diff options
| -rw-r--r-- | llvm/lib/CodeGen/RegisterScavenging.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/RegisterScavenging.cpp b/llvm/lib/CodeGen/RegisterScavenging.cpp index 953e5353df1..be568612e6c 100644 --- a/llvm/lib/CodeGen/RegisterScavenging.cpp +++ b/llvm/lib/CodeGen/RegisterScavenging.cpp @@ -419,7 +419,8 @@ unsigned RegScavenger::scavengeRegister(const TargetRegisterClass *RC, for (const MachineOperand &MO : MI.operands()) { if (MO.isReg() && MO.getReg() != 0 && !(MO.isUse() && MO.isUndef()) && !TargetRegisterInfo::isVirtualRegister(MO.getReg())) - Candidates.reset(MO.getReg()); + for (MCRegAliasIterator AI(MO.getReg(), TRI, true); AI.isValid(); ++AI) + Candidates.reset(*AI); } // Try to find a register that's unused if there is one, as then we won't |
