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From: "pinskia at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug compile/31397] New: arrays with structs with arrays gets the
 wrong alignment
Date: Sun, 18 Feb 2024 02:57:10 +0000
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X-Bugzilla-Component: compile
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D31397

            Bug ID: 31397
           Summary: arrays with structs with arrays gets the wrong
                    alignment
           Product: gdb
           Version: unknown
            Status: NEW
          Severity: normal
          Priority: P2
         Component: compile
          Assignee: unassigned at sourceware dot org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---

```
gcc src.c -gdwarf-5 -o a.out && gdb a.out

(gdb) b 13
Breakpoint 1 at 0x1170: file src.c, line 13.
(gdb) run
Starting program: a.out=20

(gdb) expr z[0]._[0] =3D 1
gdb command line:1:1: error: size of array element is not a multiple of its
alignment
Compilation failed.
(gdb) expr y[0]._[0] =3D 1
(gdb) expr x[0]._[0] =3D 1
gdb command line:1:1: error: alignment of array elements is greater than
element size
Compilation failed.
```

Running with the trunk gcc and the trunk gdb here and this fails.

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