Also broken using radeon %VGPR11<def> = V_MADMK_F32 %SGPR3, 1077936128, %VGPR17, %EXEC<imp-use> LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction uses the constant bus more than once %VGPR10<def> = V_MADMK_F32 %SGPR2, 1077936128, %VGPR14, %EXEC<imp-use> LLVM failed to compile shader OpenGL renderer string: AMD TAHITI (DRM 2.50.0 / 4.13.0-mainline, LLVM 6.0.0)