diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2007-12-05 03:14:33 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2007-12-05 03:14:33 +0000 |
| commit | d64b5c82b97ad1b74eb9fd2f23257a7899b0c307 (patch) | |
| tree | 833ba21d24aa346a057bf617a4b89ce36d9ae304 /lib/CodeGen/VirtRegMap.cpp | |
| parent | f89a22a3d1d98b8507433acf0cec7640e6da0088 (diff) | |
Add a argument to storeRegToStackSlot and storeRegToAddr to specify whether
the stored register is killed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44600 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/VirtRegMap.cpp')
| -rw-r--r-- | lib/CodeGen/VirtRegMap.cpp | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp index 58fc40b217..6c04439bcb 100644 --- a/lib/CodeGen/VirtRegMap.cpp +++ b/lib/CodeGen/VirtRegMap.cpp @@ -208,7 +208,8 @@ bool SimpleSpiller::runOnMachineFunction(MachineFunction &MF, VirtRegMap &VRM) { } if (MO.isDef()) { - MRI.storeRegToStackSlot(MBB, next(MII), PhysReg, StackSlot, RC); + MRI.storeRegToStackSlot(MBB, next(MII), PhysReg, true, + StackSlot, RC); ++NumStores; } } @@ -861,7 +862,7 @@ void LocalSpiller::SpillRegToStackSlot(MachineBasicBlock &MBB, BitVector &RegKills, std::vector<MachineOperand*> &KillOps, VirtRegMap &VRM) { - MRI->storeRegToStackSlot(MBB, next(MII), PhysReg, StackSlot, RC); + MRI->storeRegToStackSlot(MBB, next(MII), PhysReg, true, StackSlot, RC); DOUT << "Store:\t" << *next(MII); // If there is a dead store to this stack slot, nuke it now. @@ -984,9 +985,10 @@ void LocalSpiller::RewriteMBB(MachineBasicBlock &MBB, VirtRegMap &VRM) { const TargetRegisterClass *RC = RegMap->getRegClass(VirtReg); unsigned Phys = VRM.getPhys(VirtReg); int StackSlot = VRM.getStackSlot(VirtReg); - MRI->storeRegToStackSlot(MBB, next(MII), Phys, StackSlot, RC); - DOUT << "Store:\t" << *next(MII); - VRM.virtFolded(VirtReg, next(MII), VirtRegMap::isMod); + MRI->storeRegToStackSlot(MBB, next(MII), Phys, false, StackSlot, RC); + MachineInstr *StoreMI = next(MII); + DOUT << "Store:\t" << StoreMI; + VRM.virtFolded(VirtReg, StoreMI, VirtRegMap::isMod); } NextMII = next(MII); } @@ -1011,12 +1013,6 @@ void LocalSpiller::RewriteMBB(MachineBasicBlock &MBB, VirtRegMap &VRM) { assert(MRegisterInfo::isVirtualRegister(VirtReg) && "Not a virtual or a physical register?"); - // Assumes this is the last use of a split interval. IsKill will be unset - // if reg is use later unless it's a two-address operand. - if (MO.isUse() && VRM.getPreSplitReg(VirtReg) && - TID->getOperandConstraint(i, TOI::TIED_TO) == -1) - MI.getOperand(i).setIsKill(); - unsigned SubIdx = MO.getSubReg(); if (VRM.isAssignedReg(VirtReg)) { // This virtual register was assigned a physreg! |