[Prim][PIR] Set prim gflag for pure cpp (PaddlePaddle#60505)

* inference support decomp

* polish code

* add decomp base define

* add decomp base define2

* change decomp infer

* fix symbol overload

* fix test case

* debug

* debug

* decomp add debug info

* add cpp flag

* revert

* remove unused flag

Author: cyber-pioneer

paddle/fluid/prim/utils/utils.cc

@@ -17,10 +17,15 @@
 #include "paddle/fluid/prim/utils/static/static_global_utils.h"
 
 PADDLE_DEFINE_EXPORTED_bool(prim_enabled, false, "enable_prim or not");
+PADDLE_DEFINE_EXPORTED_bool(prim_all, false, "enable prim_all or not");
+PADDLE_DEFINE_EXPORTED_bool(prim_forward, false, "enable prim_forward or not");
+PADDLE_DEFINE_EXPORTED_bool(prim_backward, false, "enable prim_backward not");
+
 namespace paddle {
 namespace prim {
 bool PrimCommonUtils::IsBwdPrimEnabled() {
-  return StaticCompositeContext::Instance().IsBwdPrimEnabled();
+  bool res = StaticCompositeContext::Instance().IsBwdPrimEnabled();
+  return res || FLAGS_prim_all || FLAGS_prim_backward;
 }
 
 void PrimCommonUtils::SetBwdPrimEnabled(bool enable_prim) {
@@ -36,7 +41,8 @@ void PrimCommonUtils::SetEagerPrimEnabled(bool enable_prim) {
 }
 
 bool PrimCommonUtils::IsFwdPrimEnabled() {
-  return StaticCompositeContext::Instance().IsFwdPrimEnabled();
+  bool res = StaticCompositeContext::Instance().IsFwdPrimEnabled();
+  return res || FLAGS_prim_all || FLAGS_prim_forward;
 }
 
 void PrimCommonUtils::SetFwdPrimEnabled(bool enable_prim) {