma omp simd' or '#pragma simd. Parallel and vector execution is only supported for a subset of algorithms if random access iterators are provided, while for the rest execution will remain serial. Depending on a compiler, zip_iterator may not work with unseq and par_unseq policies.
When using the /Qcheck-pointers option, the runtime library libchkp.dll must be linked in. When using options like /MD with /Qcheck-pointers, be aware that this dynamic library will be linked in regardless of your settings. See the article at http://intel.ly/1jV0eWD for more information.
There is a limitation of Visual Studio* internal browser that some multi-pane documents do not display correctly, the table of contents appears in the left pane, but the right pane does not display any content.
Workaround: Access the same documentation from the Visual Studio Help menu.
“The "ConformanceMode" parameter is not supported by the "CL" task. Verify the parameter exists on the task, and it is a settable public instance property.”
\Common7\IDE\VC\VCTargets\Platforms\ \PlatformToolsets\Intel C++ Compiler 19.0\Toolset.targets file: “ConformanceMode ="%(ClCompile.ConformanceMode)"”
There is an issue when viewing the Intel Compiler Documentation in Microsoft Edge* browser on Japanese Windows 10 OS. The upper left corner [Content][Index][Search] buttons does not work. When clicking on it, it results in blank screen.
This issue is being investigated. Please use Internet Explorer to view the Intel Compiler Documentation. To set the default browser to Internet Explorer, google search "how to make Internet Explorer default browser on Windows 10".
Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.
Notice revision #20110804
INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL(R) PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS OTHERWISE AGREED IN WRITING BY INTEL, THE INTEL PRODUCTS ARE NOT DESIGNED NOR INTENDED FOR ANY APPLICATION IN WHICH THE FAILURE OF THE INTEL PRODUCT COULD CREATE A SITUATION WHERE PERSONAL INJURY OR DEATH MAY OCCUR.
Intel may make changes to specifications and product descriptions at any time, without notice. Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. The information here is subject to change without notice. Do not finalize a design with this information.
The products described in this document may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.
Copies of documents which have an order number and are referenced in this document, or other Intel literature, may be obtained by calling 1-800-548-4725, or go to: http://www.intel.com/design/literature.htm
Intel processor numbers are not a measure of performance. Processor numbers differentiate features within each processor family, not across different processor families. Go to:
The Intel® C++ Compiler is provided under Intel's End User License Agreement (EULA).
Please consult the licenses included in the distribution for details.
Intel, Intel logo, Pentium, Core, Atom, Iris, Intel® Xeon®, Intel® Xeon Phi™, and Cilk are trademarks of Intel Corporation in the U.S. and other countries.
* Other names and brands may be claimed as the property of others.
Copyright © 2018 Intel Corporation. All Rights Reserved.
Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.