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Added X86 isel debugging stuff.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26110 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-02-10 22:24:32 +00:00
parent ebccc040e5
commit f597dc78f8
1 changed files with 63 additions and 0 deletions
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63
lib/Target/X86/X86ISelDAGToDAG.cpp
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@ -12,6 +12,7 @@
//
//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "isel"
#include "X86.h"
#include "X86InstrBuilder.h"
#include "X86RegisterInfo.h"
@ -143,6 +144,8 @@ namespace {
inline SDOperand getI32Imm(unsigned Imm) {
return CurDAG->getTargetConstant(Imm, MVT::i32);
}
std::string Indent;
};
}
@ -153,7 +156,14 @@ void X86DAGToDAGISel::InstructionSelectBasicBlock(SelectionDAG &DAG) {
MachineFunction::iterator FirstMBB = BB;
// Codegen the basic block.
#ifndef NDEBUG
DEBUG(std::cerr << "===== Instruction selection begins:\n");
Indent = "";
#endif
DAG.setRoot(SelectRoot(DAG.getRoot()));
#ifndef NDEBUG
DEBUG(std::cerr << "===== Instruction selection ends:\n");
#endif
CodeGenMap.clear();
DAG.RemoveDeadNodes();
@ -451,14 +461,37 @@ void X86DAGToDAGISel::Select(SDOperand &Result, SDOperand N) {
unsigned Opc, MOpc;
unsigned Opcode = Node->getOpcode();
#ifndef NDEBUG
std::string IndentSave = Indent;
DEBUG(std::cerr << Indent);
DEBUG(std::cerr << "Selecting: ");
DEBUG(Node->dump(CurDAG));
DEBUG(std::cerr << "\n");
Indent += " ";
#endif
if (Opcode >= ISD::BUILTIN_OP_END && Opcode < X86ISD::FIRST_NUMBER) {
Result = N;
#ifndef NDEBUG
DEBUG(std::cerr << Indent);
DEBUG(std::cerr << "== ");
DEBUG(Node->dump(CurDAG));
DEBUG(std::cerr << "\n");
Indent = IndentSave;
#endif
return; // Already selected.
}
std::map<SDOperand, SDOperand>::iterator CGMI = CodeGenMap.find(N);
if (CGMI != CodeGenMap.end()) {
Result = CGMI->second;
#ifndef NDEBUG
DEBUG(std::cerr << Indent);
DEBUG(std::cerr << "== ");
DEBUG(Result.Val->dump(CurDAG));
DEBUG(std::cerr << "\n");
Indent = IndentSave;
#endif
return;
}
@ -539,6 +572,13 @@ void X86DAGToDAGISel::Select(SDOperand &Result, SDOperand N) {
AddHandleReplacement(N1.Val, 1, Result.Val, 1);
}
#ifndef NDEBUG
DEBUG(std::cerr << Indent);
DEBUG(std::cerr << "== ");
DEBUG(Result.Val->dump(CurDAG));
DEBUG(std::cerr << "\n");
Indent = IndentSave;
#endif
return;
}
@ -639,6 +679,14 @@ void X86DAGToDAGISel::Select(SDOperand &Result, SDOperand N) {
CodeGenMap[N1.getValue(1)] = Result.getValue(1);
AddHandleReplacement(N1.Val, 1, Result.Val, 1);
}
#ifndef NDEBUG
DEBUG(std::cerr << Indent);
DEBUG(std::cerr << "== ");
DEBUG(Result.Val->dump(CurDAG));
DEBUG(std::cerr << "\n");
Indent = IndentSave;
#endif
return;
}
@ -670,11 +718,26 @@ void X86DAGToDAGISel::Select(SDOperand &Result, SDOperand N) {
else
Result = CodeGenMap[N] =
SDOperand(CurDAG->getTargetNode(Opc, VT, Result), 0);
#ifndef NDEBUG
DEBUG(std::cerr << Indent);
DEBUG(std::cerr << "== ");
DEBUG(Result.Val->dump(CurDAG));
DEBUG(std::cerr << "\n");
Indent = IndentSave;
#endif
return;
}
}
SelectCode(Result, N);
#ifndef NDEBUG
DEBUG(std::cerr << Indent);
DEBUG(std::cerr << "=> ");
DEBUG(Result.Val->dump(CurDAG));
DEBUG(std::cerr << "\n");
Indent = IndentSave;
#endif
}
/// createX86ISelDag - This pass converts a legalized DAG into a