s390x: [baseline] implement Load functions

Change-Id: I7f2463e8363a060651daabc6e32fbc56405868b7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3387074Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#78609}

src/baseline/s390/baseline-assembler-s390-inl.h

@@ -424,19 +424,19 @@ void BaselineAssembler::Pop(T... registers) {
 
 void BaselineAssembler::LoadTaggedPointerField(Register output, Register source,
                                                int offset) {
-  UNIMPLEMENTED();
+  __ LoadTaggedPointerField(output, FieldMemOperand(source, offset));
 }
 void BaselineAssembler::LoadTaggedSignedField(Register output, Register source,
                                               int offset) {
-  UNIMPLEMENTED();
+  __ LoadTaggedSignedField(output, FieldMemOperand(source, offset));
 }
 void BaselineAssembler::LoadTaggedAnyField(Register output, Register source,
                                            int offset) {
-  UNIMPLEMENTED();
+  __ LoadAnyTaggedField(output, FieldMemOperand(source, offset));
 }
 void BaselineAssembler::LoadByteField(Register output, Register source,
                                       int offset) {
-  UNIMPLEMENTED();
+  __ LoadU8(output, FieldMemOperand(source, offset));
 }
 void BaselineAssembler::StoreTaggedSignedField(Register target, int offset,
                                                Smi value) {