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

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

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/code-generator.h"
 
 #include "src/ast/scopes.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 1888 matching lines @@
       __ LoadP(temp, src, r0);
       __ StoreP(temp, g.ToMemOperand(destination));
     }
   } else if (source->IsConstant()) {
     Constant src = g.ToConstant(source);
     if (destination->IsRegister() || destination->IsStackSlot()) {
       Register dst =
           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,
                   isolate()->factory()->NewNumber(src.ToFloat32(), TENURED));
           break;
         case Constant::kFloat64:
           __ Move(dst,
                   isolate()->factory()->NewNumber(src.ToFloat64(), TENURED));
           break;
         case Constant::kExternalReference:
@@ skipping 155 matching lines @@
       padding_size -= 2;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8