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Fix a problem Duraid noticed, where we weren't removing values from the kills

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list when doing two-address and phi node lowering during register allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23043 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-08-25 05:45:31 +00:00
parent 34e17052a7
commit 4e27d3a10c
1 changed files with 20 additions and 2 deletions
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22
include/llvm/CodeGen/LiveVariables.h
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@ -213,7 +213,16 @@ public:
/// removeVirtualRegistersKilled - Remove all killed info for the specified /// removeVirtualRegistersKilled - Remove all killed info for the specified
/// instruction. /// instruction.
void removeVirtualRegistersKilled(MachineInstr *MI) { void removeVirtualRegistersKilled(MachineInstr *MI) {
RegistersKilled.erase(MI); std::map<MachineInstr*, std::vector<unsigned> >::iterator I =
RegistersKilled.find(MI);
if (I != RegistersKilled.end()) {
std::vector<unsigned> &Regs = I->second;
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
bool removed = getVarInfo(Regs[i]).removeKill(MI);
assert(removed && "kill not in register's VarInfo?");
}
RegistersKilled.erase(I);
}
} }
/// addVirtualRegisterDead - Add information about the fact that the specified /// addVirtualRegisterDead - Add information about the fact that the specified
@ -256,7 +265,16 @@ public:
/// removeVirtualRegistersDead - Remove all of the specified dead /// removeVirtualRegistersDead - Remove all of the specified dead
/// registers from the live variable information. /// registers from the live variable information.
void removeVirtualRegistersDead(MachineInstr *MI) { void removeVirtualRegistersDead(MachineInstr *MI) {
RegistersDead.erase(MI); std::map<MachineInstr*, std::vector<unsigned> >::iterator I =
RegistersDead.find(MI);
if (I != RegistersDead.end()) {
std::vector<unsigned> &Regs = I->second;
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
bool removed = getVarInfo(Regs[i]).removeKill(MI);
assert(removed && "kill not in register's VarInfo?");
}
RegistersDead.erase(I);
}
} }
virtual void getAnalysisUsage(AnalysisUsage &AU) const { virtual void getAnalysisUsage(AnalysisUsage &AU) const {