S390: [compiler] Add relocatable pointer constants for wasm memory references.

src/compiler/s390/code-generator-s390.cc

Index: src/compiler/s390/code-generator-s390.cc
diff --git a/src/compiler/s390/code-generator-s390.cc b/src/compiler/s390/code-generator-s390.cc
index 5ea942db27f648352867ff8e34593e232be36da7..7643f57699db174c2e8270535873d242e955fe18 100644
--- a/src/compiler/s390/code-generator-s390.cc
+++ b/src/compiler/s390/code-generator-s390.cc
@@ -1906,10 +1906,26 @@ void CodeGenerator::AssembleMove(InstructionOperand* source,
           destination->IsRegister() ? g.ToRegister(destination) : kScratchReg;
       switch (src.type()) {
         case Constant::kInt32:
+#if !V8_TARGET_ARCH_S390X
+          if (src.rmode() == RelocInfo::WASM_MEMORY_REFERENCE) {
+            __ mov(dst, Operand(src.ToInt32(), src.rmode()));
+          } else {
+            __ mov(dst, Operand(src.ToInt32()));
+          }
+#else
           __ mov(dst, Operand(src.ToInt32()));
+#endif  // V8_TARGET_ARCH_S390X
           break;
         case Constant::kInt64:
+#if V8_TARGET_ARCH_S390X
+          if (src.rmode() == RelocInfo::WASM_MEMORY_REFERENCE) {
+            __ mov(dst, Operand(src.ToInt64(), src.rmode()));
+          } else {
+            __ mov(dst, Operand(src.ToInt64()));
+          }
+#else
           __ mov(dst, Operand(src.ToInt64()));
+#endif  // V8_TARGET_ARCH_S390X
           break;
         case Constant::kFloat32:
           __ Move(dst,