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Add a register class -> virtual registers map.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57844 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-10-20 20:03:28 +00:00
parent f89cfaea7a
commit 11a26f3697
2 changed files with 31 additions and 7 deletions
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lib/CodeGen/MachineRegisterInfo.cpp
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@@ -16,6 +16,7 @@ using namespace llvm;
MachineRegisterInfo::MachineRegisterInfo(const TargetRegisterInfo &TRI) {
VRegInfo.reserve(256);
RegClass2VRegMap.resize(TRI.getNumRegClasses()+1); // RC ID starts at 1.
UsedPhysRegs.resize(TRI.getNumRegs());
// Create the physreg use/def lists.