User and Reference Guide for the Intel® C++ Compiler 14.0
This topic only applies to IA-32 architecture targeting Intel® Graphics Technology. Intel® Graphics Technology is a preview feature.
You can write functions that you intend to run on a target, and sections of offloaded code, to take advantage of target-specific intrinsic functions.
When the compiler generates code for the coprocessor, it defines the macro __GFX__. You can write target-specific code within an #ifdef __GFX__ section.
Do not use the __GFX__ macro inside the statement following a #pragma offload statement. You can, however, use this macro in a subprogram called from the pragma.
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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 |