Improve stack object printing. NFC.

Reviewers: madhur13490

Reviewed By: madhur13490

Subscribers: qcolombet, arsenm, jvesely, nhaehnle, hiraditya, kerbowa, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D82712

llvm/include/llvm/CodeGen/MachineFrameInfo.h

@@ -821,7 +821,7 @@ class MachineFrameInfo {
   BitVector getPristineRegs(const MachineFunction &MF) const;
 
   /// Used by the MachineFunction printer to print information about
-  /// stack objects. Implemented in MachineFunction.cpp.
+  /// stack objects.
   void print(const MachineFunction &MF, raw_ostream &OS) const;
 
   /// dump - Print the function to stderr.

llvm/lib/CodeGen/MachineFrameInfo.cpp

@@ -210,32 +210,38 @@ void MachineFrameInfo::computeMaxCallFrameSize(const MachineFunction &MF) {
 }
 
 void MachineFrameInfo::print(const MachineFunction &MF, raw_ostream &OS) const{
-  if (Objects.empty()) return;
-
+  OS << "MF name: " << MF.getName() << "\n";
+  if (Objects.empty()) {
+    OS << "No stack objects.\n";
+    return;
+  }
   const TargetFrameLowering *FI = MF.getSubtarget().getFrameLowering();
   int ValOffset = (FI ? FI->getOffsetOfLocalArea() : 0);
 
+  OS << "NumFixedObjects=" << static_cast<unsigned>(NumFixedObjects) << "\n";
+
   OS << "Frame Objects:\n";
 
   for (unsigned i = 0, e = Objects.size(); i != e; ++i) {
     const StackObject &SO = Objects[i];
     OS << "  fi#" << (int)(i-NumFixedObjects) << ": ";
 
     if (SO.StackID != 0)
-      OS << "id=" << static_cast<unsigned>(SO.StackID) << ' ';
+      OS << "stackid=" << static_cast<unsigned>(SO.StackID) << ", ";
 
     if (SO.Size == ~0ULL) {
       OS << "dead\n";
       continue;
     }
+    OS << "isSplitSplot=" << static_cast<bool>(SO.isSpillSlot) << ", ";
     if (SO.Size == 0)
       OS << "variable sized";
     else
       OS << "size=" << SO.Size;
     OS << ", align=" << SO.Alignment.value();
 
     if (i < NumFixedObjects)
-      OS << ", fixed";
+      OS << ", fixed objects:";
     if (i < NumFixedObjects || SO.SPOffset != -1) {
       int64_t Off = SO.SPOffset - ValOffset;
       OS << ", at location [SP";