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.
The compiler supports several syntax forms to express vector reductions in the target code:
#pragma simd reduction
built-in reduction functions for Array Notations, such as __sec_reduce_add or __sec_reduce_all_zero
some reduction loop patterns
In these cases, the compiler tries to generate a code sequence optimized for the target.
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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 |