diff options
Diffstat (limited to 'llvm/lib/CodeGen/RegAllocBasic.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/RegAllocBasic.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/RegAllocBasic.cpp b/llvm/lib/CodeGen/RegAllocBasic.cpp index c0d4d81..18a5a45 100644 --- a/llvm/lib/CodeGen/RegAllocBasic.cpp +++ b/llvm/lib/CodeGen/RegAllocBasic.cpp @@ -244,6 +244,8 @@ seedLiveVirtRegs(std::priority_queue<std::pair<float, unsigned> > &VirtRegQ) { } void RegAllocBase::assign(LiveInterval &VirtReg, unsigned PhysReg) { + DEBUG(dbgs() << "assigning " << PrintReg(VirtReg.reg, TRI) + << " to " << PrintReg(PhysReg, TRI) << '\n'); assert(!VRM->hasPhys(VirtReg.reg) && "Duplicate VirtReg assignment"); VRM->assignVirt2Phys(VirtReg.reg, PhysReg); PhysReg2LiveUnion[PhysReg].unify(VirtReg); @@ -251,6 +253,8 @@ void RegAllocBase::assign(LiveInterval &VirtReg, unsigned PhysReg) { } void RegAllocBase::unassign(LiveInterval &VirtReg, unsigned PhysReg) { + DEBUG(dbgs() << "unassigning " << PrintReg(VirtReg.reg, TRI) + << " from " << PrintReg(PhysReg, TRI) << '\n'); assert(VRM->getPhys(VirtReg.reg) == PhysReg && "Inconsistent unassign"); PhysReg2LiveUnion[PhysReg].extract(VirtReg); VRM->clearVirt(VirtReg.reg); @@ -280,11 +284,9 @@ void RegAllocBase::allocatePhysRegs() { VirtRegVec SplitVRegs; unsigned AvailablePhysReg = selectOrSplit(VirtReg, SplitVRegs); - if (AvailablePhysReg) { - DEBUG(dbgs() << "allocating: " << TRI->getName(AvailablePhysReg) - << " for " << VirtReg << '\n'); + if (AvailablePhysReg) assign(VirtReg, AvailablePhysReg); - } + for (VirtRegVec::iterator I = SplitVRegs.begin(), E = SplitVRegs.end(); I != E; ++I) { LiveInterval* SplitVirtReg = *I; |