Emit exception handler table in TurboFan.

src/compiler/ia32/instruction-selector-ia32.cc

Index: src/compiler/ia32/instruction-selector-ia32.cc
diff --git a/src/compiler/ia32/instruction-selector-ia32.cc b/src/compiler/ia32/instruction-selector-ia32.cc
index beec701903ec4598f26fb3d093b7898b2ea27804..2ca56a480e9579b4e023f41d88329d541caaf503 100644
--- a/src/compiler/ia32/instruction-selector-ia32.cc
+++ b/src/compiler/ia32/instruction-selector-ia32.cc
@@ -718,7 +718,7 @@ void InstructionSelector::VisitFloat64RoundTiesAway(Node* node) {
 }
 
 
-void InstructionSelector::VisitCall(Node* node) {
+void InstructionSelector::VisitCall(Node* node, BasicBlock* handler) {
   IA32OperandGenerator g(this);
   const CallDescriptor* descriptor = OpParameter<const CallDescriptor*>(node);
 
@@ -745,6 +745,13 @@ void InstructionSelector::VisitCall(Node* node) {
     Emit(kIA32Push, g.NoOutput(), value);
   }
 
+  // Pass label of exception handler block.
+  CallDescriptor::Flags flags;

[Benedikt Meurer, 2015/02/19 18:31:19]

how about initializing flags to descriptor->flags() here, and skipping the ORing
below?

[Michael Starzinger, 2015/02/20 10:04:54]

Done.

+  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()) {
@@ -759,7 +766,7 @@ void InstructionSelector::VisitCall(Node* node) {
       UNREACHABLE();
       return;
   }
-  opcode |= MiscField::encode(descriptor->flags());
+  opcode |= MiscField::encode(descriptor->flags() | flags);
 
   // Emit the call instruction.
   InstructionOperand* first_output =