Displaying 2 results from an estimated 2 matches for "branch_nzero".
2008 Sep 18
0
[LLVMdev] Custom Opcodes versus built-in opcodes
...> What I want to happen is to take the branch w/ condition codes and convert
> it into a comparison and then a branch based on the result to the BasicBlock
> in the Jump SDValue. What I expect to occur after this function returns is
> for the SDValue that I created to be matched with my BRANCH_NZERO
> instruction in my InstrInfo.td file. Instead what is occurring is that it is
> mapping it for some reason to the FRAMEADDR built-in instruction and running
> LowerFRAMEADDR. Both instructions are enumerated to the same value, but they
> are part of different namespaces.
>
That'...
2008 Sep 18
4
[LLVMdev] Custom Opcodes versus built-in opcodes
...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 want to happen is to take the branch w/ condition codes and
convert it into a comparison an...