[PATCH] D156365: [FuncSpec][NFC] Remove SSA copy intrinsics in the unittests.

[Alexandros Lamprineas via Phabricator via llvm-commits]

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Those are added by the SCCP Solver before invoking the Specializer.
They need to be removed otherwise the destructor of PredicateInfo
complains.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D156365

Files:
  llvm/unittests/Transforms/IPO/FunctionSpecializationTest.cpp


Index: llvm/unittests/Transforms/IPO/FunctionSpecializationTest.cpp
===================================================================
--- llvm/unittests/Transforms/IPO/FunctionSpecializationTest.cpp
+++ llvm/unittests/Transforms/IPO/FunctionSpecializationTest.cpp
@@ -23,6 +23,19 @@
 
 namespace llvm {
 
+static void removeSSACopy(Function &F) {
+  for (BasicBlock &BB : F) {
+    for (Instruction &Inst : llvm::make_early_inc_range(BB)) {
+      if (auto *II = dyn_cast<IntrinsicInst>(&Inst)) {
+        if (II->getIntrinsicID() != Intrinsic::ssa_copy)
+          continue;
+        Inst.replaceAllUsesWith(II->getOperand(0));
+        Inst.eraseFromParent();
+      }
+    }
+  }
+}
+
 class FunctionSpecializationTest : public testing::Test {
 protected:
   LLVMContext Ctx;
@@ -77,6 +90,8 @@
       Solver->markOverdefined(&Arg);
     Solver->solveWhileResolvedUndefsIn(*M);
 
+    removeSSACopy(*F);
+
     return FunctionSpecializer(*Solver, *M, &FAM, GetBFI, GetTLI, GetTTI,
                                GetAC);
   }


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