https://bugs.kde.org/show_bug.cgi?id=447991
Bug ID: 447991
Summary: s390x: Valgrind indicates illegal instruction on wflrx
Product: valgrind
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: vex
Assignee: jsew...@acm.org
Reporter: ar...@linux.ibm.com
Target Milestone: ---
In a Fedora build, it has been seen that Valgrind crashes with illegal
instruction when trying to execute the WFLRX instruction:
vex s390->IR: specification exception: E700 0008 40C5
==4036598== valgrind: Unrecognised instruction at address ...
See the original bug report:
https://bugzilla.redhat.com/show_bug.cgi?id=2035807
WFLRX is a variant of VFLR (vector FP load rounded); it rounds the source
vector's first element down from extended format to long format. This variant
was introduced with z14.
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