[wasm] Fix bounds check for zero initial memory.

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

Index: src/compiler/ppc/code-generator-ppc.cc
diff --git a/src/compiler/ppc/code-generator-ppc.cc b/src/compiler/ppc/code-generator-ppc.cc
index f8f3099209c4b310ce8d06373642cb9db0246a4c..fdd594274e3d7fdc1d8b44216339f7009f61607e 100644
--- a/src/compiler/ppc/code-generator-ppc.cc
+++ b/src/compiler/ppc/code-generator-ppc.cc
@@ -2237,11 +2237,11 @@ void CodeGenerator::AssembleMove(InstructionOperand* source,
       switch (src.type()) {
         case Constant::kInt32:
 #if V8_TARGET_ARCH_PPC64
-          if (src.rmode() == RelocInfo::WASM_MEMORY_SIZE_REFERENCE) {
+          if (RelocInfo::IsWasmMemorySizeReference(src.rmode())) {
 #else
           if (src.rmode() == RelocInfo::WASM_MEMORY_REFERENCE ||
               src.rmode() == RelocInfo::WASM_GLOBAL_REFERENCE ||
-              src.rmode() == RelocInfo::WASM_MEMORY_SIZE_REFERENCE) {
+              RelocInfo::IsWasmMemorySizeReference(src.rmode())) {
 #endif
             __ mov(dst, Operand(src.ToInt32(), src.rmode()));
           } else {
@@ -2254,7 +2254,7 @@ void CodeGenerator::AssembleMove(InstructionOperand* source,
               src.rmode() == RelocInfo::WASM_GLOBAL_REFERENCE) {
             __ mov(dst, Operand(src.ToInt64(), src.rmode()));
           } else {
-            DCHECK(src.rmode() != RelocInfo::WASM_MEMORY_SIZE_REFERENCE);
+            DCHECK(!RelocInfo::IsWasmMemorySizeReference(src.rmode()));
 #endif
             __ mov(dst, Operand(src.ToInt64()));
 #if V8_TARGET_ARCH_PPC64