MIPS: Fill more branch delay slots.

src/mips/builtins-mips.cc

Index: src/mips/builtins-mips.cc
diff --git a/src/mips/builtins-mips.cc b/src/mips/builtins-mips.cc
index 611c74f7f8a483fe80ee159e297f2ab32134a6f0..06273caf788b70f1a031177e501178b892e7c7cf 100644
--- a/src/mips/builtins-mips.cc
+++ b/src/mips/builtins-mips.cc
@@ -335,9 +335,9 @@ void ArrayNativeCode(MacroAssembler* masm, Label* call_generic_code) {
                        call_generic_code);
   __ IncrementCounter(counters->array_function_native(), 1, a3, t0);
   // Set up return value, remove receiver from stack and return.
-  __ mov(v0, a2);
   __ Addu(sp, sp, Operand(kPointerSize));
-  __ Ret();
+  __ Ret(USE_DELAY_SLOT);
+  __ mov(v0, a2);
 
   // Check for one argument. Bail out if argument is not smi or if it is
   // negative.
@@ -378,9 +378,9 @@ void ArrayNativeCode(MacroAssembler* masm, Label* call_generic_code) {
   __ IncrementCounter(counters->array_function_native(), 1, a2, t0);
 
   // Set up return value, remove receiver and argument from stack and return.
-  __ mov(v0, a3);
   __ Addu(sp, sp, Operand(2 * kPointerSize));
-  __ Ret();
+  __ Ret(USE_DELAY_SLOT);
+  __ mov(v0, a3);
 
   // Handle construction of an array from a list of arguments.
   __ bind(&argc_two_or_more);
@@ -434,8 +434,8 @@ void ArrayNativeCode(MacroAssembler* masm, Label* call_generic_code) {
   // a3: JSArray
   // sp[0]: receiver
   __ Addu(sp, sp, Operand(kPointerSize));
+  __ Ret(USE_DELAY_SLOT);
   __ mov(v0, a3);
-  __ Ret();
 
   __ bind(&has_non_smi_element);
   // Double values are handled by the runtime.
@@ -1372,15 +1372,17 @@ static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm,
   Label with_tos_register, unknown_state;
   __ Branch(&with_tos_register,
             ne, t2, Operand(FullCodeGenerator::NO_REGISTERS));
+  __ Ret(USE_DELAY_SLOT);
+  // Safe to fill delay slot Addu will emit one instruction.
   __ Addu(sp, sp, Operand(1 * kPointerSize));  // Remove state.
-  __ Ret();
 
   __ bind(&with_tos_register);
   __ lw(v0, MemOperand(sp, 1 * kPointerSize));
   __ Branch(&unknown_state, ne, t2, Operand(FullCodeGenerator::TOS_REG));
 
+  __ Ret(USE_DELAY_SLOT);
+  // Safe to fill delay slot Addu will emit one instruction.
   __ Addu(sp, sp, Operand(2 * kPointerSize));  // Remove state.
-  __ Ret();
 
   __ bind(&unknown_state);
   __ stop("no cases left");