search for: cmpopcode

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Did you mean: ccopcode
2008 Nov 18
1
[LLVMdev] 32 bit boolean results
You can tell LLVM that you have "sign extended" setCC results (all ones). Dan On Nov 18, 2008, at 5:33 PM, Eli Friedman wrote: > On Tue, Nov 18, 2008 at 1:56 PM, Villmow, Micah > <Micah.Villmow at amd.com> wrote: >> The IR produces correct results, but my backend does not and the >> only thing >> I can think of is that the IR is treating the
2008 Sep 18
4
[LLVMdev] Custom Opcodes versus built-in opcodes
...CC(SDValue Op, SelectionDAG& DAG){ MVT VT = Op.getValueType(); SDValue Chain = Op.getOperand(0); SDValue LHS = Op.getOperand(2); SDValue RHS = Op.getOperand(3); SDValue Jump = Op.getOperand(4); bool logical_nz = getLogicalNZ(cmpOpcode); SDValue CmpValue; unsigned int brOpcode = CUSTOM::BRANCH_NZERO; CmpValue = DAG.getNode(CUSTOM::CMP, LHS.getValueType(), Chain, DAG.getConstant(cmpOpcode, MVT::i32), LHS, RHS); return DAG.getNode(brOpcode, VT, Chain, Jump, CmpValue); } What I...