https://bugs.kde.org/show_bug.cgi?id=476978
Bug ID: 476978
Summary: [SSE4.1] missing support for PMAXUD
Classification: Developer tools
Product: valgrind
Version: 3.20.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: vex
Assignee: jsew...@acm.org
Reporter: muel...@kde.org
Target Milestone: ---
SUMMARY
[ 94s] vex x86->IR: unhandled instruction bytes: 0x66 0xF 0x38 0x3F
[ 94s] ==12135== valgrind: Unrecognised instruction at address 0x1f548b.
[ 94s] ==12135== at 0x1F548B: Perl_safesysmalloc (in /usr/bin/perl)
[ 94s] ==12135== by 0x229AD2: Perl_more_bodies (in /usr/bin/perl)
[ 94s] ==12135== by 0x22D9A6: ??? (in /usr/bin/perl)
[ 94s] ==12135== by 0x14F57A: perl_construct (in /usr/bin/perl)
[ 94s] ==12135== by 0x12C520: main (in /usr/bin/perl)
[ 94s] ==12135== Your program just tried to execute an instruction that
Valgrind
[ 94s] ==12135== did not recognise. There are two possible reasons for this.
[ 94s] ==12135== 1. Your program has a bug and erroneously jumped to a
non-code
[ 94s] ==12135== location. If you are running Memcheck and you just saw a
[ 94s] ==12135== warning about a bad jump, it's probably your program's
fault.
[ 94s] ==12135== 2. The instruction is legitimate but Valgrind doesn't handle
it,
[ 94s] ==12135== i.e. it's Valgrind's fault. If you think this is the
case or
[ 94s] ==12135== you are not sure, please let us know and we'll try to fix
it.
[ 94s] ==12135== Either way, Valgrind will now raise a SIGILL signal which
will
[ 94s] ==12135== probably kill your program.
[ 94s] ==12135==
[ 94s] ==12135== Process terminating with default action of signal 4
(SIGILL): dumping core
[ 94s] ==12135== Illegal opcode at address 0x1F548B
[ 94s] ==12135== at 0x1F548B: Perl_safesysmalloc (in /usr/bin/perl)
[ 94s] ==12135== by 0x229AD2: Perl_more_bodies (in /usr/bin/perl)
[ 94s] ==12135== by 0x22D9A6: ??? (in /usr/bin/perl)
[ 94s] ==12135== by 0x14F57A: perl_construct (in /usr/bin/perl)
[ 94s] ==12135== by 0x12C520: main (in /usr/bin/perl)
SOFTWARE/OS VERSIONS
gcc 13.2 or later seems to be generating those instructions now for x86 with
sse4 enabled
ADDITIONAL INFORMATION
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