[WinEH] Make llvm.x86.seh.restoreframe work for stack realignment prologues

[oota-llvm.git] / lib / Target / X86 / X86MachineFunctionInfo.h

diff --git a/lib/Target/X86/X86MachineFunctionInfo.h b/lib/Target/X86/X86MachineFunctionInfo.h
index ccc202ceca82c22c80579bf5dc121bf4b82b05a2..e6db9708b677ac9bdb543a850cdaa64b901dd2ef 100644 (file)
--- a/lib/Target/X86/X86MachineFunctionInfo.h
+++ b/lib/Target/X86/X86MachineFunctionInfo.h
@@ -84,6 +84,14 @@ class X86MachineFunctionInfo : public MachineFunctionInfo {
   /// of pushes to pass function parameters.
   bool HasPushSequences = false;
 
+  /// True if the function uses llvm.x86.seh.restoreframe, and it needed a spill
+  /// slot for the frame pointer.
+  bool HasSEHFramePtrSave = false;
+
+  /// The frame index of a stack object containing the original frame pointer
+  /// used to address arguments in a function using a base pointer.
+  int SEHFramePtrSaveIndex = 0;
+
 private:
   /// ForwardedMustTailRegParms - A list of virtual and physical registers
   /// that must be forwarded to every musttail call.
@@ -143,6 +151,12 @@ public:
   unsigned getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; }
   void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; }
 
+  bool getHasSEHFramePtrSave() const { return HasSEHFramePtrSave; }
+  void setHasSEHFramePtrSave(bool V) { HasSEHFramePtrSave = V; }
+
+  int getSEHFramePtrSaveIndex() const { return SEHFramePtrSaveIndex; }
+  void setSEHFramePtrSaveIndex(int Index) { SEHFramePtrSaveIndex = Index; }
+
   SmallVectorImpl<ForwardedRegister> &getForwardedMustTailRegParms() {
     return ForwardedMustTailRegParms;
   }