[Turbofan] Save and restore lr in OutOfLineRecordWrite when frame is elided.

src/compiler/mips/code-generator-mips.cc

Index: src/compiler/mips/code-generator-mips.cc
diff --git a/src/compiler/mips/code-generator-mips.cc b/src/compiler/mips/code-generator-mips.cc
index 05d53af12b59b8c1579b62dc6bdc16810ff26d51..4c9547b973a1708bc19fadf99f861d0b479e8e64 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -234,12 +234,17 @@ class OutOfLineRecordWrite final : public OutOfLineCode {
     }
     SaveFPRegsMode const save_fp_mode =
         frame()->DidAllocateDoubleRegisters() ? kSaveFPRegs : kDontSaveFPRegs;
-    // TODO(turbofan): Once we get frame elision working, we need to save
-    // and restore lr properly here if the frame was elided.
+    if (!frame()->needs_frame()) {
+      // We need to save and restore ra if the frame was elided.
+      __ Push(ra);
+    }
     RecordWriteStub stub(isolate(), object_, scratch0_, scratch1_,
                          EMIT_REMEMBERED_SET, save_fp_mode);
     __ Addu(scratch1_, object_, index_);
     __ CallStub(&stub);
+    if (!frame()->needs_frame()) {
+      __ Pop(ra);
+    }
   }
 
  private: