Recently, compiler optimizations and their improvements for AArch64 have been actively added to GCC and LLVM. For optimizations for HPC applications, GCC with a Fortran front end is superior to LLVM. In this presentation, we compare the code generated by GCC and LLVM for kernel parts of HPC applications on AArch64, and investigate the current problems of LLVM and propose solutions for them.
Senior Researcher (FUJITSU LABORATORIES LTD.)
In 1992, He joined Fujitsu Laboratories Ltd. His research interests are in the area of compiler optimizations and computer architectures. He joined Linaro as member engineer in 2017.