https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88794
--- Comment #1 from Wei Xiao <wei3.xiao at intel dot com> --- My change (r265827) is based on the latest SDM (IntelĀ® 64 and IA-32 Architectures Software Developer Manuals) which is incorrect for the fixupimm intrinsics. I'm preparing a patch to fix it.