-/// getCompactUnwindRegNum - This function maps the register to the number for
-/// compact unwind encoding. Return -1 if the register isn't valid.
-int X86RegisterInfo::getCompactUnwindRegNum(unsigned RegNum, bool isEH) const {
- switch (getLLVMRegNum(RegNum, isEH)) {
- case X86::EBX: case X86::RBX: return 1;
- case X86::ECX: case X86::R12: return 2;
- case X86::EDX: case X86::R13: return 3;
- case X86::EDI: case X86::R14: return 4;
- case X86::ESI: case X86::R15: return 5;
- case X86::EBP: case X86::RBP: return 6;
- }
-
- return -1;
-}
-