[builtins] Introduce a builtin for Abort().

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 97d63a421ca496bc8eea9343d4cc7ffce1ef43ea..724eb427927fefa746c66404ce5c0eb359fc0f9e 100644
--- a/src/mips64/macro-assembler-mips64.cc
+++ b/src/mips64/macro-assembler-mips64.cc
@@ -6088,16 +6088,17 @@ void MacroAssembler::Abort(BailoutReason reason) {
   }
 #endif
 
-  li(a0, Operand(Smi::FromInt(reason)));
-  push(a0);
+  // Check if Abort() has already been initialized.
+  DCHECK(isolate()->builtins()->Abort()->IsHeapObject());
+  Move(a0, Smi::FromInt(static_cast<int>(reason)));

[Michael Starzinger, 2016/07/18 08:51:11]

nit: Empty newline after this block for readability.

[ahaas, 2016/07/18 09:04:17]

Done

   // Disable stub call restrictions to always allow calls to abort.
   if (!has_frame_) {
     // We don't actually want to generate a pile of code for this, so just
     // claim there is a stack frame, without generating one.
     FrameScope scope(this, StackFrame::NONE);
-    CallRuntime(Runtime::kAbort);
+    Call(isolate()->builtins()->Abort(), RelocInfo::CODE_TARGET);
   } else {
-    CallRuntime(Runtime::kAbort);
+    Call(isolate()->builtins()->Abort(), RelocInfo::CODE_TARGET);
   }
   // Will not return here.
   if (is_trampoline_pool_blocked()) {