VM: Use delay slot in two places in MIPS intrinis code.

runtime/vm/intrinsifier_mips.cc

Index: runtime/vm/intrinsifier_mips.cc
diff --git a/runtime/vm/intrinsifier_mips.cc b/runtime/vm/intrinsifier_mips.cc
index 154493a7ae1319b623b8c1a2d5ae006626b5f8ca..63b775580e820cbb7154ba6a339f1e1b2d2e3da2 100644
--- a/runtime/vm/intrinsifier_mips.cc
+++ b/runtime/vm/intrinsifier_mips.cc
@@ -1359,8 +1359,9 @@ static void CompareDoubles(Assembler* assembler, RelationOperator rel_op) {
   __ Bind(&is_smi);
   __ SmiUntag(T0);
   __ mtc1(T0, STMP1);
-  __ cvtdw(D1, STMP1);
   __ b(&double_op);
+  __ delay_slot()->cvtdw(D1, STMP1);
+
 
   __ Bind(&fall_through);
 }
@@ -1422,8 +1423,8 @@ static void DoubleArithmeticOperations(Assembler* assembler, Token::Kind kind) {
   __ Bind(&is_smi);
   __ SmiUntag(T0);
   __ mtc1(T0, STMP1);
-  __ cvtdw(D1, STMP1);
   __ b(&double_op);
+  __ delay_slot()->cvtdw(D1, STMP1);
 
   __ Bind(&fall_through);
 }