https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109257
--- Comment #5 from LIU Hao <lh_mouse at 126 dot com> --- (In reply to jbeulich from comment #4) > Being as compatible as possible with MASM has been the primary goal of > supporting Intel syntax. Intel's SDM doesn't specify complete assembly > language; it serves as a reference where possible/sensible. GAS may accept it at any cost but GCC should not generate it. This is an issue about GCC, not GAS.