Compiler optimization involves adapting a compiler to reduce run-time or object size or both.
On gcc, the manual explains what -O3, -Os, etc. translate to in terms of specific optimisation arguments (-funswitch-loops, -fcompare-elim, etc.) …
clang compiler-optimization user-manualI have a C++ project which uses CMake as its build system. I'd like the following behavior: If cmake is …
c++ cmake compiler-optimizationReferring to the following SE answer. When writing A = A ?? B; it is the same as if( null != A ) A = …
c# compiler-optimization null-coalescing-operatorThe Problem We have a mid-sized program for a simulation task, that we need to optimize. We have already done …
c++ g++ compiler-optimizationAs far as I know, reference/pointer aliasing can hinder the compiler's ability to generate optimized code, since they must …
rust compiler-optimization llvm-codegenWhile writing an optimized ftol function I found some very odd behaviour in GCC 4.6.1. Let me show you the code …
c gcc assembly x86 compiler-optimizationMuch of our C# release code is built with the 'Optimize code' option turned off. I believe this is to …
c# visual-studio compiler-construction build compiler-optimizationThe v4 series of the gcc compiler can automatically vectorize loops using the SIMD processor on some modern CPUs, such …
gcc compiler-optimization simd auto-vectorization vector-processingDivision in processor takes much time, so I want to ask how to check in fastest way if number is …
c++ c performance compiler-optimization integer-divisionThis post is closely related to another one I posted some days ago. This time, I wrote a simple code …
c optimization sse compiler-optimization hpc