From eabd55b1b2c5e322c3b36cb44348f178692890c8 Mon Sep 17 00:00:00 2001
From: Zequan Wu <zequanwu@google.com>
Date: Tue, 30 Mar 2021 11:02:27 -0700
Subject: [PATCH] [lld-link] Enable addrsig table in COFF lto

This allow safe-icf mode to work when linking with LTO.

Differential Revision: https://reviews.llvm.org/D99613
---
 lld/COFF/LTO.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lld/COFF/LTO.cpp b/lld/COFF/LTO.cpp
index a47f66ec7cf0..d117abf86f79 100644
--- a/lld/COFF/LTO.cpp
+++ b/lld/COFF/LTO.cpp
@@ -62,6 +62,7 @@ static std::string getThinLTOOutputFile(StringRef path) {
 static lto::Config createConfig() {
   lto::Config c;
   c.Options = initTargetOptionsFromCodeGenFlags();
+  c.Options.EmitAddrsig = true;
 
   // Always emit a section per function/datum with LTO. LLVM LTO should get most
   // of the benefit of linker GC, but there are still opportunities for ICF.