MIPS: Switch full-codegen from StackHandlers to handler table.

src/mips64/macro-assembler-mips64.cc

Index: src/mips64/macro-assembler-mips64.cc
diff --git a/src/mips64/macro-assembler-mips64.cc b/src/mips64/macro-assembler-mips64.cc
index bf008e084b423c37c12b1598f7d8548094cd3279..181c5451dba040541bd8158c46a045a103ac977d 100644
--- a/src/mips64/macro-assembler-mips64.cc
+++ b/src/mips64/macro-assembler-mips64.cc
@@ -3222,40 +3222,22 @@ void MacroAssembler::DebugBreak() {
 // ---------------------------------------------------------------------------
 // Exception handling.
 
-void MacroAssembler::PushTryHandler(StackHandler::Kind kind,
-                                    int handler_index) {
+void MacroAssembler::PushStackHandler() {
   // Adjust this code if not the case.
-  STATIC_ASSERT(StackHandlerConstants::kSize == 3 * kPointerSize);
+  STATIC_ASSERT(StackHandlerConstants::kSize == 1 * kPointerSize);
   STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0 * kPointerSize);
-  STATIC_ASSERT(StackHandlerConstants::kStateOffset == 1 * kPointerSize);
-  STATIC_ASSERT(StackHandlerConstants::kContextOffset == 2 * kPointerSize);
-
-  // For the JSEntry handler, we must preserve a0-a3 and s0.
-  // a5-a7 are available. We will build up the handler from the bottom by
-  // pushing on the stack.
-  // Set up the the index (a6) for pushing.
-  li(a6, Operand(handler_index));
-
-  // Push the context and index.
-  if (kind == StackHandler::JS_ENTRY) {
-    DCHECK(Smi::FromInt(0) == 0);
-    // The zero_reg indicates no context.
-    // The operands are reversed to match the order of MultiPush/Pop.
-    Push(zero_reg, a6);
-  } else {
-    MultiPush(a6.bit() | cp.bit());
-  }
 
   // Link the current handler as the next handler.
   li(a6, Operand(ExternalReference(Isolate::kHandlerAddress, isolate())));
   ld(a5, MemOperand(a6));
   push(a5);
+
   // Set this new handler as the current one.
   sd(sp, MemOperand(a6));
 }
 
 
-void MacroAssembler::PopTryHandler() {
+void MacroAssembler::PopStackHandler() {
   STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0);
   pop(a1);
   Daddu(sp, sp, Operand(StackHandlerConstants::kSize - kPointerSize));