From bcbdad14fa21436e8647db8c86e680ac3315a3d1 Mon Sep 17 00:00:00 2001
From: Austin Lamb <austin.lamb@microsoft.com>
Date: Mon, 4 Jan 2021 09:45:11 -0800
Subject: [PATCH] bpo-42825: Enable /OPT:REF, but explicitly disable /OPT:ICF
 since it causes test failures as Python310.dll depends on some identical
 things not folding together (such as wrap_binary_func and
 wrap_binary_func_l).

---
 PCbuild/pyproject.props | 1 +
 1 file changed, 1 insertion(+)

diff --git a/PCbuild/pyproject.props b/PCbuild/pyproject.props
index d7762ca1bc6..6b3c8b0196c 100644
--- a/PCbuild/pyproject.props
+++ b/PCbuild/pyproject.props
@@ -73,6 +73,7 @@
       <LinkTimeCodeGeneration Condition="$(SupportPGO) and $(Configuration) == 'PGInstrument'">PGInstrument</LinkTimeCodeGeneration>
       <LinkTimeCodeGeneration Condition="$(SupportPGO) and $(Configuration) == 'PGUpdate'">PGUpdate</LinkTimeCodeGeneration>
       <AdditionalDependencies>advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalOptions Condition="$(Configuration) != 'Debug'">/OPT:REF,NOICF %(AdditionalOptions)</AdditionalOptions>
     </Link>
     <Lib>
       <LinkTimeCodeGeneration Condition="$(Configuration) == 'Release'">true</LinkTimeCodeGeneration>