Changes in directory llvm/lib/Target/SparcV8:
SparcV8ISelDAGToDAG.cpp updated: 1.50 -> 1.51 --- Log message: Implement DYNAMIC_STACKALLOC for V8 --- Diffs of the changes: (+18 -1) SparcV8ISelDAGToDAG.cpp | 19 ++++++++++++++++++- 1 files changed, 18 insertions(+), 1 deletion(-) Index: llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp diff -u llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp:1.50 llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp:1.51 --- llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp:1.50 Fri Jan 13 21:14:10 2006 +++ llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp Sun Jan 15 02:43:57 2006 @@ -136,6 +136,8 @@ setOperationAction(ISD::SELECT_CC, MVT::f32, Custom); setOperationAction(ISD::SELECT_CC, MVT::f64, Custom); + setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32, Custom); + // V8 has no intrinsics for these particular operations. setOperationAction(ISD::MEMMOVE, MVT::Other, Expand); setOperationAction(ISD::MEMSET, MVT::Other, Expand); @@ -699,7 +701,22 @@ return DAG.getNode(Opc, TrueVal.getValueType(), TrueVal, FalseVal, DAG.getConstant(CC, MVT::i32), CompareFlag); } - } + case ISD::DYNAMIC_STACKALLOC: { + SDOperand Chain = Op.getOperand(0); + SDOperand Size = Op.getOperand(1); + + SDOperand SP = DAG.getCopyFromReg(Chain, V8::O6, MVT::i32); + Chain = SP.getValue(1); + SDOperand Res = DAG.getNode(ISD::SUB, MVT::i32, SP, Size); + Chain = DAG.getCopyToReg(Chain, V8::O6, Res); + + std::vector<MVT::ValueType> VTs(Op.Val->value_begin(), Op.Val->value_end()); + std::vector<SDOperand> Ops; + Ops.push_back(Res); + Ops.push_back(Chain); + return DAG.getNode(ISD::MERGE_VALUES, VTs, Ops); + } + } } MachineBasicBlock * _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits