diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86RegisterInfo.h')
| -rw-r--r-- | llvm/lib/Target/X86/X86RegisterInfo.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86RegisterInfo.h b/llvm/lib/Target/X86/X86RegisterInfo.h index 0066fb6e1ec..d504675b058 100644 --- a/llvm/lib/Target/X86/X86RegisterInfo.h +++ b/llvm/lib/Target/X86/X86RegisterInfo.h @@ -78,6 +78,12 @@ public: /// length of this list match the getCalleeSavedRegs() list. const TargetRegisterClass* const* getCalleeSavedRegClasses() const; + /// getReservedRegs - Returns a bitset indexed by physical register number + /// indicating if a register is a special register that has particular uses and + /// should be considered unavailable at all times, e.g. SP, RA. This is used by + /// register scavenger to determine what registers are free. + BitVector getReservedRegs(const MachineFunction &MF) const; + bool hasFP(const MachineFunction &MF) const; void eliminateCallFramePseudoInstr(MachineFunction &MF, |
