diff options
Diffstat (limited to 'lib/CodeGen/RegAllocFast.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocFast.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp index ea3fa61c89..a8d1e0d1f0 100644 --- a/lib/CodeGen/RegAllocFast.cpp +++ b/lib/CodeGen/RegAllocFast.cpp @@ -471,6 +471,7 @@ void RAFast::allocVirtReg(MachineInstr *MI, LiveRegEntry &LRE, unsigned Hint) { unsigned BestReg = 0, BestCost = spillImpossible; for (TargetRegisterClass::iterator I = AOB; I != AOE; ++I) { + if (UsedInInstr.test(*I)) continue; unsigned Cost = calcSpillCost(*I); // Cost is 0 when all aliases are already disabled. if (Cost == 0) |