Fix an iterator invalidation issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46263 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/StrongPHIElimination.cpp b/lib/CodeGen/StrongPHIElimination.cpp
index 5b80b94..cdf827d 100644
--- a/lib/CodeGen/StrongPHIElimination.cpp
+++ b/lib/CodeGen/StrongPHIElimination.cpp
@@ -751,11 +751,17 @@
// FIXME: Insert last-minute copies
// Remove PHIs
- for (MachineFunction::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I)
+ std::vector<MachineInstr*> phis;
+ for (MachineFunction::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) {
for (MachineBasicBlock::iterator BI = I->begin(), BE = I->end();
BI != BE; ++BI)
if (BI->getOpcode() == TargetInstrInfo::PHI)
- BI->eraseFromParent();
+ phis.push_back(BI);
+ }
+
+ for (std::vector<MachineInstr*>::iterator I = phis.begin(), E = phis.end();
+ I != E; ++I)
+ (*I)->eraseFromParent();
return false;
}