[turbofan] First shot at eager deoptimization in Turbofan.

src/compiler/arm64/code-generator-arm64.cc

Index: src/compiler/arm64/code-generator-arm64.cc
diff --git a/src/compiler/arm64/code-generator-arm64.cc b/src/compiler/arm64/code-generator-arm64.cc
index 378a421fa10593a94f7d44d3143814b1c04141ac..b3c7230807935956e4ad64ef3a763a9d94180d78 100644
--- a/src/compiler/arm64/code-generator-arm64.cc
+++ b/src/compiler/arm64/code-generator-arm64.cc
@@ -368,6 +368,12 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
     case kArchNop:
       // don't emit code for nops.
       break;
+    case kArchDeoptimize: {
+      int deopt_state_id =
+          BuildTranslation(instr, -1, 0, OutputFrameStateCombine::Ignore());
+      AssembleDeoptimizerCall(deopt_state_id, Deoptimizer::EAGER);
+      break;
+    }
     case kArchRet:
       AssembleReturn();
       break;
@@ -892,9 +898,10 @@ void CodeGenerator::AssembleArchTableSwitch(Instruction* instr) {
 }
 
 
-void CodeGenerator::AssembleDeoptimizerCall(int deoptimization_id) {
+void CodeGenerator::AssembleDeoptimizerCall(
+    int deoptimization_id, Deoptimizer::BailoutType bailout_type) {
   Address deopt_entry = Deoptimizer::GetDeoptimizationEntry(
-      isolate(), deoptimization_id, Deoptimizer::LAZY);
+      isolate(), deoptimization_id, bailout_type);
   __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY);
 }