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