| # RUN: not --crash llc -march=amdgcn -mcpu=gfx1100 -mattr=+wavefrontsize32,-wavefrontsize64 -run-pass machineverifier -o /dev/null %s 2>&1 | FileCheck -check-prefix=GFX11-ERR %s | 
 |  | 
 | # GFX11-ERR: *** Bad machine code: VOP* instruction violates constant bus restriction *** | 
 | # GFX11-ERR: $vgpr2, $vgpr3 = V_DUAL_CNDMASK_B32_e32_X_MUL_F32_e32 $sgpr0, $vgpr0, $sgpr1, $vgpr1, implicit $exec, implicit $mode, implicit $vcc, implicit $vcc_lo | 
 | --- | 
 | name: vopd_cndmask_2sgpr | 
 | body:            | | 
 |   bb.0: | 
 |     liveins: $sgpr0, $sgpr1, $vgpr0, $vgpr1 | 
 |     $vgpr2, $vgpr3 = V_DUAL_CNDMASK_B32_e32_X_MUL_F32_e32 $sgpr0, $vgpr0, $sgpr1, $vgpr1, implicit $exec, implicit $mode, implicit $vcc, implicit $vcc_lo | 
 | ... |