[llvm] [AMDGPU][LowerBufferFatPointers] Erase dead ptr(7) intrinsics (PR #160798)

[Shilei Tian via llvm-commits]

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@@ -2562,7 +2562,9 @@ bool AMDGPULowerBufferFatPointers::run(Module &M, const TargetMachine &TM) {
   for (Function *F : NeedsPostProcess)
     Splitter.processFunction(*F);
   for (Function *F : Intrinsics) {
-    if (isRemovablePointerIntrinsic(F->getIntrinsicID())) {
+    // use_empty() can also occor with cases like malked load, which will
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shiltian wrote:

ha, I literally thought that was something I don't know. Lol

https://github.com/llvm/llvm-project/pull/160798