ppc: remove StoreTaggedFieldX

Change-Id: Ide62ce4c8ac13e6ae8e417bbe06a28c3772be785
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953040Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75083}

src/codegen/ppc/macro-assembler-ppc.cc

@@ -513,18 +513,6 @@ void TurboAssembler::SmiUntag(Register dst, const MemOperand& src, RCBit rc,
   SmiUntag(dst, rc);
 }
 
-void TurboAssembler::StoreTaggedFieldX(const Register& value,
-                                       const MemOperand& dst_field_operand,
-                                       const Register& scratch) {
-  if (COMPRESS_POINTERS_BOOL) {
-    RecordComment("[ StoreTagged");
-    stwx(value, dst_field_operand);
-    RecordComment("]");
-  } else {
-    StoreU64(value, dst_field_operand);
-  }
-}
-
 void TurboAssembler::StoreTaggedField(const Register& value,
                                       const MemOperand& dst_field_operand,
                                       const Register& scratch) {

src/codegen/ppc/macro-assembler-ppc.h

@@ -666,9 +666,6 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
   void StoreTaggedField(const Register& value,
                         const MemOperand& dst_field_operand,
                         const Register& scratch = no_reg);
-  void StoreTaggedFieldX(const Register& value,
-                         const MemOperand& dst_field_operand,
-                         const Register& scratch = no_reg);
 
   void DecompressTaggedSigned(Register destination, MemOperand field_operand);
   void DecompressTaggedSigned(Register destination, Register src);

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

@@ -1236,7 +1236,7 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
         ool = zone()->New<OutOfLineRecordWrite>(
             this, object, offset, value, scratch0, scratch1, mode,
             DetermineStubCallMode(), &unwinding_info_writer_);
-        __ StoreTaggedFieldX(value, MemOperand(object, offset), r0);
+        __ StoreTaggedField(value, MemOperand(object, offset), r0);
       }
       if (mode > RecordWriteMode::kValueIsPointer) {
         __ JumpIfSmi(value, ool->exit());
@@ -3824,7 +3824,7 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
       break;
     }
     case kPPC_StoreCompressTagged: {
-      ASSEMBLE_STORE_INTEGER(StoreTaggedField, StoreTaggedFieldX);
+      ASSEMBLE_STORE_INTEGER(StoreTaggedField, StoreTaggedField);
       break;
     }
     case kPPC_LoadDecompressTaggedSigned: {