Emit exception handler table in TurboFan.

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

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/base/bits.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 
 namespace v8 {
@@ skipping 431 matching lines @@
 void InstructionSelector::VisitFloat64RoundTruncate(Node* node) {
   VisitRR(this, kMipsFloat64RoundTruncate, node);
 }
 
 
 void InstructionSelector::VisitFloat64RoundTiesAway(Node* node) {
   UNREACHABLE();
 }
 
 
-void InstructionSelector::VisitCall(Node* node) {
+void InstructionSelector::VisitCall(Node* node, BasicBlock* handler) {
   MipsOperandGenerator g(this);
   const CallDescriptor* descriptor = OpParameter<const CallDescriptor*>(node);
 
   FrameStateDescriptor* frame_state_descriptor = NULL;
   if (descriptor->NeedsFrameState()) {
     frame_state_descriptor =
         GetFrameStateDescriptor(node->InputAt(descriptor->InputCount()));
   }
 
   CallBuffer buffer(zone(), descriptor, frame_state_descriptor);
 
   // Compute InstructionOperands for inputs and outputs.
   InitializeCallBuffer(node, &buffer, true, false);
   // Possibly align stack here for functions.
   int push_count = buffer.pushed_nodes.size();
   if (push_count > 0) {
     Emit(kMipsStackClaim | MiscField::encode(push_count), g.NoOutput());
   }
   int slot = buffer.pushed_nodes.size() - 1;
   for (auto i = buffer.pushed_nodes.rbegin(); i != buffer.pushed_nodes.rend();
        ++i) {
     Emit(kMipsStoreToStackSlot | MiscField::encode(slot), g.NoOutput(),
          g.UseRegister(*i));
     slot--;
   }
 
+  // Pass label of exception handler block.
+  CallDescriptor::Flags flags = descriptor->flags();
+  if (handler != nullptr) {
+    flags |= CallDescriptor::kHasExceptionHandler;
+    buffer.instruction_args.push_back(g.Label(handler));
+  }
+
   // Select the appropriate opcode based on the call type.
   InstructionCode opcode;
   switch (descriptor->kind()) {
     case CallDescriptor::kCallCodeObject: {
       opcode = kArchCallCodeObject;
       break;
     }
     case CallDescriptor::kCallJSFunction:
       opcode = kArchCallJSFunction;
       break;
     default:
       UNREACHABLE();
       return;
   }
-  opcode |= MiscField::encode(descriptor->flags());
+  opcode |= MiscField::encode(flags);
 
   // Emit the call instruction.
   InstructionOperand* first_output =
       buffer.outputs.size() > 0 ? &buffer.outputs.front() : NULL;
   Instruction* call_instr =
       Emit(opcode, buffer.outputs.size(), first_output,
            buffer.instruction_args.size(), &buffer.instruction_args.front());
   call_instr->MarkAsCall();
 }
 
@@ skipping 381 matching lines @@
     return MachineOperatorBuilder::kFloat64Floor |
            MachineOperatorBuilder::kFloat64Ceil |
            MachineOperatorBuilder::kFloat64RoundTruncate;
   }
   return MachineOperatorBuilder::kNoFlags;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8