Changes in directory llvm/lib/Target/SparcV8:
SparcV8ISelDAGToDAG.cpp updated: 1.51 -> 1.52
---
Log message:
Have legalize take care of DYNAMIC_STACKALLOC for us, implement
llvm.stacksave/stackrestore.
---
Diffs of the changes: (+4 -18)
SparcV8ISelDAGToDAG.cpp | 22 ++++------------------
1 files changed, 4 insertions(+), 18 deletions(-)
Index: llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp
diff -u llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp:1.51
llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp:1.52
--- llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp:1.51 Sun Jan 15
02:43:57 2006
+++ llvm/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp Sun Jan 15 02:55:25 2006
@@ -136,8 +136,6 @@
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);
@@ -163,9 +161,12 @@
setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand);
setOperationAction(ISD::DEBUG_LABEL, MVT::Other, Expand);
- // Not implemented yet.
+ // Expand these to their default code.
setOperationAction(ISD::STACKSAVE, MVT::Other, Expand);
setOperationAction(ISD::STACKRESTORE, MVT::Other, Expand);
+ setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32, Expand);
+
+ setStackPointerRegisterToSaveRestore(V8::O6);
computeRegisterProperties();
}
@@ -701,21 +702,6 @@
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);
- }
}
}
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