The llvm.x86.fma.mask.vfmaddsub.ps.512 intrinsic; known as __builtin_ia32_vfmaddsubps512_mask in GCC.
See Implementation
The llvm.x86.fma.mask.vfmaddsub.ps.512 intrinsic; known as __builtin_ia32_vfmaddsubps512_mask in GCC.