https://bugs.kde.org/show_bug.cgi?id=422677
Bug ID: 422677
Summary: PPC sync instruction L field should only be 2 bits in
ISA 3.0
Product: valgrind
Version: 3.15 SVN
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: vex
Assignee: jsew...@acm.org
Reporter: c...@us.ibm.com
Target Milestone: ---
The L field for the sync instruction is being set to a 5 bit value. This
allows the user to set values greater then 3. The value is then flagged as
being out of bounds. The ISA 3.0 specifies the field is two bits wide. If a
user specifies a value greater then three only the lower two bits should be
used.
In ISA 3.1 the field is expanded to three bits wide. Support for this will
need to be added when the ISA 3.1 support is added for Power.
This bug exists in Valgrind 3.16 and earlier.
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