PPC/s390: [sparkplug] Use return to jump to optimized code to keep the RSB balanced

Port af3c5307

Original Commit Message:

    This threads through a JumpMode kJump/kReturn to JumpCodeObject so we
    can use a return instruction to jump instead by first pushing the jump
    target and then using a return instruction.

R=verwaest@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: I354329238d00503a234556f25adccd920d26d320
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2700036Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72816}

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

@@ -3336,7 +3336,8 @@ void TurboAssembler::CallCodeObject(Register code_object) {
   Call(code_object);
 }
 
-void TurboAssembler::JumpCodeObject(Register code_object) {
+void TurboAssembler::JumpCodeObject(Register code_object, JumpMode jump_mode) {
+  DCHECK_EQ(JumpMode::kJump, jump_mode);
   LoadCodeObjectEntry(code_object, code_object);
   Jump(code_object);
 }

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

@@ -443,7 +443,8 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
   void LoadEntryFromBuiltinIndex(Register builtin_index);
   void LoadCodeObjectEntry(Register destination, Register code_object) override;
   void CallCodeObject(Register code_object) override;
-  void JumpCodeObject(Register code_object) override;
+  void JumpCodeObject(Register code_object,
+                      JumpMode jump_mode = JumpMode::kJump) override;
 
   void CallBuiltinByIndex(Register builtin_index) override;
   void CallForDeoptimization(Builtins::Name target, int deopt_id, Label* exit,

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

@@ -4654,7 +4654,8 @@ void TurboAssembler::CallCodeObject(Register code_object) {
   Call(code_object);
 }
 
-void TurboAssembler::JumpCodeObject(Register code_object) {
+void TurboAssembler::JumpCodeObject(Register code_object, JumpMode jump_mode) {
+  DCHECK_EQ(JumpMode::kJump, jump_mode);
   LoadCodeObjectEntry(code_object, code_object);
   Jump(code_object);
 }

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

@@ -102,7 +102,8 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
   void LoadEntryFromBuiltinIndex(Register builtin_index);
   void LoadCodeObjectEntry(Register destination, Register code_object) override;
   void CallCodeObject(Register code_object) override;
-  void JumpCodeObject(Register code_object) override;
+  void JumpCodeObject(Register code_object,
+                      JumpMode jump_mode = JumpMode::kJump) override;
 
   void CallBuiltinByIndex(Register builtin_index) override;