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-rw-r--r--Misc/NEWS.d/next/Build/2025-05-30-11-02-30.gh-issue-134923.gBkRg4.rst3
-rw-r--r--PCbuild/_testclinic_limited.vcxproj1
-rw-r--r--PCbuild/pyproject.props11
3 files changed, 8 insertions, 7 deletions
diff --git a/Misc/NEWS.d/next/Build/2025-05-30-11-02-30.gh-issue-134923.gBkRg4.rst b/Misc/NEWS.d/next/Build/2025-05-30-11-02-30.gh-issue-134923.gBkRg4.rst
new file mode 100644
index 00000000000..a742a6add8a
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2025-05-30-11-02-30.gh-issue-134923.gBkRg4.rst
@@ -0,0 +1,3 @@
+Windows builds with profile-guided optimization enabled now use
+``/GENPROFILE`` and ``/USEPROFILE`` instead of deprecated ``/LTCG:``
+options.
diff --git a/PCbuild/_testclinic_limited.vcxproj b/PCbuild/_testclinic_limited.vcxproj
index 183a55080e8..95c205309b1 100644
--- a/PCbuild/_testclinic_limited.vcxproj
+++ b/PCbuild/_testclinic_limited.vcxproj
@@ -70,6 +70,7 @@
<ProjectGuid>{01FDF29A-40A1-46DF-84F5-85EBBD2A2410}</ProjectGuid>
<RootNamespace>_testclinic_limited</RootNamespace>
<Keyword>Win32Proj</Keyword>
+ <SupportPGO>false</SupportPGO>
</PropertyGroup>
<Import Project="python.props" />
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
diff --git a/PCbuild/pyproject.props b/PCbuild/pyproject.props
index 7272542e13a..ce51e342241 100644
--- a/PCbuild/pyproject.props
+++ b/PCbuild/pyproject.props
@@ -96,19 +96,16 @@
<TargetMachine Condition="'$(Platform)' == 'x64'">MachineX64</TargetMachine>
<TargetMachine Condition="'$(Platform)'=='ARM'">MachineARM</TargetMachine>
<TargetMachine Condition="'$(Platform)'=='ARM64'">MachineARM64</TargetMachine>
- <ProfileGuidedDatabase Condition="$(SupportPGO)">$(OutDir)$(TargetName).pgd</ProfileGuidedDatabase>
- <LinkTimeCodeGeneration Condition="$(Configuration) == 'Release'">UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
- <LinkTimeCodeGeneration Condition="$(SupportPGO) and $(Configuration) == 'PGInstrument'">PGInstrument</LinkTimeCodeGeneration>
- <LinkTimeCodeGeneration Condition="$(SupportPGO) and $(Configuration) == 'PGUpdate'">PGUpdate</LinkTimeCodeGeneration>
+ <LinkTimeCodeGeneration Condition="$(Configuration) != 'Debug'">UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
<AdditionalDependencies>advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalOptions Condition="$(Configuration) != 'Debug'">/OPT:REF,NOICF %(AdditionalOptions)</AdditionalOptions>
<AdditionalOptions Condition="$(MSVCHasBrokenARM64Clamping) == 'true' and $(Platform) == 'ARM64'">-d2:-pattern-opt-disable:-932189325 %(AdditionalOptions)</AdditionalOptions>
+ <AdditionalOptions Condition="$(SupportPGO) and $(Configuration) == 'PGInstrument'">/GENPROFILE %(AdditionalOptions)</AdditionalOptions>
+ <AdditionalOptions Condition="$(SupportPGO) and $(Configuration) == 'PGUpdate'">/USEPROFILE %(AdditionalOptions)</AdditionalOptions>
</Link>
<Lib>
<LinkTimeCodeGeneration>false</LinkTimeCodeGeneration>
- <LinkTimeCodeGeneration Condition="$(Configuration) == 'Release'">true</LinkTimeCodeGeneration>
- <LinkTimeCodeGeneration Condition="$(SupportPGO) and $(Configuration) == 'PGInstrument'">true</LinkTimeCodeGeneration>
- <LinkTimeCodeGeneration Condition="$(SupportPGO) and $(Configuration) == 'PGUpdate'">true</LinkTimeCodeGeneration>
+ <LinkTimeCodeGeneration Condition="$(Configuration) != 'Debug'">true</LinkTimeCodeGeneration>
</Lib>
<ResourceCompile>
<AdditionalIncludeDirectories>$(PySourcePath)PC;$(PySourcePath)Include;$(IntDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>