* [statistics.cc] ICE in get_function_name with fortran test-case
@ 2022-07-07 10:43 Prathamesh Kulkarni
2022-07-07 11:44 ` Richard Biener
0 siblings, 1 reply; 2+ messages in thread
From: Prathamesh Kulkarni @ 2022-07-07 10:43 UTC (permalink / raw)
To: gcc Patches, Richard Biener
[-- Attachment #1: Type: text/plain, Size: 1274 bytes --]
Hi,
My recent commit to emit asm name with -fdump-statistics-asmname
caused following ICE
for attached fortran test case.
during IPA pass: icf
power.fppized.f90:6:26:
6 | END SUBROUTINE power_print
| ^
internal compiler error: Segmentation fault
0xfddc13 crash_signal
../../gcc/gcc/toplev.cc:322
0x7f6f940de51f ???
./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0xfc909d get_function_name
../../gcc/gcc/statistics.cc:124
0xfc929f statistics_fini_pass_2(statistics_counter**, void*)
../../gcc/gcc/statistics.cc:175
0xfc94a4 void hash_table<stats_counter_hasher, false,
xcallocator>::traverse_noresize<void*,
&(statistics_fini_pass_2(statistics_counter**, void*))>(void*)
../../gcc/gcc/hash-table.h:1084
0xfc94a4 statistics_fini_pass()
../../gcc/gcc/statistics.cc:219
0xef12bc execute_todo
../../gcc/gcc/passes.cc:2142
This happens because fn was passed NULL in get_function_name.
The patch adds a check to see if fn is NULL before checking for
DECL_ASSEMBLER_NAME_SET_P, which fixes the issue.
In case the fn is NULL, it calls function_name(NULL) as per old behavior,
which returns "(nofn)".
Bootstrap+tested on x86_64-linux-gnu.
OK to commit ?
Thanks,
Prathamesh
[-- Attachment #2: stats-fortran-bug-1.txt --]
[-- Type: text/plain, Size: 449 bytes --]
diff --git a/gcc/statistics.cc b/gcc/statistics.cc
index 6c21415bf65..01ad353e3a9 100644
--- a/gcc/statistics.cc
+++ b/gcc/statistics.cc
@@ -121,7 +121,7 @@ static const char *
get_function_name (struct function *fn)
{
if ((statistics_dump_flags & TDF_ASMNAME)
- && DECL_ASSEMBLER_NAME_SET_P (fn->decl))
+ && fn && DECL_ASSEMBLER_NAME_SET_P (fn->decl))
{
tree asmname = decl_assembler_name (fn->decl);
if (asmname)
[-- Attachment #3: power.fppized.f90 --]
[-- Type: application/octet-stream, Size: 157 bytes --]
MODULE power_mod
CONTAINS
SUBROUTINE power_print()
END SUBROUTINE power_print
SUBROUTINE power_interH()
END SUBROUTINE power_interH
END MODULE power_mod
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [statistics.cc] ICE in get_function_name with fortran test-case
2022-07-07 10:43 [statistics.cc] ICE in get_function_name with fortran test-case Prathamesh Kulkarni
@ 2022-07-07 11:44 ` Richard Biener
0 siblings, 0 replies; 2+ messages in thread
From: Richard Biener @ 2022-07-07 11:44 UTC (permalink / raw)
To: Prathamesh Kulkarni; +Cc: gcc Patches
On Thu, Jul 7, 2022 at 12:44 PM Prathamesh Kulkarni
<prathamesh.kulkarni@linaro.org> wrote:
>
> Hi,
> My recent commit to emit asm name with -fdump-statistics-asmname
> caused following ICE
> for attached fortran test case.
>
> during IPA pass: icf
> power.fppized.f90:6:26:
>
> 6 | END SUBROUTINE power_print
> | ^
> internal compiler error: Segmentation fault
> 0xfddc13 crash_signal
> ../../gcc/gcc/toplev.cc:322
> 0x7f6f940de51f ???
> ./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
> 0xfc909d get_function_name
> ../../gcc/gcc/statistics.cc:124
> 0xfc929f statistics_fini_pass_2(statistics_counter**, void*)
> ../../gcc/gcc/statistics.cc:175
> 0xfc94a4 void hash_table<stats_counter_hasher, false,
> xcallocator>::traverse_noresize<void*,
> &(statistics_fini_pass_2(statistics_counter**, void*))>(void*)
> ../../gcc/gcc/hash-table.h:1084
> 0xfc94a4 statistics_fini_pass()
> ../../gcc/gcc/statistics.cc:219
> 0xef12bc execute_todo
> ../../gcc/gcc/passes.cc:2142
>
> This happens because fn was passed NULL in get_function_name.
> The patch adds a check to see if fn is NULL before checking for
> DECL_ASSEMBLER_NAME_SET_P, which fixes the issue.
> In case the fn is NULL, it calls function_name(NULL) as per old behavior,
> which returns "(nofn)".
>
> Bootstrap+tested on x86_64-linux-gnu.
> OK to commit ?
OK
>
> Thanks,
> Prathamesh
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2022-07-07 11:44 ` Richard Biener
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