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Added X86 isel debugging stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26110 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -12,6 +12,7 @@
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//
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//===----------------------------------------------------------------------===//
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#define DEBUG_TYPE "isel"
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#include "X86.h"
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#include "X86InstrBuilder.h"
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#include "X86RegisterInfo.h"
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@ -143,6 +144,8 @@ namespace {
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inline SDOperand getI32Imm(unsigned Imm) {
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return CurDAG->getTargetConstant(Imm, MVT::i32);
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}
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std::string Indent;
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};
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}
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@ -153,7 +156,14 @@ void X86DAGToDAGISel::InstructionSelectBasicBlock(SelectionDAG &DAG) {
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MachineFunction::iterator FirstMBB = BB;
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// Codegen the basic block.
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#ifndef NDEBUG
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DEBUG(std::cerr << "===== Instruction selection begins:\n");
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Indent = "";
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#endif
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DAG.setRoot(SelectRoot(DAG.getRoot()));
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#ifndef NDEBUG
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DEBUG(std::cerr << "===== Instruction selection ends:\n");
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#endif
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CodeGenMap.clear();
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DAG.RemoveDeadNodes();
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@ -451,14 +461,37 @@ void X86DAGToDAGISel::Select(SDOperand &Result, SDOperand N) {
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unsigned Opc, MOpc;
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unsigned Opcode = Node->getOpcode();
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#ifndef NDEBUG
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std::string IndentSave = Indent;
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DEBUG(std::cerr << Indent);
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DEBUG(std::cerr << "Selecting: ");
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DEBUG(Node->dump(CurDAG));
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DEBUG(std::cerr << "\n");
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Indent += " ";
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#endif
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if (Opcode >= ISD::BUILTIN_OP_END && Opcode < X86ISD::FIRST_NUMBER) {
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Result = N;
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#ifndef NDEBUG
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DEBUG(std::cerr << Indent);
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DEBUG(std::cerr << "== ");
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DEBUG(Node->dump(CurDAG));
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DEBUG(std::cerr << "\n");
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Indent = IndentSave;
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#endif
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return; // Already selected.
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}
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std::map<SDOperand, SDOperand>::iterator CGMI = CodeGenMap.find(N);
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if (CGMI != CodeGenMap.end()) {
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Result = CGMI->second;
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#ifndef NDEBUG
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DEBUG(std::cerr << Indent);
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DEBUG(std::cerr << "== ");
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DEBUG(Result.Val->dump(CurDAG));
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DEBUG(std::cerr << "\n");
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Indent = IndentSave;
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#endif
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return;
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}
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@ -539,6 +572,13 @@ void X86DAGToDAGISel::Select(SDOperand &Result, SDOperand N) {
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AddHandleReplacement(N1.Val, 1, Result.Val, 1);
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}
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#ifndef NDEBUG
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DEBUG(std::cerr << Indent);
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DEBUG(std::cerr << "== ");
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DEBUG(Result.Val->dump(CurDAG));
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DEBUG(std::cerr << "\n");
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Indent = IndentSave;
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#endif
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return;
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}
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@ -639,6 +679,14 @@ void X86DAGToDAGISel::Select(SDOperand &Result, SDOperand N) {
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CodeGenMap[N1.getValue(1)] = Result.getValue(1);
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AddHandleReplacement(N1.Val, 1, Result.Val, 1);
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}
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#ifndef NDEBUG
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DEBUG(std::cerr << Indent);
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DEBUG(std::cerr << "== ");
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DEBUG(Result.Val->dump(CurDAG));
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DEBUG(std::cerr << "\n");
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Indent = IndentSave;
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#endif
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return;
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}
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@ -670,11 +718,26 @@ void X86DAGToDAGISel::Select(SDOperand &Result, SDOperand N) {
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else
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Result = CodeGenMap[N] =
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SDOperand(CurDAG->getTargetNode(Opc, VT, Result), 0);
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#ifndef NDEBUG
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DEBUG(std::cerr << Indent);
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DEBUG(std::cerr << "== ");
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DEBUG(Result.Val->dump(CurDAG));
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DEBUG(std::cerr << "\n");
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Indent = IndentSave;
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#endif
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return;
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}
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}
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SelectCode(Result, N);
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#ifndef NDEBUG
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DEBUG(std::cerr << Indent);
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DEBUG(std::cerr << "=> ");
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DEBUG(Result.Val->dump(CurDAG));
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DEBUG(std::cerr << "\n");
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Indent = IndentSave;
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#endif
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}
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/// createX86ISelDag - This pass converts a legalized DAG into a
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