[inferprint] fix template deduplication

Reviewed By: jeremydubreil

Differential Revision: D6024848

fbshipit-source-id: 8223fcd

Makefile

@@ -32,6 +32,7 @@ BUILD_SYSTEMS_TESTS += \
   clang_with_E_flag \
   clang_with_M_flag \
   clang_with_MD_flag \
+  deduplicate_template_warnings \
   delete_results_dir \
   diff \
   diff_gen_build_script \

infer/src/backend/InferPrint.ml

@@ -731,11 +731,13 @@ module Issue = struct
   let compare_err_data_ (err_data1: Errlog.err_data) (err_data2: Errlog.err_data) =
     Location.compare err_data1.loc err_data2.loc
 
+  type proc_name_ = Typ.Procname.t
+
+  (* ignore proc name *)
+  let compare_proc_name_ _ _ = 0
+
   type t =
-    { proc_name: Typ.Procname.t [@compare.ignore ]
-    ; proc_location: Location.t
-    ; err_key: Errlog.err_key
-    ; err_data: err_data_ }
+    {proc_name: proc_name_; proc_location: Location.t; err_key: Errlog.err_key; err_data: err_data_}
     [@@deriving compare]
 
   (* If two issues are identical except for their procnames, they are probably duplicate reports on

infer/tests/codetoanalyze/cpp/errors/issues.exp

@@ -1,7 +1,4 @@
 INFER_MODEL/cpp/include/infer_model/shared_ptr.h, std::make_shared<lol>, 1, MEMORY_LEAK, [start of procedure std::make_shared<lol>(),Skipping lol: function or method not found]
-INFER_MODEL/cpp/include/infer_model/shared_ptr.h, std::make_shared<weak_ptr_constructors::Base,_int_*>, 1, MEMORY_LEAK, [start of procedure std::make_shared<weak_ptr_constructors::Base,_int_*>(),start of procedure Base,return from a call to weak_ptr_constructors::Base_Base,start of procedure Base,return from a call to weak_ptr_constructors::Base_Base]
-INFER_MODEL/cpp/include/infer_model/shared_ptr.h, std::make_shared<weak_ptr_constructors::Derived,_int_*>, 1, MEMORY_LEAK, [start of procedure std::make_shared<weak_ptr_constructors::Derived,_int_*>(),start of procedure Derived,start of procedure Base,return from a call to weak_ptr_constructors::Base_Base,return from a call to weak_ptr_constructors::Derived_Derived,start of procedure Derived,start of procedure Base,return from a call to weak_ptr_constructors::Base_Base,return from a call to weak_ptr_constructors::Derived_Derived]
-INFER_MODEL/cpp/include/infer_model/shared_ptr.h, std::make_shared<weak_ptr_lock_repro_large::RDC>, 1, MEMORY_LEAK, [start of procedure std::make_shared<weak_ptr_lock_repro_large::RDC>(),start of procedure RDC,start of procedure DC,return from a call to weak_ptr_lock_repro_large::DC_DC,return from a call to weak_ptr_lock_repro_large::RDC_RDC,start of procedure RDC,start of procedure DC,return from a call to weak_ptr_lock_repro_large::DC_DC,return from a call to weak_ptr_lock_repro_large::RDC_RDC]
 codetoanalyze/cpp/errors/c_tests/c_bugs.cpp, crash_fgetc, 4, NULL_DEREFERENCE, [start of procedure crash_fgetc()]
 codetoanalyze/cpp/errors/c_tests/c_bugs.cpp, crash_getc, 4, NULL_DEREFERENCE, [start of procedure crash_getc()]
 codetoanalyze/cpp/errors/c_tests/c_bugs.cpp, malloc_fail_gets_reported, 2, NULL_DEREFERENCE, [start of procedure malloc_fail_gets_reported()]
@@ -11,9 +8,7 @@ codetoanalyze/cpp/errors/c_tests/c_bugs.cpp, resource_leak_is_reported, 0, RESOU
 codetoanalyze/cpp/errors/include_header/header.h, header::A_div0, 0, DIVIDE_BY_ZERO, [start of procedure div0]
 codetoanalyze/cpp/errors/include_header/header.h, header::div0_fun, 0, DIVIDE_BY_ZERO, [start of procedure header::div0_fun()]
 codetoanalyze/cpp/errors/include_header/header2.h, header2::B<header2::A>_div0, 0, DIVIDE_BY_ZERO, [start of procedure div0]
-codetoanalyze/cpp/errors/include_header/header2.h, header2::B<int>_div0, 0, DIVIDE_BY_ZERO, [start of procedure div0]
 codetoanalyze/cpp/errors/include_header/header2.h, header2::div0_templ<header2::A>, 1, DIVIDE_BY_ZERO, [start of procedure header2::div0_templ<header2::A>()]
-codetoanalyze/cpp/errors/include_header/header2.h, header2::div0_templ<int>, 1, DIVIDE_BY_ZERO, [start of procedure header2::div0_templ<int>()]
 codetoanalyze/cpp/errors/memory_leaks/array_leak.cpp, leak, 1, MEMORY_LEAK, [start of procedure leak()]
 codetoanalyze/cpp/errors/memory_leaks/array_leak.cpp, leak, 2, DANGLING_POINTER_DEREFERENCE, [start of procedure leak()]
 codetoanalyze/cpp/errors/memory_leaks/array_leak.cpp, no_leak, 1, MEMORY_LEAK, [start of procedure no_leak()]