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When running this test on a processor that supports AVX512 (AMD EPYC
9634) on Debian 12 bookwork (system compiler is gcc 12.2.0), I see:
continue^M
Continuing.^M
Process record does not support instruction bound.^M
Process record does not support instruction 0x62 at address 0x7ffff7f49b40.^M
Process record: failed to record execution log.^M
^M
Program stopped.^M
0x00007ffff7f49b40 in ?? () from /lib/x86_64-linux-gnu/libc.so.6^M
(gdb) FAIL: gdb.reverse/step-precsave.exp: run to end of main
The instruction at this address is:
0x00007ffff7f49b40: 62 e2 7d 48 7a c6 vpbroadcastb %esi,%zmm16
This seems like an AVX512 instruction (given the use of zmm16). Match
this byte value in order to produce a KFAIL.
Change-Id: I1d20357fa538ba60b9c537160acf511a37d751ee
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30807
Approved-By: Tom Tromey <tom@tromey.com>