Revert "[DwarfDebug] Dump call site debug info"

A build failure was found on the SystemZ platform.

This reverts commit 9e7e73578e54cd22b3c7af4b54274d743b6607cc.

llvm-svn: 365886

1 files changed, 0 insertions, 40 deletions

diff --git a/llvm/lib/CodeGen/TargetInstrInfo.cpp b/llvm/lib/CodeGen/TargetInstrInfo.cpp
index f7f3e11f18a..868617ffe14 100644
--- a/llvm/lib/CodeGen/TargetInstrInfo.cpp
+++ b/llvm/lib/CodeGen/TargetInstrInfo.cpp
@@ -23,7 +23,6 @@
 #include "llvm/CodeGen/TargetRegisterInfo.h"
 #include "llvm/CodeGen/TargetSchedule.h"
 #include "llvm/IR/DataLayout.h"
-#include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCInstrItineraries.h"
 #include "llvm/Support/CommandLine.h"
@@ -1121,45 +1120,6 @@ bool TargetInstrInfo::hasLowDefLatency(const TargetSchedModel &SchedModel,
   return (DefCycle != -1 && DefCycle <= 1);
 }
 
-Optional<ParamLoadedValue>
-TargetInstrInfo::describeLoadedValue(const MachineInstr &MI) const {
-  const MachineOperand *Op = nullptr;
-  DIExpression *Expr = nullptr;
-
-  const MachineOperand *SrcRegOp, *DestRegOp;
-  const MachineFunction *MF = MI.getMF();
-  if (isCopyInstr(MI, SrcRegOp, DestRegOp)) {
-    Expr = DIExpression::get(MF->getFunction().getContext(), {});
-    Op = SrcRegOp;
-    return ParamLoadedValue(Op, Expr);
-  } else if (MI.isMoveImmediate()) {
-    Expr = DIExpression::get(MF->getFunction().getContext(), {});
-    Op = &MI.getOperand(1);
-    return ParamLoadedValue(Op, Expr);
-  } else if (MI.hasOneMemOperand()) {
-    int64_t Offset;
-    const auto &TRI = MF->getSubtarget().getRegisterInfo();
-    const auto &TII = MF->getSubtarget().getInstrInfo();
-    const MachineOperand *BaseOp;
-    if (!TII->getMemOperandWithOffset(MI, BaseOp, Offset, TRI))
-      return None;
-    unsigned CastedOffset = static_cast<unsigned>(Offset);
-    if (Offset > 0)
-      Expr = DIExpression::get(
-          MF->getFunction().getContext(),
-          {dwarf::DW_OP_plus_uconst, CastedOffset, dwarf::DW_OP_deref});
-    else
-      Expr = DIExpression::get(MF->getFunction().getContext(),
-                               {dwarf::DW_OP_constu, -CastedOffset,
-                                dwarf::DW_OP_minus, dwarf::DW_OP_deref});
-
-    Op = BaseOp;
-    return ParamLoadedValue(Op, Expr);
-  }
-
-  return None;
-}
-
 /// Both DefMI and UseMI must be valid.  By default, call directly to the
 /// itinerary. This may be overriden by the target.
 int TargetInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,