Improved printing of jump tables.

src/ia32/lithium-codegen-ia32.cc

Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index fd4000be7f63754a26b8bee419e078de2b42a9cd..4b9a62dbd863bc16aae785f89546119d9e983235 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -349,9 +349,18 @@ bool LCodeGen::GenerateJumpTable() {
   for (int i = 0; i < jump_table_.length(); i++) {
     __ bind(&jump_table_[i].label);
     Address entry = jump_table_[i].address;
+    bool is_lazy_deopt = jump_table_[i].is_lazy_deopt;
+    Deoptimizer::BailoutType type =
+        is_lazy_deopt ? Deoptimizer::LAZY : Deoptimizer::EAGER;
+    int id = Deoptimizer::GetDeoptimizationId(entry, type);
+    if (id == Deoptimizer::kNotDeoptimizationEntry) {
+      Comment(";;; jump table entry %d.", i);
+    } else {
+      Comment(";;; jump table entry %d: deoptimization bailout %d.", i, id);
+    }
     if (jump_table_[i].needs_frame) {
       __ push(Immediate(ExternalReference::ForDeoptEntry(entry)));
-      if (jump_table_[i].is_lazy_deopt) {
+      if (is_lazy_deopt) {
         if (needs_frame_is_call.is_bound()) {
           __ jmp(&needs_frame_is_call);
         } else {
@@ -396,7 +405,7 @@ bool LCodeGen::GenerateJumpTable() {
         }
       }
     } else {
-      if (jump_table_[i].is_lazy_deopt) {
+      if (is_lazy_deopt) {
         __ call(entry, RelocInfo::RUNTIME_ENTRY);
       } else {
         __ jmp(entry, RelocInfo::RUNTIME_ENTRY);