search for: truewhentru

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2010 Oct 04
2
[LLVMdev] Illegal optimization in LLVM 2.8 during SelectionDAG
..."and" with this truncate call, which leads to your troubles later on. It would seem that the truncate is created by: TargetLowering::SimplifySetCC ... if (N0.getOpcode() == ISD::SETCC && isTypeLegal(VT) && VT.bitsLE(N0.getValueType())) { bool TrueWhenTrue = (Cond == ISD::SETEQ) ^ (N1C->getAPIntValue() != 1); if (TrueWhenTrue) return DAG.getNode(ISD::TRUNCATE, dl, VT, N0); // Invert the condition. ISD::CondCode CC = cast<CondCodeSDNode>(N0.getOperand(2))->get(); CC = ISD::getSetCCInverse(C...
2010 Oct 04
0
[LLVMdev] Illegal optimization in LLVM 2.8 during SelectionDAG
...to your troubles later on. > > It would seem that the truncate is created by: > > TargetLowering::SimplifySetCC > > ... > > > if (N0.getOpcode() == ISD::SETCC && > isTypeLegal(VT) && VT.bitsLE(N0.getValueType())) { > bool TrueWhenTrue = (Cond == ISD::SETEQ) ^ > (N1C->getAPIntValue() != 1); > if (TrueWhenTrue) > return DAG.getNode(ISD::TRUNCATE, dl, VT, N0); > > // Invert the condition. > ISD::CondCode CC = cast<CondCodeSDNode>(N0.getOperand(2))->get(); >...
2010 Oct 01
0
[LLVMdev] Illegal optimization in LLVM 2.8 during SelectionDAG? (Re: comparison pattern trouble - might be a bug in LLVM 2.8?)
On Sep 30, 2010, at 2:13 AM, Heikki Kultala wrote: > Bill Wendling wrote: >> On Sep 29, 2010, at 12:36 AM, Heikki Kultala wrote: >> >>> On 29 Sep 2010, at 06:25, Heikki Kultala wrote: >>> >>>> Our architecture has 1-bit boolean predicate registers. >>>> >>>> I've defined comparison >>>> >>>> def
2010 Sep 30
4
[LLVMdev] Illegal optimization in LLVM 2.8 during SelectionDAG? (Re: comparison pattern trouble - might be a bug in LLVM 2.8?)
Bill Wendling wrote: > On Sep 29, 2010, at 12:36 AM, Heikki Kultala wrote: > >> On 29 Sep 2010, at 06:25, Heikki Kultala wrote: >> >>> Our architecture has 1-bit boolean predicate registers. >>> >>> I've defined comparison >>> >>> def NErrb : InstTCE<(outs I1Regs:$op3), (ins I32Regs:$op1,I32Regs:$op2), "", [(set