[CodeGen] Add MachineFrameInfo

Model stable frame indices, stack object kinds, tombstones, lifetimes, and frozen layouts. Validate owned frame references in the builder and verifier, and remap complete frame state during MachineFunction cloning.

1 files changed, 10 insertions, 0 deletions

diff --git a/backend/include/rcc/CodeGen/MachineFunction.h b/backend/include/rcc/CodeGen/MachineFunction.h
index 487fb5b..3e3fecb 100644
--- a/backend/include/rcc/CodeGen/MachineFunction.h
+++ b/backend/include/rcc/CodeGen/MachineFunction.h
@@ -3,6 +3,7 @@
 #ifndef RCC_CODEGEN_MACHINEFUNCTION_H
 #define RCC_CODEGEN_MACHINEFUNCTION_H
 
+#include "rcc/CodeGen/MachineFrameInfo.h"
 #include "rcc/CodeGen/MachineFunctionProperties.h"
 #include "rcc/CodeGen/MachineRegisterInfo.h"
 #include "rcc/CodeGen/StableID.h"
@@ -52,6 +53,14 @@ public:
     return RegInfo;
   }
 
+  [[nodiscard]] MachineFrameInfo &frameInfo() noexcept {
+    return FrameInfo;
+  }
+
+  [[nodiscard]] const MachineFrameInfo &frameInfo() const noexcept {
+    return FrameInfo;
+  }
+
   [[nodiscard]] MachineFunctionProperties &properties() noexcept {
     return Properties;
   }
@@ -110,6 +119,7 @@ private:
   std::string Name;
   MachineFunctionStableID StableID;
   MachineRegisterInfo RegInfo;
+  MachineFrameInfo FrameInfo;
   MachineFunctionProperties Properties;
   MachineBasicBlock *FirstBlock = nullptr;
   MachineBasicBlock *LastBlock = nullptr;