ppc64: [baseline] port LoadTagged functions

Change-Id: Ic65f0cccaba6cea2d441540b57689e2c68af3125
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585526Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79967}

src/baseline/ppc/baseline-assembler-ppc-inl.h

@@ -332,11 +332,11 @@ void BaselineAssembler::Move(Register output, int32_t value) {
 }
 
 void BaselineAssembler::MoveMaybeSmi(Register output, Register source) {
-  __ mov(output, source);
+  __ mr(output, source);
 }
 
 void BaselineAssembler::MoveSmi(Register output, Register source) {
-  __ mov(output, source);
+  __ mr(output, source);
 }
 
 namespace detail {
@@ -451,15 +451,17 @@ void BaselineAssembler::Pop(T... registers) {
 
 void BaselineAssembler::LoadTaggedPointerField(Register output, Register source,
                                                int offset) {
-  UNIMPLEMENTED();
+  __ LoadTaggedPointerField(output, FieldMemOperand(source, offset), r0);
 }
+
 void BaselineAssembler::LoadTaggedSignedField(Register output, Register source,
                                               int offset) {
-  UNIMPLEMENTED();
+  __ LoadTaggedSignedField(output, FieldMemOperand(source, offset), r0);
 }
+
 void BaselineAssembler::LoadTaggedAnyField(Register output, Register source,
                                            int offset) {
-  UNIMPLEMENTED();
+  __ LoadAnyTaggedField(output, FieldMemOperand(source, offset), r0);
 }
 
 void BaselineAssembler::LoadWord16FieldZeroExtend(Register output,
@@ -469,7 +471,6 @@ void BaselineAssembler::LoadWord16FieldZeroExtend(Register output,
 
 void BaselineAssembler::LoadWord8Field(Register output, Register source,
                                        int offset) {
-  UNIMPLEMENTED();
   __ LoadU8(output, FieldMemOperand(source, offset), r0);
 }
 

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

@@ -627,6 +627,16 @@ void TurboAssembler::DecompressAnyTagged(Register destination,
   RecordComment("]");
 }
 
+void TurboAssembler::LoadTaggedSignedField(Register destination,
+                                           MemOperand field_operand,
+                                           Register scratch) {
+  if (COMPRESS_POINTERS_BOOL) {
+    DecompressTaggedSigned(destination, field_operand);
+  } else {
+    LoadU64(destination, field_operand, scratch);
+  }
+}
+
 void MacroAssembler::RecordWriteField(Register object, int offset,
                                       Register value, Register slot_address,
                                       LinkRegisterStatus lr_status,

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

@@ -982,6 +982,8 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
   void LoadTaggedPointerField(const Register& destination,
                               const MemOperand& field_operand,
                               const Register& scratch = no_reg);
+  void LoadTaggedSignedField(Register destination, MemOperand field_operand,
+                             Register scratch);
 
   // Loads a field containing any tagged value and decompresses it if necessary.
   void LoadAnyTaggedField(const Register& destination,