https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119507
Bug ID: 119507
Summary: The function order affects the names of the
gcc_except_table sections in the assembly code.
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: chenglulu at loongson dot cn
Target Milestone: ---
The function order affects the names of the gcc_except_table sections in the
assembly code.
test.cc
```
int another_func_with_exception() { try { throw 1; } catch (int) { return 1; }
return 0; }
inline int comdat() { try { throw 1; } catch (int) { return 1; } return 0; }
int foo() { return comdat(); }
```
$ g++ test.cc -o test.s -S
This will generate two gcc_except_table sections.
```
.globl _Z27another_func_with_exceptionv
.type _Z27another_func_with_exceptionv, @function
_Z27another_func_with_exceptionv:
...
.LFE0:
.globl __gxx_personality_v0
.section .gcc_except_table,"a",@progbits
.align 4
```
and
```
.weak _Z6comdatv
.type _Z6comdatv, @function
_Z6comdatv:
...
.LFE1:
.section .gcc_except_table
.align 4
```
However, when I swap the writing order of another_func_with_exception and
comdat,
the following is generated:
```
.type _Z6comdatv, @function
_Z6comdatv:
.LFB0:
...
.LFE0:
.globl __gxx_personality_v0
.section
.gcc_except_table._Z6comdatv,"aG",@progbits,_Z6comdatv,comdat
.align 4
```
and
```
.type _Z27another_func_with_exceptionv, @function
_Z27another_func_with_exceptionv:
...
.LFE1:
.section .gcc_except_table,"a",@progbits
.align 4
```
The name of the gcc_except_table generated by the function comdat has changed.
