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Use uint16_t to store register overlaps to reduce static data.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152001 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper
2012-03-04 10:43:23 +00:00
parent 9406da6e66
commit e4fd907e72
33 changed files with 76 additions and 76 deletions
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2
lib/CodeGen/RegisterClassInfo.cpp
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@@ -50,7 +50,7 @@ void RegisterClassInfo::runOnMachineFunction(const MachineFunction &mf) {
CSRNum.clear();
CSRNum.resize(TRI->getNumRegs(), 0);
for (unsigned N = 0; unsigned Reg = CSR[N]; ++N)
for (const unsigned *AS = TRI->getOverlaps(Reg);
for (const uint16_t *AS = TRI->getOverlaps(Reg);
unsigned Alias = *AS; ++AS)
CSRNum[Alias] = N + 1; // 0 means no CSR, 1 means CalleeSaved[0], ...
Update = true;