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author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-11-13 01:23:30 +0000 |
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committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-11-13 01:23:30 +0000 |
commit | cb39064e7aee2273da1d00e6b800db84ddc34b6b (patch) | |
tree | 1ca6f3f186b2e460d55c43e4a05ddb509e3b4dbf /lib/CodeGen/VirtRegMap.h | |
parent | 3cb0b0edd9ec537a9415eaff97edd042a07fd16e (diff) | |
download | external_llvm-cb39064e7aee2273da1d00e6b800db84ddc34b6b.zip external_llvm-cb39064e7aee2273da1d00e6b800db84ddc34b6b.tar.gz external_llvm-cb39064e7aee2273da1d00e6b800db84ddc34b6b.tar.bz2 |
Stop tracking spill slot uses in VirtRegMap.
Nobody cared, StackSlotColoring scans the instructions to find used stack
slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144485 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/VirtRegMap.h')
-rw-r--r-- | lib/CodeGen/VirtRegMap.h | 22 |
1 files changed, 1 insertions, 21 deletions
diff --git a/lib/CodeGen/VirtRegMap.h b/lib/CodeGen/VirtRegMap.h index 7213088..68d817b 100644 --- a/lib/CodeGen/VirtRegMap.h +++ b/lib/CodeGen/VirtRegMap.h @@ -74,12 +74,6 @@ namespace llvm { /// mapping. IndexedMap<unsigned, VirtReg2IndexFunctor> Virt2SplitMap; - /// LowSpillSlot, HighSpillSlot - Lowest and highest spill slot indexes. - int LowSpillSlot, HighSpillSlot; - - /// SpillSlotToUsesMap - Records uses for each register spill slot. - SmallVector<SmallPtrSet<MachineInstr*, 4>, 8> SpillSlotToUsesMap; - /// createSpillSlot - Allocate a spill slot for RC from MFI. unsigned createSpillSlot(const TargetRegisterClass *RC); @@ -89,8 +83,7 @@ namespace llvm { public: static char ID; VirtRegMap() : MachineFunctionPass(ID), Virt2PhysMap(NO_PHYS_REG), - Virt2StackSlotMap(NO_STACK_SLOT), Virt2SplitMap(0), - LowSpillSlot(NO_STACK_SLOT), HighSpillSlot(NO_STACK_SLOT) { } + Virt2StackSlotMap(NO_STACK_SLOT), Virt2SplitMap(0) { } virtual bool runOnMachineFunction(MachineFunction &MF); virtual void getAnalysisUsage(AnalysisUsage &AU) const { @@ -198,19 +191,6 @@ namespace llvm { /// the specified stack slot void assignVirt2StackSlot(unsigned virtReg, int frameIndex); - /// @brief Records a spill slot use. - void addSpillSlotUse(int FrameIndex, MachineInstr *MI); - - /// @brief Returns true if spill slot has been used. - bool isSpillSlotUsed(int FrameIndex) const { - assert(FrameIndex >= 0 && "Spill slot index should not be negative!"); - return !SpillSlotToUsesMap[FrameIndex-LowSpillSlot].empty(); - } - - /// RemoveMachineInstrFromMaps - MI is being erased, remove it from the - /// the folded instruction map and spill point map. - void RemoveMachineInstrFromMaps(MachineInstr *MI); - /// rewrite - Rewrite all instructions in MF to use only physical registers /// by mapping all virtual register operands to their assigned physical /// registers. |