ARM: Add support for segmented stacks

Patch by Alex Crichton, ILyoan, Luqman Aden and Svetoslav.

llvm-svn: 205430

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/lib/Target/ARM/ARMMachineFunctionInfo.h b/llvm/lib/Target/ARM/ARMMachineFunctionInfo.h
index 216430b4783..d7ec6eba941 100644
--- a/llvm/lib/Target/ARM/ARMMachineFunctionInfo.h
+++ b/llvm/lib/Target/ARM/ARMMachineFunctionInfo.h
@@ -114,6 +114,10 @@ class ARMFunctionInfo : public MachineFunctionInfo {
   /// relocation models.
   unsigned GlobalBaseReg;
 
+  /// ArgumentStackSize - amount of bytes on stack consumed by the arguments
+  /// being passed on the stack
+  unsigned ArgumentStackSize;
+
 public:
   ARMFunctionInfo() :
     isThumb(false),
@@ -182,6 +186,9 @@ public:
   void setGPRCalleeSavedArea2Size(unsigned s) { GPRCS2Size = s; }
   void setDPRCalleeSavedAreaSize(unsigned s)  { DPRCSSize = s; }
 
+  unsigned getArgumentStackSize() const { return ArgumentStackSize; }
+  void setArgumentStackSize(unsigned size) { ArgumentStackSize = size; }
+
   unsigned createJumpTableUId() {
     return JumpTableUId++;
   }