https://bugs.kde.org/show_bug.cgi?id=475402
Bug ID: 475402
Summary: vex amd64->IR: unhandled instruction bytes: 0xC5 0x79
0xD6 0xC0 0x4C 0x8D 0x9C 0x24 0xA0 0x2
Classification: Developer tools
Product: valgrind
Version: 3.22 GIT
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: memcheck
Assignee: jsew...@acm.org
Reporter: julien.jo...@gmx.fr
Target Milestone: ---
When running my program with Valgrind & memcheck, it fails with an unhandled
instruction message:
vex amd64->IR: unhandled instruction bytes: 0xC5 0x79 0xD6 0xC0 0x4C 0x8D 0x9C
0x24 0xA0 0x2
vex amd64->IR: REX=0 REX.W=0 REX.R=1 REX.X=0 REX.B=0
vex amd64->IR: VEX=1 VEX.L=0 VEX.nVVVV=0x0 ESC=0F
vex amd64->IR: PFX.66=1 PFX.F2=0 PFX.F3=0
==137781== valgrind: Unrecognised instruction at address 0x4cf081.
==137781== at 0x4CF081: _mm_set_epi64x (emmintrin.h:595)
==137781== by 0x4CF081: _mm_set_epi64 (emmintrin.h:601)
==137781== by 0x4CF081: _mm_loadl_epi64 (emmintrin.h:712)
It occurs with Valgrind 3.22 built from source (commit
97508f5561756a43f054c1d8e06c3e318124c9c3) but also with 3.19 from Ubuntu
repositories.
The program is compiled using GCC 13.1.0, and executed on the same machine.
Passing -v shows: Arch and hwcaps: AMD64, LittleEndian,
amd64-cx16-lzcnt-rdtscp-sse3-ssse3-avx-avx2-bmi-f16c-rdrand-rdseed.
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