}
+void LCodeGen::DeoptIfTaggedButNotSmi(LEnvironment* environment,
+ HValue* value,
+ LOperand* operand) {
+ if (value->representation().IsTagged() && !value->type().IsSmi()) {
+ if (operand->IsRegister()) {
+ __ And(at, ToRegister(operand), Operand(kSmiTagMask));
+ DeoptimizeIf(ne, environment, at, Operand(zero_reg));
+ } else {
+ __ li(at, ToOperand(operand));
+ __ And(at, at, Operand(kSmiTagMask));
+ DeoptimizeIf(ne, environment, at, Operand(zero_reg));
+ }
+ }
+}
+
+
void LCodeGen::DoBoundsCheck(LBoundsCheck* instr) {
+ DeoptIfTaggedButNotSmi(instr->environment(),
+ instr->hydrogen()->length(),
+ instr->length());
+ DeoptIfTaggedButNotSmi(instr->environment(),
+ instr->hydrogen()->index(),
+ instr->index());
if (instr->index()->IsConstantOperand()) {
int constant_index =
ToInteger32(LConstantOperand::cast(instr->index()));
bool deoptimize_on_minus_zero,
LEnvironment* env);
+ void DeoptIfTaggedButNotSmi(LEnvironment* environment,
+ HValue* value,
+ LOperand* operand);
+
// Emits optimized code for typeof x == "y". Modifies input register.
// Returns the condition on which a final split to
// true and false label should be made, to optimize fallthrough.