This tutorial intends to teach the audience several core concepts of LLVM, using an example pass that creates and inserts a function call to a library function into the target program. Note: The ...

Abstract: The vectorization of loops invoking math function is an important optimization that is available in most commercial compilers. This paper describes a new command line option, -fsimdmath, ...

For the following IR test case, Loop vectorizer blocks vectorization of this loop due to high cost of scalar sdiv operation. Manually enabling vectorization using #pragma improves performance ...

Abstract: The existence of control dependencies within programs necessitates intricate data reorganization, significantly hindering the vectorization capabilities in automated SIMD compilation ...