Make the function begin label start after ther data pointer.
The address of data frame for function can be obtained by subtracting 2 from the function begin label.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69801 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PIC16/PIC16ISelLowering.cpp b/lib/Target/PIC16/PIC16ISelLowering.cpp
index dec92ad..605fbe9 100644
--- a/lib/Target/PIC16/PIC16ISelLowering.cpp
+++ b/lib/Target/PIC16/PIC16ISelLowering.cpp
@@ -1155,10 +1155,12 @@
SDValue Lo = Callee.getOperand(0);
SDValue Hi = Callee.getOperand(1);
+ SDValue Data_Lo, Data_Hi;
SDVTList Tys = DAG.getVTList(MVT::i8, MVT::Other, MVT::Flag);
Hi = DAG.getNode(PIC16ISD::MTPCLATH, dl, MVT::i8, Hi);
- // Use the Lo part as is and make CALLW
- Callee = DAG.getNode(PIC16ISD::PIC16Connect, dl, MVT::i8, Lo, Hi);
+ // Subtract 2 from Lo to get the Lower part of DataAddress.
+ Data_Lo = DAG.getNode(ISD::SUB, dl, MVT::i8, Lo, DAG.getConstant(2, MVT::i8));
+ Callee = DAG.getNode(PIC16ISD::PIC16Connect, dl, MVT::i8, Data_Lo, Hi);
SDValue Call = DAG.getNode(PIC16ISD::CALLW, dl, Tys, Chain, Callee,
OperFlag);
Chain = getChain(Call);
@@ -1176,10 +1178,10 @@
Chain = getChain(SeqStart);
OperFlag = getOutFlag(SeqStart); // To manage the data dependency
- // Add 1 to Lo part for the second code word.
- Lo = DAG.getNode(ISD::ADD, dl, MVT::i8, Lo, DAG.getConstant(1, MVT::i8));
+ // Subtract 1 to Lo part for the second code word.
+ Data_Lo = DAG.getNode(ISD::SUB, dl, MVT::i8, Lo, DAG.getConstant(1, MVT::i8));
// Use new Lo to make another CALLW
- Callee = DAG.getNode(PIC16ISD::PIC16Connect, dl, MVT::i8, Lo, Hi);
+ Callee = DAG.getNode(PIC16ISD::PIC16Connect, dl, MVT::i8, Data_Lo, Hi);
Call = DAG.getNode(PIC16ISD::CALLW, dl, Tys, Chain, Callee, OperFlag);
Chain = getChain(Call);
OperFlag = getOutFlag(Call);
@@ -1266,8 +1268,8 @@
SDValue CodeAddr_Lo = Callee.getOperand(0);
SDValue CodeAddr_Hi = Callee.getOperand(1);
- CodeAddr_Lo = DAG.getNode(ISD::ADD, dl, MVT::i8, CodeAddr_Lo,
- DAG.getConstant(2, MVT::i8));
+ /*CodeAddr_Lo = DAG.getNode(ISD::ADD, dl, MVT::i8, CodeAddr_Lo,
+ DAG.getConstant(2, MVT::i8));*/
// move Hi part in PCLATH
CodeAddr_Hi = DAG.getNode(PIC16ISD::MTPCLATH, dl, MVT::i8, CodeAddr_Hi);