Displaying 3 results from an estimated 3 matches for "abd_noncommutative".
2017 Feb 15
5
Unsigned int displaying as negative
Where does the unsignedSub come from?
On 2017-02-15 20:38, Ryan Taylor wrote:
> Sorry, it should be:
>
> defm SUB16u_ : ABD_NonCommutative<"sub16u", unsignedSub, LOADRegs,
> GPRRegs, DSTRegs, i16, i16, i16, uimm16, immZExt16x>;
>
> On Wed, Feb 15, 2017 at 2:37 PM, Ryan Taylor <ryta1203 at gmail.com>
> wrote:
>
>> I see. If I put simm16 and immSExt16x in place of uimm16 and
>> immZEx...
2017 Feb 15
4
Unsigned int displaying as negative
...m16 : Operand<i16> {
let PrintMethod = "printUnsignedImm";
let OperandType = "OPERAND_IMMEDIATE";
}
def immSExt16x : ImmLeaf<i16, [{ return isInt<16>(Imm); }]>;
def immZExt16x : ImmLeaf<i16, [{ return isUInt<16>(Imm); }]>;
defm SUB16u_ : ABD_NonCommutative<"sub16u", unsignedSub, LOADRegs,
GPRRegs, DSTRegs, i16, i16, i16, simm16, immZExt16x>;
multiclass ABD_NonCommutative<string asmstr, SDPatternOperator OpNode,
RegisterClass srcAReg, RegisterClass srcBReg,
RegisterClass dstReg, ValueType srcAType, ValueType
srcBType...
2017 Feb 15
2
Unsigned int displaying as negative
Thanks for your reply.
We are propagating sign info to tablegen currently using
BinaryWithFlagsSDNode.Flags.hasNoSignedWrap atm.
I imagine (I have not looked) they are printed according to instruction in
AsmPrinter.cpp (pure speculation).
I'm still confused as to why 0x7FFF is ok to match 16 bit int but not
0x8000?
Thanks.
On Wed, Feb 15, 2017 at 1:44 PM, Manuel Jacob <me at