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Intel® Parallel Studio XE 2015 Composer Edition for C++ Linux*

Installation Guide and Release Notes 16

of native ISA at link time by using the new option /Qgpu-arch:<arch> for Windows and –mgpu-

arch=<arch> for Linux. The option is described in detail in the User’s Guide.

3.2.2 Static Analysis is deprecated

Support for Static Analysis is deprecated and will be removed in a future release. If you have

concerns or feedback, please comment.

3.2.3 Support for offload to Intel® Graphics Technology

Support is provided via either a synchronous (with #pragma offload target(gfx) and a

cilk_for parallel loop) or asynchronous (with #pragma offload target(gfx_kernel)

and APIs provided in the provided gfx_rt.h header) offload implementation. Offload is

supported from 64-bit applications only. Please see the Intel Compiler User’s Guide under Key

Features->Intel® Graphics Technology for information. Known limitations are

documented in the release notes.

3.2.4 _bittest and _bittestandcomplement intrinsics supported in Intel® C++ Compiler

15.0

Support is now provided for the _bittest and _bittestandcomplement intrinsics that are currently

supported for Windows*.

3.2.5 Intel-specific version of x86intrin.h provided in Intel® C++ Compiler 15.0 to avoid

compilation errors

Compilations including the x86intrin.h provided by gcc* 4.9 may include unguarded references

to intrinsics the Intel compiler does not support. To resolve this, the Intel® C++ Compiler is

providing a version of x86intrin.h that will compile cleanly.

3.2.6 New Optimization Report interface, report structure, and options in Intel® C++

Compiler 15.0

The four kinds of optimization reports (-opt-report, -vec-report, -openmp-report, and -par-report)

have been consolidated under one -opt-report interface in this version of Intel® C++ Compiler.

This consolidated optimization report has been rewritten to improve the presentation, content,

and precision of the information provided so that users better understand what optimizations

were performed by the compiler and how they may be tuned to yield the best performance.

The output of this report no longer defaults to stderr due to issues with parallel builds. Instead,

by default an output file (extension .optrpt) containing the report for each corresponding object

file is generated to the target directory of the compilation process (i.e. the same directory where

object files would be generated). -opt-report-file (for example: -opt-report-file:stderr) can be used

to change this behavior.

The -vec-report, -openmp-report, and -par-report options have been deprecated, but they

remain and map to corresponding values of the -opt-report option. However, the report

information and formatting, and the default to reporting to a file, will follow the new opt-report

model.

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