diff options
| -rw-r--r-- | lib/CodeGen/RegisterScavenging.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp index 84cff8d5d8..98f485045f 100644 --- a/lib/CodeGen/RegisterScavenging.cpp +++ b/lib/CodeGen/RegisterScavenging.cpp @@ -426,7 +426,7 @@ unsigned RegScavenger::scavengeRegister(const TargetRegisterClass *RC, // Mask off the registers which are not in the TargetRegisterClass. BitVector Candidates(NumPhysRegs, false); CreateRegClassMask(RC, Candidates); - Candidates ^= ReservedRegs; // Do not include reserved registers. + Candidates ^= ReservedRegs & Candidates; // Do not include reserved registers. // Exclude all the registers being used by the instruction. for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i) { |