Partial ia32 implementation of optimized try/catch (by Kevin Millikin)

src/ast.cc

Index: src/ast.cc
diff --git a/src/ast.cc b/src/ast.cc
index 6b68705d27760ae8b450a6ce88c22d54b01e4142..4e32479a71c85db96cb13d1252b8d0d2ffee0110 100644
--- a/src/ast.cc
+++ b/src/ast.cc
@@ -1066,6 +1066,15 @@ REGULAR_NODE(CompareOperation)
 REGULAR_NODE(ThisFunction)
 REGULAR_NODE(Call)
 REGULAR_NODE(CallNew)
+
+// TODO(mmassi): Work on lifting these restrictions and make TryCatch regular.
+// REGULAR_NODE(TryCatchStatement)
+void AstConstructionVisitor::VisitTryCatchStatement(TryCatchStatement* node) {
+    increase_node_count();
+    add_flag(kDontOsr);
+    add_flag(kDontInline);
+}
+
 // In theory, for VariableProxy we'd have to add:
 // if (node->var()->IsLookupSlot()) add_flag(kDontInline);
 // But node->var() is usually not bound yet at VariableProxy creation time, and
@@ -1083,7 +1092,6 @@ DONT_OPTIMIZE_NODE(ModuleVariable)
 DONT_OPTIMIZE_NODE(ModulePath)
 DONT_OPTIMIZE_NODE(ModuleUrl)
 DONT_OPTIMIZE_NODE(WithStatement)
-DONT_OPTIMIZE_NODE(TryCatchStatement)
 DONT_OPTIMIZE_NODE(TryFinallyStatement)
 DONT_OPTIMIZE_NODE(DebuggerStatement)
 DONT_OPTIMIZE_NODE(SharedFunctionInfoLiteral)