s390x: [baseline] implement Tail/CallBuiltin

Change-Id: I68f9e6e8edc7054bec7e838f0d3b007be196d240
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3312157Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#78197}

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

@@ -171,12 +171,30 @@ void BaselineAssembler::JumpIfNotSmi(Register value, Label* target,
   __ JumpIfNotSmi(value, target);
 }
 
-void BaselineAssembler::CallBuiltin(Builtin builtin) { UNIMPLEMENTED(); }
+void BaselineAssembler::CallBuiltin(Builtin builtin) {
+  if (masm()->options().short_builtin_calls) {
+    // Generate pc-relative call.
+    __ CallBuiltin(builtin);
+  } else {
+    ScratchRegisterScope temps(this);
+    Register temp = temps.AcquireScratch();
+    __ LoadEntryFromBuiltin(builtin, temp);
+    __ Call(temp);
+  }
+}
 
 void BaselineAssembler::TailCallBuiltin(Builtin builtin) {
   ASM_CODE_COMMENT_STRING(masm_,
                           __ CommentForOffHeapTrampoline("tail call", builtin));
-  UNIMPLEMENTED();
+  if (masm()->options().short_builtin_calls) {
+    // Generate pc-relative call.
+    __ TailCallBuiltin(builtin);
+  } else {
+    ScratchRegisterScope temps(this);
+    Register temp = temps.AcquireScratch();
+    __ LoadEntryFromBuiltin(builtin, temp);
+    __ Jump(temp);
+  }
 }
 
 void BaselineAssembler::TestAndBranch(Register value, int mask, Condition cc,

src/codegen/s390/macro-assembler-s390.cc

@@ -496,6 +496,13 @@ void TurboAssembler::CallBuiltin(Builtin builtin) {
   Call(ip);
 }
 
+void TurboAssembler::TailCallBuiltin(Builtin builtin) {
+  ASM_CODE_COMMENT_STRING(this,
+                          CommentForOffHeapTrampoline("tail call", builtin));
+  mov(ip, Operand(BuiltinEntry(builtin), RelocInfo::OFF_HEAP_TARGET));
+  b(ip);
+}
+
 void TurboAssembler::Drop(int count) {
   if (count > 0) {
     int total = count * kSystemPointerSize;

src/codegen/s390/macro-assembler-s390.h

@@ -45,6 +45,7 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
   using TurboAssemblerBase::TurboAssemblerBase;
 
   void CallBuiltin(Builtin builtin);
+  void TailCallBuiltin(Builtin builtin);
   void AtomicCmpExchangeHelper(Register addr, Register output,
                                Register old_value, Register new_value,
                                int start, int end, int shift_amount, int offset,