diff options
| author | charlet <charlet@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-03-15 16:14:07 +0000 |
|---|---|---|
| committer | charlet <charlet@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-03-15 16:14:07 +0000 |
| commit | 0fd914d3001d43b3e6c8f9adb895cac8a25d0139 (patch) | |
| tree | 2ad488591abe1b897e87a50d7a83b1af75a5ff9d /gcc | |
| parent | 24cddfd6a992441d37ae0edad426b6a24e94ea1d (diff) | |
| download | gcc-0fd914d3001d43b3e6c8f9adb895cac8a25d0139.tar.gz | |
2005-03-08 Ed Schonberg <schonberg@adacore.com>
* sem_ch4.adb (Analyze_Concatenation): Do not consider operators marked
Eliminated as candidates for resolution. Both efficient, and avoids
anomalies with operators declared in deleted code.
(Process_Implicit_Dereference_Prefix): Use this procedure whenever
expansion is disabled (as when compiling a generic) to prevent spurious
warnings on prefixes of selected components.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@96505 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ada/sem_ch4.adb | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/gcc/ada/sem_ch4.adb b/gcc/ada/sem_ch4.adb index 17d9993f329..21b962cc3fa 100644 --- a/gcc/ada/sem_ch4.adb +++ b/gcc/ada/sem_ch4.adb @@ -216,8 +216,8 @@ package body Sem_Ch4 is (E : Entity_Id; P : Node_Id); -- Called when P is the prefix of an implicit dereference, denoting an - -- object E. If in semantics only mode (-gnatc), record that is a - -- reference to E. Normally, such a reference is generated only when the + -- object E. If in semantics only mode (-gnatc or generic), record that is + -- a reference to E. Normally, such a reference is generated only when the -- implicit dereference is expanded into an explicit one. E may be empty, -- in which case this procedure does nothing. @@ -1015,10 +1015,19 @@ package body Sem_Ch4 is end if; else - Op_Id := Get_Name_Entity_Id (Name_Op_Concat); + Op_Id := Get_Name_Entity_Id (Name_Op_Concat); while Present (Op_Id) loop if Ekind (Op_Id) = E_Operator then - Find_Concatenation_Types (L, R, Op_Id, N); + + -- Do not consider operators declared in dead code, they can + -- not be part of the resolution. + + if Is_Eliminated (Op_Id) then + null; + else + Find_Concatenation_Types (L, R, Op_Id, N); + end if; + else Analyze_User_Defined_Binary_Op (N, Op_Id); end if; @@ -4422,8 +4431,9 @@ package body Sem_Ch4 is Ref : Node_Id; begin - if Operating_Mode = Check_Semantics and then Present (E) then - + if Present (E) + and then (Operating_Mode = Check_Semantics or else not Expander_Active) + then -- We create a dummy reference to E to ensure that the reference -- is not considered as part of an assignment (an implicit -- dereference can never assign to its prefix). The Comes_From_Source |