From 4bedd99d20660050ed2b290971e58381e762ff61 Mon Sep 17 00:00:00 2001
From: Pedro Lobo <pedro.lobo@tecnico.ulisboa.pt>
Date: Tue, 11 Mar 2025 22:29:09 +0000
Subject: [PATCH] [AMDGPU] Change placeholder from `undef` to `poison`

Replace `undef` debug info with `poison`.
---
 llvm/lib/Target/AMDGPU/AMDGPULowerBufferFatPointers.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Target/AMDGPU/AMDGPULowerBufferFatPointers.cpp b/llvm/lib/Target/AMDGPU/AMDGPULowerBufferFatPointers.cpp
index 608b43b59eed3..5dd1fe14e5626 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPULowerBufferFatPointers.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPULowerBufferFatPointers.cpp
@@ -1620,7 +1620,7 @@ void SplitPtrStructs::killAndReplaceSplitInstructions(
         Dbg->setExpression(*RsrcExpr);
         Dbg->replaceVariableLocationOp(I, Rsrc);
       } else {
-        Dbg->replaceVariableLocationOp(I, UndefValue::get(I->getType()));
+        Dbg->replaceVariableLocationOp(I, PoisonValue::get(I->getType()));
       }
     }