https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112526
Bug ID: 112526
Summary: [14 regression] Miscompilation of ffmpeg test for -m32
since r14-4968-g89e5d902fc55ad
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
CC: roger at nextmovesoftware dot com
Target Milestone: ---
I noticed earlier that ffmpeg's test suite started failing in the 'camellia'
test.
I've not dug into this yet other than bisecting to r14-4968-g89e5d902fc55ad.
Needs x86_64-pc-linux-gnu-gcc -m32 (not tried native 32-bit x86).
It fails as (the ref'd .err file is the same as the long output underneath it):
```
/var/tmp/portage/media-video/ffmpeg-6.0.1/work/ffmpeg-6.0.1/tests/fate-run.sh
fate-camellia "" ""
"/var/tmp/portage/media-video/ffmpeg-6.0.1/work/ffmpeg-6.0.1-abi_x86_32.x86"
'run libavutil/tests/camellia' 'n
ull' '' '' '1' '' '' '' '' '' '' '' '' '' ''
/var/tmp/portage/media-video/ffmpeg-6.0.1/work/ffmpeg-6.0.1-abi_x86_32.x86/libavutil/tests/camellia
Test camellia failed. Look at tests/data/fate/camellia.err for details.
0 67 d0
1 67 ad
2 31 5d
3 38 69
4 54 7e
5 96 27
6 69 89
7 73 81
8 08 a8
9 57 2b
10 06 24
11 56 09
12 48 44
13 ea f7
14 be 51
15 43 a1
0 01 bc
1 23 aa
2 45 43
3 67 36
4 89 51
5 ab e3
6 cd dd
7 ef fb
8 fe 55
9 dc 9f
10 ba f1
11 98 ea
12 76 f8
13 54 c5
14 32 c9
15 10 39
0 b4 cc
1 99 40
2 34 11
3 01 5a
4 b3 a7
5 e9 90
6 96 98
7 f8 b7
8 4e 34
9 e5 f2
10 ce c8
11 e7 1d
12 d7 b0
11 e7 1d
12 d7 b0
13 9b 4e
14 09 30
15 b9 a3
0 01 79
1 23 90
2 45 41
3 67 b1
4 89 95
5 ab 9b
6 cd 13
7 ef 21
8 fe 96
9 dc ac
10 ba 0b
11 98 4b
12 76 87
13 54 d4
14 32 80
15 10 07
0 9a 54
1 cc 2c
2 23 62
3 7d 5a
4 ff 33
5 16 61
6 d7 4e
7 6c c8
8 20 74
9 ef 34
10 7c e0
11 91 da
12 9e 75
13 3a ed
14 75 c5
15 09 d1
0 01 48
1 23 a8
2 45 0a
3 67 18
4 89 13
5 ab af
6 cd 69
7 ef 9a
8 fe 48
9 dc 0c
10 ba fe
11 98 94
12 76 9b
13 54 03
14 32 ba
15 10 3a
```
The large reproducer for now is:
```
git clone https://git.videolan.org/git/ffmpeg.git # also repro'd with 6.0.1
release
./configure --cc="gcc -m32" --disable-asm --disable-stripping
--extra-cflags="-march=znver2"
make -j$(nproc) V=1
make fate-camellia V=1
```
