[llvm] [llvm] Replace `UndefValue::get` with `PoisonValue::get` in unit test (PR #115985)

[Lee Wei via llvm-commits]

https://github.com/leewei05 updated https://github.com/llvm/llvm-project/pull/115985

>From 744bd01c934b438aebf857b5a721a0c5e516a4fa Mon Sep 17 00:00:00 2001
From: Lee <lee10202013 at gmail.com>
Date: Tue, 12 Nov 2024 20:50:41 -0700
Subject: [PATCH] Replace undefined value with poison value

---
 llvm/unittests/Analysis/PhiValuesTest.cpp | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/llvm/unittests/Analysis/PhiValuesTest.cpp b/llvm/unittests/Analysis/PhiValuesTest.cpp
index 149feb15d999f1..1cd8c96b33c6eb 100644
--- a/llvm/unittests/Analysis/PhiValuesTest.cpp
+++ b/llvm/unittests/Analysis/PhiValuesTest.cpp
@@ -34,14 +34,14 @@ TEST(PhiValuesTest, SimplePhi) {
   BasicBlock *If = BasicBlock::Create(C, "if", F);
   BasicBlock *Else = BasicBlock::Create(C, "else", F);
   BasicBlock *Then = BasicBlock::Create(C, "then", F);
-  BranchInst::Create(If, Else, UndefValue::get(I1Ty), Entry);
+  BranchInst::Create(If, Else, PoisonValue::get(I1Ty), Entry);
   BranchInst::Create(Then, If);
   BranchInst::Create(Then, Else);
 
-  Value *Val1 = new LoadInst(I32Ty, UndefValue::get(PtrTy), "val1", Entry);
-  Value *Val2 = new LoadInst(I32Ty, UndefValue::get(PtrTy), "val2", Entry);
-  Value *Val3 = new LoadInst(I32Ty, UndefValue::get(PtrTy), "val3", Entry);
-  Value *Val4 = new LoadInst(I32Ty, UndefValue::get(PtrTy), "val4", Entry);
+  Value *Val1 = new LoadInst(I32Ty, PoisonValue::get(PtrTy), "val1", Entry);
+  Value *Val2 = new LoadInst(I32Ty, PoisonValue::get(PtrTy), "val2", Entry);
+  Value *Val3 = new LoadInst(I32Ty, PoisonValue::get(PtrTy), "val3", Entry);
+  Value *Val4 = new LoadInst(I32Ty, PoisonValue::get(PtrTy), "val4", Entry);
 
   PHINode *Phi1 = PHINode::Create(I32Ty, 2, "phi1", Then);
   Phi1->addIncoming(Val1, If);
@@ -104,17 +104,17 @@ TEST(PhiValuesTest, DependentPhi) {
   BasicBlock *If2 = BasicBlock::Create(C, "if2", F);
   BasicBlock *Else2 = BasicBlock::Create(C, "else2", F);
   BasicBlock *End = BasicBlock::Create(C, "then", F);
-  BranchInst::Create(If1, Else1, UndefValue::get(I1Ty), Entry);
+  BranchInst::Create(If1, Else1, PoisonValue::get(I1Ty), Entry);
   BranchInst::Create(Then, If1);
   BranchInst::Create(Then, Else1);
-  BranchInst::Create(If2, Else2, UndefValue::get(I1Ty), Then);
+  BranchInst::Create(If2, Else2, PoisonValue::get(I1Ty), Then);
   BranchInst::Create(End, If2);
   BranchInst::Create(End, Else2);
 
-  Value *Val1 = new LoadInst(I32Ty, UndefValue::get(PtrTy), "val1", Entry);
-  Value *Val2 = new LoadInst(I32Ty, UndefValue::get(PtrTy), "val2", Entry);
-  Value *Val3 = new LoadInst(I32Ty, UndefValue::get(PtrTy), "val3", Entry);
-  Value *Val4 = new LoadInst(I32Ty, UndefValue::get(PtrTy), "val4", Entry);
+  Value *Val1 = new LoadInst(I32Ty, PoisonValue::get(PtrTy), "val1", Entry);
+  Value *Val2 = new LoadInst(I32Ty, PoisonValue::get(PtrTy), "val2", Entry);
+  Value *Val3 = new LoadInst(I32Ty, PoisonValue::get(PtrTy), "val3", Entry);
+  Value *Val4 = new LoadInst(I32Ty, PoisonValue::get(PtrTy), "val4", Entry);
 
   PHINode *Phi1 = PHINode::Create(I32Ty, 2, "phi1", Then);
   Phi1->addIncoming(Val1, If1);