MIPS64: Fix '[turbofan] Introduce DeoptimizeIf And DeoptimizeUnless common

operators.'

Port c129aa4d

Original commit message:
These macro operators represent a conditional eager deoptimization exit
without explicit branching, which greatly reduces overhead of both
scheduling and register allocation, and thereby greatly reduces overall
compilation time, esp. when there are a lot of eager deoptimization
exits.

BUG=
TEST=mjsunit/asm/embenchen/fasta

Review URL: https://codereview.chromium.org/1736653003

Cr-Commit-Position: refs/heads/master@{#34301}

src/compiler/mips64/instruction-selector-mips64.cc

@@ -1560,6 +1560,9 @@ void EmitWordCompareZero(InstructionSelector* selector, Node* value,
   if (cont->IsBranch()) {
     selector->Emit(opcode, g.NoOutput(), value_operand, g.TempImmediate(0),
                    g.Label(cont->true_block()), g.Label(cont->false_block()));
+  } else if (cont->IsDeoptimize()) {
+    selector->EmitDeoptimize(opcode, g.NoOutput(), value_operand,
+                             g.TempImmediate(0), cont->frame_state());
   } else {
     selector->Emit(opcode, g.DefineAsRegister(cont->result()), value_operand,
                    g.TempImmediate(0));