https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66821
--- Comment #7 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to Yulia Koval from comment #6) > msticlxl58$ size miam > text data bss dec hex filename > 72 0 0 72 48 miam > msticlxl58$ size march > text data bss dec hex filename > 81 0 0 81 51 march Which one is -march=iamcu?