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-rw-r--r--include/llvm/CodeGen/MachineFunction.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/MachineFunction.h b/include/llvm/CodeGen/MachineFunction.h
index 3b4de3fc30..0ba5970ac5 100644
--- a/include/llvm/CodeGen/MachineFunction.h
+++ b/include/llvm/CodeGen/MachineFunction.h
@@ -184,7 +184,7 @@ public:
/// isPhysRegUsed - Return true if the specified register is used in this
/// function. This only works after register allocation.
- bool isPhysRegUsed(unsigned Reg) { return UsedPhysRegs[Reg]; }
+ bool isPhysRegUsed(unsigned Reg) const { return UsedPhysRegs[Reg]; }
/// changePhyRegUsed - This method allows code that runs after register
/// allocation to keep the PhysRegsUsed array up-to-date.