Implemented Support of IA interrupt and exception handlers:

[oota-llvm.git] / lib / Target / X86 / X86RegisterInfo.h

diff --git a/lib/Target/X86/X86RegisterInfo.h b/lib/Target/X86/X86RegisterInfo.h
index f18d4d203bcb69d4801f1ab871df78b554af1f13..c3a2845c36227420292589e4159e9f1e56add253 100644 (file)
--- a/lib/Target/X86/X86RegisterInfo.h
+++ b/lib/Target/X86/X86RegisterInfo.h
@@ -87,6 +87,11 @@ public:
   const TargetRegisterClass *
   getCrossCopyRegClass(const TargetRegisterClass *RC) const override;
 
+  /// getGPRsForTailCall - Returns a register class with registers that can be
+  /// used in forming tail calls.
+  const TargetRegisterClass *
+  getGPRsForTailCall(const MachineFunction &MF) const;
+
   unsigned getRegPressureLimit(const TargetRegisterClass *RC,
                                MachineFunction &MF) const override;
 
@@ -96,7 +101,11 @@ public:
   getCalleeSavedRegs(const MachineFunction* MF) const override;
   const uint32_t *getCallPreservedMask(const MachineFunction &MF,
                                        CallingConv::ID) const override;
-  const uint32_t *getNoPreservedMask() const;
+  const uint32_t *getNoPreservedMask() const override;
+
+  // Calls involved in thread-local variable lookup save more registers than
+  // normal calls, so they need a different mask to represent this.
+  const uint32_t *getDarwinTLSCallPreservedMask() const;
 
   /// getReservedRegs - Returns a bitset indexed by physical register number
   /// indicating if a register is a special register that has particular uses and