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Start with a zeroed CSRNum map.

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Found by valgrind.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132457 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2011-06-02 12:07:44 +00:00
parent ab5ceacbc1
commit 19e1f633af
1 changed files with 1 additions and 1 deletions
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2
lib/CodeGen/RegisterClassInfo.cpp
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@ -39,7 +39,7 @@ void RegisterClassInfo::runOnMachineFunction(const MachineFunction &mf) {
if (Update || CSR != CalleeSaved) {
// Build a CSRNum map. Every CSR alias gets an entry pointing to the last
// overlapping CSR.
CSRNum.reset(new uint8_t[TRI->getNumRegs()]);
CSRNum.reset(new uint8_t[TRI->getNumRegs()]());
for (unsigned N = 0; unsigned Reg = CSR[N]; ++N)
for (const unsigned *AS = TRI->getOverlaps(Reg);
unsigned Alias = *AS; ++AS)