[llvm] [Unifomity] Remove unused PhiInput definition (NFC) (PR #161116)

[Carl Ritson via llvm-commits]

https://github.com/perlfu created https://github.com/llvm/llvm-project/pull/161116

This appears to have no users.
Putting this to review in case there is some use I am unaware of.

>From 01cc422912c9d621df6f8d2d6cd9cde820f941e4 Mon Sep 17 00:00:00 2001
From: Carl Ritson <carl.ritson at amd.com>
Date: Fri, 26 Sep 2025 11:31:23 +0900
Subject: [PATCH] [Unifomity] Remove unused PhiInput definition (NFC)

This appears to have no users.
---
 llvm/include/llvm/ADT/GenericUniformityImpl.h | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/llvm/include/llvm/ADT/GenericUniformityImpl.h b/llvm/include/llvm/ADT/GenericUniformityImpl.h
index 141816c304397..7fb0dbe22f12f 100644
--- a/llvm/include/llvm/ADT/GenericUniformityImpl.h
+++ b/llvm/include/llvm/ADT/GenericUniformityImpl.h
@@ -408,15 +408,6 @@ template <typename ContextT> class GenericUniformityAnalysisImpl {
                                 const CycleT *);
 
 protected:
-  /// \brief Value/block pair representing a single phi input.
-  struct PhiInput {
-    ConstValueRefT value;
-    BlockT *predBlock;
-
-    PhiInput(ConstValueRefT value, BlockT *predBlock)
-        : value(value), predBlock(predBlock) {}
-  };
-
   const ContextT &Context;
   const FunctionT &F;
   const CycleInfoT &CI;