Overview: Porting from gcc* to the Intel® C++
This section describes a basic approach to porting applications from the gcc* C/C++ compilers to the Intel® C++ Compiler. These compilers correspond to each other as follows:
Unless otherwise indicated, the term "
gcc" refers to both gcc* and g++* compilers from the GNU Compiler Collection*.
Advantages to Using the Intel® C++
In many cases, porting applications from
gccto the Intel® C++ Compiler can be as easy as modifying your makefile to invoke the Intel® C++ Compiler (
icc) instead of
gcc. Using the Intel® C++ Compiler typically improves the performance of your application, especially for those that run on Intel processors. In many cases, your application's performance may also show improvement when running on non-Intel processors. When you compile your application with the Intel® C++ Compiler, you have access to:
- Compiler options that optimize your code for the latest Intel® architecture processors.
- Advanced profiling tools (PGO) similar to the GNU profilergprof.
- High-level optimizations (HLO).
- Interprocedural optimization (IPO).
- Intel intrinsic functions that the compiler uses to inline instructions, including various versions of Intel® Streaming SIMD Extensions and Intel® Advanced Vector Extensions.