CXX_FAST_TLS calling convention: performance improvement for AArch64.

[oota-llvm.git] / lib / Target / AArch64 / AArch64MachineFunctionInfo.h

diff --git a/lib/Target/AArch64/AArch64MachineFunctionInfo.h b/lib/Target/AArch64/AArch64MachineFunctionInfo.h
index cc0ccc2771f9be76d52baf9f9af2fe797d308915..318f8395350534a9675b6cb47bb6e1105c3dbfc7 100644 (file)
--- a/lib/Target/AArch64/AArch64MachineFunctionInfo.h
+++ b/lib/Target/AArch64/AArch64MachineFunctionInfo.h
@@ -72,16 +72,22 @@ class AArch64FunctionInfo : public MachineFunctionInfo {
   /// registers.
   unsigned VarArgsFPRSize;
 
+  /// True if this function has a subset of CSRs that is handled explicitly via
+  /// copies.
+  bool IsSplitCSR;
+
 public:
   AArch64FunctionInfo()
       : BytesInStackArgArea(0), ArgumentStackToRestore(0), HasStackFrame(false),
         NumLocalDynamicTLSAccesses(0), VarArgsStackIndex(0), VarArgsGPRIndex(0),
-        VarArgsGPRSize(0), VarArgsFPRIndex(0), VarArgsFPRSize(0) {}
+        VarArgsGPRSize(0), VarArgsFPRIndex(0), VarArgsFPRSize(0),
+        IsSplitCSR(false) {}
 
   explicit AArch64FunctionInfo(MachineFunction &MF)
       : BytesInStackArgArea(0), ArgumentStackToRestore(0), HasStackFrame(false),
         NumLocalDynamicTLSAccesses(0), VarArgsStackIndex(0), VarArgsGPRIndex(0),
-        VarArgsGPRSize(0), VarArgsFPRIndex(0), VarArgsFPRSize(0) {
+        VarArgsGPRSize(0), VarArgsFPRIndex(0), VarArgsFPRSize(0),
+        IsSplitCSR(false) {
     (void)MF;
   }
 
@@ -96,6 +102,9 @@ public:
   bool hasStackFrame() const { return HasStackFrame; }
   void setHasStackFrame(bool s) { HasStackFrame = s; }
 
+  bool isSplitCSR() const { return IsSplitCSR; }
+  void setIsSplitCSR(bool s) { IsSplitCSR = s; }
+
   void setLocalStackSize(unsigned Size) { LocalStackSize = Size; }
   unsigned getLocalStackSize() const { return LocalStackSize; }