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showinst
2011 Jan 29
3
[LLVMdev] Possible CellSPU Bug?
...ich is true in
the sense of vector bit size, and true in the sense of vector element
size. To me, a sign extension from i32 to i16 makes no sense.
>From the .td file, it looks as if src and dest types have been swapped:
class XSHWVecInst<ValueType in_vectype, ValueType out_vectype>:
XSHWInst<(outs VECREG:$rDest), (ins VECREG:$rSrc),
[(set (out_vectype VECREG:$rDest),
(sext (in_vectype VECREG:$rSrc)))]>;
multiclass ExtendHalfwordWord {
def v4i32: XSHWVecInst<v4i32, v8i16>;
The multiclass name leads me to believe this was supposed to sign e...