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* [Bug modula2/115003] New: exporting a symbol to outer scope with a name clash causes ICE
@ 2024-05-09 9:06 gaius at gcc dot gnu.org
2024-05-09 9:06 ` [Bug modula2/115003] " gaius at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: gaius at gcc dot gnu.org @ 2024-05-09 9:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115003
Bug ID: 115003
Summary: exporting a symbol to outer scope with a name clash
causes ICE
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: modula2
Assignee: gaius at gcc dot gnu.org
Reporter: gaius at gcc dot gnu.org
Target Milestone: ---
As reported on the gm2 mailing list, the following program causes an ICE:
MODULE Test;
(*
* Produces internal compiler error
* Inside SymbolTable.GetScope, GetPsym() returns an unexpected token.
*)
TYPE CardType = CARDINAL;
MODULE Inside;
EXPORT CardType;
END Inside;
END Test.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug modula2/115003] exporting a symbol to outer scope with a name clash causes ICE
2024-05-09 9:06 [Bug modula2/115003] New: exporting a symbol to outer scope with a name clash causes ICE gaius at gcc dot gnu.org
@ 2024-05-09 9:06 ` gaius at gcc dot gnu.org
2024-05-09 9:13 ` gaius at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: gaius at gcc dot gnu.org @ 2024-05-09 9:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115003
Gaius Mulley <gaius at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2024-05-09
--- Comment #1 from Gaius Mulley <gaius at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug modula2/115003] exporting a symbol to outer scope with a name clash causes ICE
2024-05-09 9:06 [Bug modula2/115003] New: exporting a symbol to outer scope with a name clash causes ICE gaius at gcc dot gnu.org
2024-05-09 9:06 ` [Bug modula2/115003] " gaius at gcc dot gnu.org
@ 2024-05-09 9:13 ` gaius at gcc dot gnu.org
2024-05-09 18:36 ` cvs-commit at gcc dot gnu.org
2024-05-09 18:36 ` gaius at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: gaius at gcc dot gnu.org @ 2024-05-09 9:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115003
--- Comment #2 from Gaius Mulley <gaius at gcc dot gnu.org> ---
Created attachment 58143
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58143&action=edit
Proposed fix
The scope was an unknown symbol which was not in the case list within
SymbolTable.GetScope.
This patch adds a missing case clause allowing the compiler to recover.
$ gm2 Test.mod
Test.mod:11:9: error: symbol ‘CardType’ is already declared in this scope, use
a different name or remove the declaration
11 | EXPORT CardType;
| ^~~~~~~~
Test.mod:7:17: error: symbol ‘CardType’ also declared in this module
7 | TYPE CardType = CARDINAL;
| ^~~~~~~~
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug modula2/115003] exporting a symbol to outer scope with a name clash causes ICE
2024-05-09 9:06 [Bug modula2/115003] New: exporting a symbol to outer scope with a name clash causes ICE gaius at gcc dot gnu.org
2024-05-09 9:06 ` [Bug modula2/115003] " gaius at gcc dot gnu.org
2024-05-09 9:13 ` gaius at gcc dot gnu.org
@ 2024-05-09 18:36 ` cvs-commit at gcc dot gnu.org
2024-05-09 18:36 ` gaius at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-05-09 18:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115003
--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Gaius Mulley <gaius@gcc.gnu.org>:
https://gcc.gnu.org/g:bc5afdf14ccf8375f7fb3de2be1121aaf550f8aa
commit r15-349-gbc5afdf14ccf8375f7fb3de2be1121aaf550f8aa
Author: Gaius Mulley <gaiusmod2@gmail.com>
Date: Thu May 9 19:35:20 2024 +0100
PR modula2/115003 exporting a symbol to outer scope with a name clash
causes ICE
An ICE will occur if an unknown symbol is exported and causes a name
clash. The error mechanism attempts to find the scope of an unknown
symbol. This patch adds a missing case clause to GetScope and returns
NulSym if the scope is an unknown symbol.
gcc/m2/ChangeLog:
PR modula2/115003
* gm2-compiler/SymbolTable.mod (GetScope): Add UndefinedSym
case clause and return NulSym.
Signed-off-by: Gaius Mulley <gaiusmod2@gmail.com>
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug modula2/115003] exporting a symbol to outer scope with a name clash causes ICE
2024-05-09 9:06 [Bug modula2/115003] New: exporting a symbol to outer scope with a name clash causes ICE gaius at gcc dot gnu.org
` (2 preceding siblings ...)
2024-05-09 18:36 ` cvs-commit at gcc dot gnu.org
@ 2024-05-09 18:36 ` gaius at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: gaius at gcc dot gnu.org @ 2024-05-09 18:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115003
Gaius Mulley <gaius at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #4 from Gaius Mulley <gaius at gcc dot gnu.org> ---
Closing now that the patch has been applied.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2024-05-09 9:06 [Bug modula2/115003] New: exporting a symbol to outer scope with a name clash causes ICE gaius at gcc dot gnu.org
2024-05-09 9:06 ` [Bug modula2/115003] " gaius at gcc dot gnu.org
2024-05-09 9:13 ` gaius at gcc dot gnu.org
2024-05-09 18:36 ` cvs-commit at gcc dot gnu.org
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