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Avoid looking at stale data in verifyAnalysis().

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161004 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2012-07-30 23:15:12 +00:00
parent 1c899cf47c
commit 2f6b62b09f
1 changed files with 4 additions and 1 deletions
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5
lib/CodeGen/MachineTraceMetrics.cpp
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@ -33,7 +33,7 @@ INITIALIZE_PASS_END(MachineTraceMetrics,
"machine-trace-metrics", "Machine Trace Metrics", false, true)
MachineTraceMetrics::MachineTraceMetrics()
: MachineFunctionPass(ID), TII(0), TRI(0), MRI(0), Loops(0) {
: MachineFunctionPass(ID), MF(0), TII(0), TRI(0), MRI(0), Loops(0) {
std::fill(Ensembles, array_endof(Ensembles), (Ensemble*)0);
}
@ -55,6 +55,7 @@ bool MachineTraceMetrics::runOnMachineFunction(MachineFunction &Func) {
}
void MachineTraceMetrics::releaseMemory() {
MF = 0;
BlockInfo.clear();
for (unsigned i = 0; i != TS_NumStrategies; ++i) {
delete Ensembles[i];
@ -290,6 +291,8 @@ void MachineTraceMetrics::invalidate(const MachineBasicBlock *MBB) {
}
void MachineTraceMetrics::verifyAnalysis() const {
if (!MF)
return;
#ifndef NDEBUG
assert(BlockInfo.size() == MF->getNumBlockIDs() && "Outdated BlockInfo size");
for (unsigned i = 0; i != TS_NumStrategies; ++i)