Allow inlining of functions containing RegExp literals.

src/mips/lithium-codegen-mips.cc

Index: src/mips/lithium-codegen-mips.cc
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index 584fd7aa62d53eadf87f5f5ee90faea57f7fb53c..60df710dbf119e043db163cc13a01e6fae54e156 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -4759,15 +4759,13 @@ void LCodeGen::DoToFastProperties(LToFastProperties* instr) {
 void LCodeGen::DoRegExpLiteral(LRegExpLiteral* instr) {
   Label materialized;
   // Registers will be used as follows:
-  // a3 = JS function.
   // t3 = literals array.
   // a1 = regexp literal.
   // a0 = regexp literal clone.
   // a2 and t0-t2 are used as temporaries.
-  __ lw(a3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
-  __ lw(t3, FieldMemOperand(a3, JSFunction::kLiteralsOffset));
-  int literal_offset = FixedArray::kHeaderSize +
-      instr->hydrogen()->literal_index() * kPointerSize;
+  int literal_offset =
+      FixedArray::OffsetOfElementAt(instr->hydrogen()->literal_index());
+  __ LoadHeapObject(t3, instr->hydrogen()->literals());
   __ lw(a1, FieldMemOperand(t3, literal_offset));
   __ LoadRoot(at, Heap::kUndefinedValueRootIndex);
   __ Branch(&materialized, ne, a1, Operand(at));