[Libre-soc-bugs] [Bug 671] convert spec pseudocode to use XLEN width

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=671

--- Comment #34 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
a new test in power_pseudo.py

     [0]*16]

produces this:

Module(body=[Expr(value=Call(func=Name(id='concat', ctx=Load()),
args=[Constant(value=0)], keywords=[keyword(arg='repeat',
value=Constant(value=16))]))])
astor dump
Module(
    body=[
        Expr(
            value=Call(func=Name(id='concat'),
                args=[Constant(value=0)],
                keywords=[keyword(arg='repeat', value=Constant(value=16))]))])
to source
concat(0, repeat=16)


where the following:

     [0]*(XLEN-16)

instead produces this:

Module(body=[BinOp(left=List(elts=[Constant(value=0)], ctx=Load()), op=Mult(),
right=BinOp(left=Name(id='XLEN', ctx=Load()), op=Sub(),
right=Constant(value=16)))])
astor dump
Module(
    body=[
        BinOp(left=List(elts=[Constant(value=0)]),
            op=Mult,
            right=BinOp(left=Name(id='XLEN'), op=Sub,
right=Constant(value=16)))])
to source
([0] * (XLEN - 16))


this is a bug.

the source code generated should have been:

concat(0, repeat=XLEN-16)

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