MIPS: Fix KeyedStoreStubCompiler::GenerateStoreFastDoubleElement()

src/mips/stub-cache-mips.cc

Index: src/mips/stub-cache-mips.cc
diff --git a/src/mips/stub-cache-mips.cc b/src/mips/stub-cache-mips.cc
index 5feac30ba75cf6db482a09b3205cadd8d2bfd71b..c17a658d1dae16ecc6e0b2e42b8fbf608aa7e012 100644
--- a/src/mips/stub-cache-mips.cc
+++ b/src/mips/stub-cache-mips.cc
@@ -4428,7 +4428,8 @@ void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(
   __ sw(mantissa_reg, FieldMemOperand(scratch, FixedDoubleArray::kHeaderSize));
   uint32_t offset = FixedDoubleArray::kHeaderSize + sizeof(kHoleNanLower32);
   __ sw(exponent_reg, FieldMemOperand(scratch, offset));
-  __ Ret();
+  __ Ret(USE_DELAY_SLOT);
+  __ mov(v0, value_reg);  // In delay slot.
 
   __ bind(&maybe_nan);
   // Could be NaN or Infinity. If fraction is not zero, it's NaN, otherwise
@@ -4478,7 +4479,8 @@ void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(
     __ sw(mantissa_reg, MemOperand(scratch, 0));
     __ sw(exponent_reg, MemOperand(scratch, Register::kSizeInBytes));
   }
-  __ Ret();
+  __ Ret(USE_DELAY_SLOT);
+  __ mov(v0, value_reg);  // In delay slot.
 
   // Handle store cache miss, replacing the ic with the generic stub.
   __ bind(&miss_force_generic);