diff options
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index 17c64740ae..c514d97bae 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -275,21 +275,19 @@ BitVector X86RegisterInfo::getReservedRegs(const MachineFunction &MF) const { // Set the stack-pointer register and its aliases as reserved. Reserved.set(X86::RSP); - Reserved.set(X86::ESP); - Reserved.set(X86::SP); - Reserved.set(X86::SPL); + for (MCSubRegIterator I(X86::RSP, this); I.isValid(); ++I) + Reserved.set(*I); // Set the instruction pointer register and its aliases as reserved. Reserved.set(X86::RIP); - Reserved.set(X86::EIP); - Reserved.set(X86::IP); + for (MCSubRegIterator I(X86::RIP, this); I.isValid(); ++I) + Reserved.set(*I); // Set the frame-pointer register and its aliases as reserved if needed. if (TFI->hasFP(MF)) { Reserved.set(X86::RBP); - Reserved.set(X86::EBP); - Reserved.set(X86::BP); - Reserved.set(X86::BPL); + for (MCSubRegIterator I(X86::RBP, this); I.isValid(); ++I) + Reserved.set(*I); } // Mark the segment registers as reserved. |