https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114566
Bug ID: 114566
Summary: Misaligned vmovaps when compiling libvorbis for znver4
Product: gcc
Version: 13.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: yshuiv7 at gmail dot com
Target Milestone: ---
Haven't tried to minimize it yet, but here is how to reproduce it:
1. Download libvorbis 1.3.7 source: https://github.com/xiph/vorbis/tree/v1.3.7
2. Configure it:
cmake -B build -DCMAKE_C_FLAGS="-march=znver4 -mtune=znver4"
-DCMAKE_CXX_FLAGS="-march=znver4 -mtune=znver4" -DCMAKE_BUILD_TYPE=Release .
3. Run tests:
make -C build test
Stack trace:
#0 0x0000000000410d2e in setup_tone_curves
(curveatt_dB=curveatt_dB@entry=0x4e1834, binHz=binHz@entry=86.1328125,
n=n@entry=256, center_boost=-1.00000203, center_decay_rate=<optimized out>)
at /tmp/vorbis/lib/psy.c:129
#1 0x0000000000413b24 in _vp_psy_init (p=0x4fe8c0, vi=<optimized out>,
gi=gi@entry=0x4e0be0, n=256,
rate=<optimized out>) at /tmp/vorbis/lib/psy.c:326
#2 0x000000000040a7b5 in _vds_shared_init (v=v@entry=0x7fffffffb370,
vi=vi@entry=0x7fffffffb330, encp=encp@entry=1)
at /tmp/vorbis/lib/block.c:225
#3 0x000000000040a93f in vorbis_analysis_init (v=v@entry=0x7fffffffb370,
vi=vi@entry=0x7fffffffb330)
at /tmp/vorbis/lib/block.c:298
#4 0x0000000000404ad2 in write_vorbis_data_or_die (
filename=filename@entry=0x7fffffffb700 "vorbis_1ch_q-0.5_44100.ogg",
srate=srate@entry=44100,
q=q@entry=-0.0500000007, data=data@entry=0x4dc080 <data_out>,
count=count@entry=2048, ch=ch@entry=1)
at /tmp/vorbis/test/write_read.c:61
#5 0x000000000040456d in main () at /tmp/vorbis/test/test.c:58
Relevant part of the code:
0x0000000000410cee <+1854>: add $0xe0,%rdx
0x0000000000410cf5 <+1861>: vmovups %zmm17,-0xe0(%rdx)
0x0000000000410cff <+1871>: vaddps -0xa0(%rdx),%zmm7,%zmm17
0x0000000000410d09 <+1881>: vmovups %zmm17,-0xa0(%rdx)
0x0000000000410d13 <+1891>: vaddps -0x60(%rdx),%zmm6,%zmm17
0x0000000000410d1d <+1901>: vmovups %zmm17,-0x60(%rdx)
0x0000000000410d27 <+1911>: vaddps -0x20(%rdx),%ymm0,%ymm17
=> 0x0000000000410d2e <+1918>: vmovaps %ymm17,-0x20(%rdx)
$rdx is 0x7fffffff3a10
