From 4b4fe385e49bd883fd183b5f21c1ea486c722e61 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sun, 24 Jul 2022 17:03:44 +0200
Subject: Vendor import of llvm-project main
 llvmorg-15-init-17485-ga3e38b4a206b.

---
 llvm/lib/Transforms/Utils/FunctionImportUtils.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'llvm/lib/Transforms/Utils/FunctionImportUtils.cpp')

diff --git a/llvm/lib/Transforms/Utils/FunctionImportUtils.cpp b/llvm/lib/Transforms/Utils/FunctionImportUtils.cpp
index 193806d9cc87..8e6d4626c9fd 100644
--- a/llvm/lib/Transforms/Utils/FunctionImportUtils.cpp
+++ b/llvm/lib/Transforms/Utils/FunctionImportUtils.cpp
@@ -35,6 +35,13 @@ bool FunctionImportGlobalProcessing::doImportAsDefinition(
 bool FunctionImportGlobalProcessing::shouldPromoteLocalToGlobal(
     const GlobalValue *SGV, ValueInfo VI) {
   assert(SGV->hasLocalLinkage());
+
+  // Ifuncs and ifunc alias does not have summary.
+  if (isa<GlobalIFunc>(SGV) ||
+      (isa<GlobalAlias>(SGV) &&
+       isa<GlobalIFunc>(cast<GlobalAlias>(SGV)->getAliaseeObject())))
+    return false;
+
   // Both the imported references and the original local variable must
   // be promoted.
   if (!isPerformingImport() && !isModuleExporting())
-- 
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