[llvm] [SCCP] fix non-determinism (PR #105758)

[Florian Mayer via llvm-commits]

https://github.com/fmayer created https://github.com/llvm/llvm-project/pull/105758

the visit order depended on hashing because we iterated over a
SmallPtrSet


>From 7655bf67feaca0f9454611fbef6b271c30923020 Mon Sep 17 00:00:00 2001
From: Florian Mayer <fmayer at google.com>
Date: Thu, 22 Aug 2024 17:52:43 -0700
Subject: [PATCH] =?UTF-8?q?[=F0=9D=98=80=F0=9D=97=BD=F0=9D=97=BF]=20initia?=
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Created using spr 1.3.4
---
 llvm/lib/Transforms/Utils/SCCPSolver.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/Transforms/Utils/SCCPSolver.cpp b/llvm/lib/Transforms/Utils/SCCPSolver.cpp
index 40f0f04c323ddc..670d88ac7cf8fa 100644
--- a/llvm/lib/Transforms/Utils/SCCPSolver.cpp
+++ b/llvm/lib/Transforms/Utils/SCCPSolver.cpp
@@ -13,6 +13,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Transforms/Utils/SCCPSolver.h"
+#include "llvm/ADT/SetVector.h"
 #include "llvm/Analysis/ConstantFolding.h"
 #include "llvm/Analysis/InstructionSimplify.h"
 #include "llvm/Analysis/ValueLattice.h"
@@ -418,7 +419,7 @@ class SCCPInstVisitor : public InstVisitor<SCCPInstVisitor> {
 
   DenseMap<Function *, std::unique_ptr<PredicateInfo>> FnPredicateInfo;
 
-  DenseMap<Value *, SmallPtrSet<User *, 2>> AdditionalUsers;
+  DenseMap<Value *, SmallSetVector<User *, 2>> AdditionalUsers;
 
   LLVMContext &Ctx;