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Move MachineRegisterInfo::setRegClass out of line.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69126 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-04-15 01:19:35 +00:00
parent 593ea05957
commit 33f1c68cba
2 changed files with 21 additions and 16 deletions
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17
include/llvm/CodeGen/MachineRegisterInfo.h
View File

@ -152,23 +152,8 @@ public:
/// setRegClass - Set the register class of the specified virtual register. /// setRegClass - Set the register class of the specified virtual register.
/// ///
void setRegClass(unsigned Reg, const TargetRegisterClass *RC) { void setRegClass(unsigned Reg, const TargetRegisterClass *RC);
unsigned VR = Reg;
Reg -= TargetRegisterInfo::FirstVirtualRegister;
assert(Reg < VRegInfo.size() && "Invalid vreg!");
const TargetRegisterClass *OldRC = VRegInfo[Reg].first;
VRegInfo[Reg].first = RC;
// Remove from old register class's vregs list. This may be slow but
// fortunately this operation is rarely needed.
std::vector<unsigned> &VRegs = RegClass2VRegMap[OldRC->getID()];
std::vector<unsigned>::iterator I=std::find(VRegs.begin(), VRegs.end(), VR);
VRegs.erase(I);
// Add to new register class's vregs list.
RegClass2VRegMap[RC->getID()].push_back(VR);
}
/// createVirtualRegister - Create and return a new virtual register in the /// createVirtualRegister - Create and return a new virtual register in the
/// function with the specified register class. /// function with the specified register class.
/// ///

20
lib/CodeGen/MachineRegisterInfo.cpp
View File

@ -35,6 +35,26 @@ MachineRegisterInfo::~MachineRegisterInfo() {
delete [] PhysRegUseDefLists; delete [] PhysRegUseDefLists;
} }
/// setRegClass - Set the register class of the specified virtual register.
///
void
MachineRegisterInfo::setRegClass(unsigned Reg, const TargetRegisterClass *RC) {
unsigned VR = Reg;
Reg -= TargetRegisterInfo::FirstVirtualRegister;
assert(Reg < VRegInfo.size() && "Invalid vreg!");
const TargetRegisterClass *OldRC = VRegInfo[Reg].first;
VRegInfo[Reg].first = RC;
// Remove from old register class's vregs list. This may be slow but
// fortunately this operation is rarely needed.
std::vector<unsigned> &VRegs = RegClass2VRegMap[OldRC->getID()];
std::vector<unsigned>::iterator I=std::find(VRegs.begin(), VRegs.end(), VR);
VRegs.erase(I);
// Add to new register class's vregs list.
RegClass2VRegMap[RC->getID()].push_back(VR);
}
/// createVirtualRegister - Create and return a new virtual register in the /// createVirtualRegister - Create and return a new virtual register in the
/// function with the specified register class. /// function with the specified register class.
/// ///