[PhiValues] Adjust unit test to invalidate instructions before deleti…

…ng them

This should fix a sanitizer buildbot failure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@335862 91177308-0d34-0410-b5e6-96231b3b80d8

unittests/Analysis/PhiValuesTest.cpp

@@ -194,8 +194,8 @@ TEST(PhiValuesTest, DependentPhi) {
 
   // Check that replacing an incoming phi then deleting it works
   Phi3->setIncomingValue(1, Val2);
-  Phi2->eraseFromParent();
   PV.invalidateValue(Phi2);
+  Phi2->eraseFromParent();
   PV.invalidateValue(Phi3);
   Vals = PV.getValuesForPhi(Phi1);
   EXPECT_EQ(Vals.size(), 2u);