https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113978
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords|ABI |missed-optimization Target|x86_64-*-* |x86_64-w64-mingw32 --- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> --- So this is the mingw specific missed-optimization issue of comment#4 then, the ABI thing is a llvm bug.