MIPS: Replace DeoptimizeOnUndefined with whitelisting AllowUndefinedAsNan

src/mips/lithium-codegen-mips.cc

Index: src/mips/lithium-codegen-mips.cc
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index 5f98ee40065187b977f7eb365065c503a9b3415c..25ba16232aa5a7b70f19e86756bcd5809a590e58 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -4685,7 +4685,7 @@ void LCodeGen::DoSmiUntag(LSmiUntag* instr) {
 
 void LCodeGen::EmitNumberUntagD(Register input_reg,
                                 DoubleRegister result_reg,
-                                bool deoptimize_on_undefined,
+                                bool allow_undefined_as_nan,
                                 bool deoptimize_on_minus_zero,
                                 LEnvironment* env,
                                 NumberUntagDMode mode) {
@@ -4702,7 +4702,7 @@ void LCodeGen::EmitNumberUntagD(Register input_reg,
     // Heap number map check.
     __ lw(scratch, FieldMemOperand(input_reg, HeapObject::kMapOffset));
     __ LoadRoot(at, Heap::kHeapNumberMapRootIndex);
-    if (deoptimize_on_undefined) {
+    if (!allow_undefined_as_nan) {
       DeoptimizeIf(ne, env, scratch, Operand(at));
     } else {
       Label heap_number, convert;
@@ -4875,7 +4875,7 @@ void LCodeGen::DoNumberUntagD(LNumberUntagD* instr) {
   }
 
   EmitNumberUntagD(input_reg, result_reg,
-                   instr->hydrogen()->deoptimize_on_undefined(),
+                   instr->hydrogen()->allow_undefined_as_nan(),
                    instr->hydrogen()->deoptimize_on_minus_zero(),
                    instr->environment(),
                    mode);