MIR Serialization: Serialize the frame info's save and restore points.

This commit serializes the save and restore machine basic block references from
the machine frame information class.

llvm-svn: 243575

1 files changed, 17 insertions, 6 deletions

diff --git a/llvm/lib/CodeGen/MIRPrinter.cpp b/llvm/lib/CodeGen/MIRPrinter.cpp
index bdacfb9b4cd..84cf09f904c 100644
--- a/llvm/lib/CodeGen/MIRPrinter.cpp
+++ b/llvm/lib/CodeGen/MIRPrinter.cpp
@@ -72,7 +72,8 @@ public:
 
   void convert(yaml::MachineFunction &MF, const MachineRegisterInfo &RegInfo,
                const TargetRegisterInfo *TRI);
-  void convert(yaml::MachineFrameInfo &YamlMFI, const MachineFrameInfo &MFI);
+  void convert(ModuleSlotTracker &MST, yaml::MachineFrameInfo &YamlMFI,
+               const MachineFrameInfo &MFI);
   void convert(yaml::MachineFunction &MF,
                const MachineConstantPool &ConstantPool);
   void convert(ModuleSlotTracker &MST, yaml::MachineJumpTable &YamlJTI,
@@ -158,14 +159,13 @@ void MIRPrinter::print(const MachineFunction &MF) {
   YamlMF.ExposesReturnsTwice = MF.exposesReturnsTwice();
   YamlMF.HasInlineAsm = MF.hasInlineAsm();
   convert(YamlMF, MF.getRegInfo(), MF.getSubtarget().getRegisterInfo());
-  convert(YamlMF.FrameInfo, *MF.getFrameInfo());
+  ModuleSlotTracker MST(MF.getFunction()->getParent());
+  MST.incorporateFunction(*MF.getFunction());
+  convert(MST, YamlMF.FrameInfo, *MF.getFrameInfo());
   convertStackObjects(YamlMF, *MF.getFrameInfo(),
                       MF.getSubtarget().getRegisterInfo());
   if (const auto *ConstantPool = MF.getConstantPool())
     convert(YamlMF, *ConstantPool);
-
-  ModuleSlotTracker MST(MF.getFunction()->getParent());
-  MST.incorporateFunction(*MF.getFunction());
   if (const auto *JumpTableInfo = MF.getJumpTableInfo())
     convert(MST, YamlMF.JumpTableInfo, *JumpTableInfo);
   for (const auto &MBB : MF) {
@@ -207,7 +207,8 @@ void MIRPrinter::convert(yaml::MachineFunction &MF,
   }
 }
 
-void MIRPrinter::convert(yaml::MachineFrameInfo &YamlMFI,
+void MIRPrinter::convert(ModuleSlotTracker &MST,
+                         yaml::MachineFrameInfo &YamlMFI,
                          const MachineFrameInfo &MFI) {
   YamlMFI.IsFrameAddressTaken = MFI.isFrameAddressTaken();
   YamlMFI.IsReturnAddressTaken = MFI.isReturnAddressTaken();
@@ -222,6 +223,16 @@ void MIRPrinter::convert(yaml::MachineFrameInfo &YamlMFI,
   YamlMFI.HasOpaqueSPAdjustment = MFI.hasOpaqueSPAdjustment();
   YamlMFI.HasVAStart = MFI.hasVAStart();
   YamlMFI.HasMustTailInVarArgFunc = MFI.hasMustTailInVarArgFunc();
+  if (MFI.getSavePoint()) {
+    raw_string_ostream StrOS(YamlMFI.SavePoint.Value);
+    MIPrinter(StrOS, MST, RegisterMaskIds, StackObjectOperandMapping)
+        .printMBBReference(*MFI.getSavePoint());
+  }
+  if (MFI.getRestorePoint()) {
+    raw_string_ostream StrOS(YamlMFI.RestorePoint.Value);
+    MIPrinter(StrOS, MST, RegisterMaskIds, StackObjectOperandMapping)
+        .printMBBReference(*MFI.getRestorePoint());
+  }
 }
 
 void MIRPrinter::convertStackObjects(yaml::MachineFunction &MF,