[Libre-soc-bugs] [Bug 911] svshape2 instruction (with offsets)

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=911

Luke Kenneth Casson Leighton <lkcl at lkcl.net> changed:

           What    |Removed                     |Added
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                 CC|                            |ghostmansd at gmail.com

--- Comment #3 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
there is a gotcha with the instruction database, the entries needed
for using two of the SVRM 4-bit field encodings for a new instruction
means that *14* lines in the minor_22.csv file are needed:

0000---00011,OP_SVSHAPE
0001---00011,OP_SVSHAPE
...
...

which is exactly what was just "fixed" for rlwimi etc.

the proper fix therefore is to allow an instruction to match
against a *list* of integer patterns, not just one.
i will track down the lines in openpower-isa in the next post

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