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* [Bug c/110682] New: GCC, ICE: internal compiler error: in gimplify_expr, at gimplify.cc:16771
@ 2023-07-16 10:57 141242068 at smail dot nju.edu.cn
2023-11-13 19:17 ` [Bug c/110682] [12/13/14 Regression] ICE: internal compiler error: in gimplify_expr after error pinskia at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: 141242068 at smail dot nju.edu.cn @ 2023-07-16 10:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110682
Bug ID: 110682
Summary: GCC, ICE: internal compiler error: in gimplify_expr,
at gimplify.cc:16771
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: 141242068 at smail dot nju.edu.cn
Target Milestone: ---
When compiling below program using gcc-14 with option `gcc-14 -Ofast a.c`,
gcc-14 crashes:
```
struct a {
const signed char b;
};
void f(volatile struct a *c) {
c - 0 % c->b;
struct a c = {1};
}
```
GCC's output is pasted below:
```
<source>: In function 'f':
<source>:7:12: error: 'c' redeclared as different kind of symbol
7 | struct a c = {1};
| ^
<source>:5:27: note: previous definition of 'c' with type 'volatile struct a *'
5 | void f(volatile struct a *c) {
| ~~~~~~~~~~~~~~~~~~~^
<source>:6:5: internal compiler error: in gimplify_expr, at gimplify.cc:16771
6 | c - 0 % c->b;
| ~~^~~~~~~~~~
0x2150dee internal_error(char const*, ...)
???:0
0x9ce06c fancy_abort(char const*, int, char const*)
???:0
0xd7057a gimplify_stmt(tree_node**, gimple**)
???:0
0xd6d9ba gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
???:0
0xd7057a gimplify_stmt(tree_node**, gimple**)
???:0
0xd6e4eb gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
???:0
0xd7057a gimplify_stmt(tree_node**, gimple**)
???:0
0xd6d954 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
???:0
0xd7057a gimplify_stmt(tree_node**, gimple**)
???:0
0xd71a13 gimplify_body(tree_node*, bool)
???:0
0xd71e6f gimplify_function_tree(tree_node*)
???:0
0xbaebe7 cgraph_node::analyze()
???:0
0xbb2731 symbol_table::finalize_compilation_unit()
???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
```
This can be verified by visiting the Compiler Explorer:
https://gcc.godbolt.org/z/5951jvono
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c/110682] [12/13/14 Regression] ICE: internal compiler error: in gimplify_expr after error
2023-07-16 10:57 [Bug c/110682] New: GCC, ICE: internal compiler error: in gimplify_expr, at gimplify.cc:16771 141242068 at smail dot nju.edu.cn
@ 2023-11-13 19:17 ` pinskia at gcc dot gnu.org
2023-12-05 22:58 ` pinskia at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-13 19:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110682
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2023-11-13
Ever confirmed|0 |1
Summary|GCC, ICE: internal compiler |[12/13/14 Regression] ICE:
|error: in gimplify_expr, at |internal compiler error: in
|gimplify.cc:16771 |gimplify_expr after error
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c/110682] [12/13/14 Regression] ICE: internal compiler error: in gimplify_expr after error
2023-07-16 10:57 [Bug c/110682] New: GCC, ICE: internal compiler error: in gimplify_expr, at gimplify.cc:16771 141242068 at smail dot nju.edu.cn
2023-11-13 19:17 ` [Bug c/110682] [12/13/14 Regression] ICE: internal compiler error: in gimplify_expr after error pinskia at gcc dot gnu.org
@ 2023-12-05 22:58 ` pinskia at gcc dot gnu.org
2024-03-07 23:29 ` law at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-12-05 22:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110682
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |12.4
Known to work| |11.1.0, 11.4.0
Known to fail| |12.1.0
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c/110682] [12/13/14 Regression] ICE: internal compiler error: in gimplify_expr after error
2023-07-16 10:57 [Bug c/110682] New: GCC, ICE: internal compiler error: in gimplify_expr, at gimplify.cc:16771 141242068 at smail dot nju.edu.cn
2023-11-13 19:17 ` [Bug c/110682] [12/13/14 Regression] ICE: internal compiler error: in gimplify_expr after error pinskia at gcc dot gnu.org
2023-12-05 22:58 ` pinskia at gcc dot gnu.org
@ 2024-03-07 23:29 ` law at gcc dot gnu.org
2024-03-07 23:31 ` pinskia at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: law at gcc dot gnu.org @ 2024-03-07 23:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110682
Jeffrey A. Law <law at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |law at gcc dot gnu.org
Priority|P3 |P1
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c/110682] [12/13/14 Regression] ICE: internal compiler error: in gimplify_expr after error
2023-07-16 10:57 [Bug c/110682] New: GCC, ICE: internal compiler error: in gimplify_expr, at gimplify.cc:16771 141242068 at smail dot nju.edu.cn
` (2 preceding siblings ...)
2024-03-07 23:29 ` law at gcc dot gnu.org
@ 2024-03-07 23:31 ` pinskia at gcc dot gnu.org
2024-03-08 3:43 ` pinskia at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-03-07 23:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110682
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |pinskia at gcc dot gnu.org
Status|NEW |ASSIGNED
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I will take a look
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c/110682] [12/13/14 Regression] ICE: internal compiler error: in gimplify_expr after error
2023-07-16 10:57 [Bug c/110682] New: GCC, ICE: internal compiler error: in gimplify_expr, at gimplify.cc:16771 141242068 at smail dot nju.edu.cn
` (3 preceding siblings ...)
2024-03-07 23:31 ` pinskia at gcc dot gnu.org
@ 2024-03-08 3:43 ` pinskia at gcc dot gnu.org
2024-03-12 13:24 ` jakub at gcc dot gnu.org
2024-03-23 5:51 ` pinskia at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-03-08 3:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110682
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This fixes the ICE:
```
[apinski@xeond2 gcc]$ git diff
diff --git a/gcc/gimplify.cc b/gcc/gimplify.cc
index 6ebca964cb2..0f43324fb35 100644
--- a/gcc/gimplify.cc
+++ b/gcc/gimplify.cc
@@ -17681,7 +17681,11 @@ gimplify_expr (tree *expr_p, gimple_seq *pre_p,
gimple_seq *post_p,
save_expr = *expr_p;
/* Die, die, die, my darling. */
- if (error_operand_p (save_expr))
+ if (error_operand_p (save_expr)
+ /* The above strip useless type conversion might not strip out
+ a conversion from an error so handle that case here. */
+ || (TREE_CODE (save_expr) == NON_LVALUE_EXPR
+ && error_operand_p (TREE_OPERAND (save_expr, 0))))
{
ret = GS_ERROR;
break;
```
I will submit it tomorrow once I test it fully.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c/110682] [12/13/14 Regression] ICE: internal compiler error: in gimplify_expr after error
2023-07-16 10:57 [Bug c/110682] New: GCC, ICE: internal compiler error: in gimplify_expr, at gimplify.cc:16771 141242068 at smail dot nju.edu.cn
` (4 preceding siblings ...)
2024-03-08 3:43 ` pinskia at gcc dot gnu.org
@ 2024-03-12 13:24 ` jakub at gcc dot gnu.org
2024-03-23 5:51 ` pinskia at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2024-03-12 13:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110682
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P1 |P2
CC| |jakub at gcc dot gnu.org
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 12-13 has been released with this bug, so P2.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug c/110682] [12/13/14 Regression] ICE: internal compiler error: in gimplify_expr after error
2023-07-16 10:57 [Bug c/110682] New: GCC, ICE: internal compiler error: in gimplify_expr, at gimplify.cc:16771 141242068 at smail dot nju.edu.cn
` (5 preceding siblings ...)
2024-03-12 13:24 ` jakub at gcc dot gnu.org
@ 2024-03-23 5:51 ` pinskia at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-03-23 5:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110682
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Patch posted:
https://gcc.gnu.org/pipermail/gcc-patches/2024-March/648270.html
^ permalink raw reply [flat|nested] 8+ messages in thread
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2023-07-16 10:57 [Bug c/110682] New: GCC, ICE: internal compiler error: in gimplify_expr, at gimplify.cc:16771 141242068 at smail dot nju.edu.cn
2023-11-13 19:17 ` [Bug c/110682] [12/13/14 Regression] ICE: internal compiler error: in gimplify_expr after error pinskia at gcc dot gnu.org
2023-12-05 22:58 ` pinskia at gcc dot gnu.org
2024-03-07 23:29 ` law at gcc dot gnu.org
2024-03-07 23:31 ` pinskia at gcc dot gnu.org
2024-03-08 3:43 ` pinskia at gcc dot gnu.org
2024-03-12 13:24 ` jakub at gcc dot gnu.org
2024-03-23 5:51 ` pinskia at gcc dot gnu.org
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