711       if (SmiValuesAre31Bits() && instr->representation().IsSmi() &&  in DoShift()
960   bool easy_case = !r.IsTagged() || type.IsBoolean() || type.IsSmi() ||  in DoBranch()
1287     if (SmiValuesAre32Bits() && instr->representation().IsSmi()) {  in DoBitwise()
1535     if (SmiValuesAre32Bits() && instr->representation().IsSmi()) {  in DoSub()
1567     if (SmiValuesAre32Bits() && instr->representation().IsSmi()) {  in DoAdd()
1611   if (instr->representation().IsSmi()) {  in DoMathMinMax()
1852   if (from.IsSmi()) {  in DoChange()
1863       if (!val->representation().IsSmi()) result = AssignEnvironment(result);  in DoChange()
1865     } else if (to.IsSmi()) {  in DoChange()
1867       if (val->type().IsSmi()) {  in DoChange()
1873       if (val->type().IsSmi() || val->representation().IsSmi()) {  in DoChange()
1882         if (!val->representation().IsSmi()) result = AssignEnvironment(result);  in DoChange()
1894     } else if (to.IsSmi()) {  in DoChange()
1924     } else if (to.IsSmi()) {  in DoChange()
2039   if (r.IsSmi()) {  in DoConstant()
2107       (instr->access().representation().IsSmi() ||  in DoLoadNamedField()