MIPS: [compiler] Add relocatable pointer constants for wasm memory references.

src/compiler/mips64/code-generator-mips64.cc

Index: src/compiler/mips64/code-generator-mips64.cc
diff --git a/src/compiler/mips64/code-generator-mips64.cc b/src/compiler/mips64/code-generator-mips64.cc
index f77db12569ace6a849a70de3847e89c374ff38fb..27e30036455e50e50321c4f9b8f1d734e35879eb 100644
--- a/src/compiler/mips64/code-generator-mips64.cc
+++ b/src/compiler/mips64/code-generator-mips64.cc
@@ -2013,7 +2013,11 @@ void CodeGenerator::AssembleMove(InstructionOperand* source,
           __ li(dst, isolate()->factory()->NewNumber(src.ToFloat32(), TENURED));
           break;
         case Constant::kInt64:
-          __ li(dst, Operand(src.ToInt64()));
+          if (src.rmode() == RelocInfo::WASM_MEMORY_REFERENCE) {
+            __ li(dst, Operand(src.ToInt64(), src.rmode()));
+          } else {
+            __ li(dst, Operand(src.ToInt64()));
+          }
           break;
         case Constant::kFloat64:
           __ li(dst, isolate()->factory()->NewNumber(src.ToFloat64(), TENURED));