diff options
Diffstat (limited to 'include/llvm/CodeGen/RegisterScavenging.h')
| -rw-r--r-- | include/llvm/CodeGen/RegisterScavenging.h | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/include/llvm/CodeGen/RegisterScavenging.h b/include/llvm/CodeGen/RegisterScavenging.h index a4ed0129eb..458c2e4487 100644 --- a/include/llvm/CodeGen/RegisterScavenging.h +++ b/include/llvm/CodeGen/RegisterScavenging.h @@ -69,10 +69,6 @@ class RegScavenger { /// available, unset means the register is currently being used. BitVector RegsAvailable; - /// ImplicitDefed - If bit is set that means the register is defined by an - /// implicit_def instructions. That means it can be clobbered at will. - BitVector ImplicitDefed; - /// CurrDist - Distance from MBB entry to the current instruction MBBI. /// unsigned CurrDist; @@ -117,25 +113,18 @@ public: bool isUsed(unsigned Reg) const { return !RegsAvailable[Reg]; } bool isUnused(unsigned Reg) const { return RegsAvailable[Reg]; } - bool isImplicitlyDefined(unsigned Reg) const { return ImplicitDefed[Reg]; } - /// getRegsUsed - return all registers currently in use in used. void getRegsUsed(BitVector &used, bool includeReserved); /// setUsed / setUnused - Mark the state of one or a number of registers. /// - void setUsed(unsigned Reg, bool ImpDef = false); - void setUsed(BitVector &Regs, bool ImpDef = false) { + void setUsed(unsigned Reg); + void setUsed(BitVector &Regs) { RegsAvailable &= ~Regs; - if (ImpDef) - ImplicitDefed |= Regs; - else - ImplicitDefed &= ~Regs; } void setUnused(unsigned Reg, const MachineInstr *MI); void setUnused(BitVector &Regs) { RegsAvailable |= Regs; - ImplicitDefed &= ~Regs; } /// FindUnusedReg - Find a unused register of the specified register class |