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Move register class name strings to a single array in MCRegisterInfo to reduce static table size and number of relocation entries.

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Indices into the table are stored in each MCRegisterClass instead of a pointer. A new method, getRegClassName, is added to MCRegisterInfo and TargetRegisterInfo to lookup the string in the table.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222118 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper
2014-11-17 05:50:14 +00:00
parent daa09d03ab
commit a5babc8a31
17 changed files with 63 additions and 44 deletions
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2
lib/CodeGen/RegAllocFast.cpp
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@ -548,7 +548,7 @@ RAFast::LiveRegMap::iterator RAFast::allocVirtReg(MachineInstr *MI,
}
DEBUG(dbgs() << "Allocating " << PrintReg(VirtReg) << " from "
<< RC->getName() << "\n");
<< TRI->getRegClassName(RC) << "\n");
unsigned BestReg = 0, BestCost = spillImpossible;
for (ArrayRef<MCPhysReg>::iterator I = AO.begin(), E = AO.end(); I != E; ++I){