From 6298e2d32067f187dc78999253f68a892080b510 Mon Sep 17 00:00:00 2001
From: Joseph Shields <directhex@apebox.org>
Date: Wed, 22 Apr 2020 15:40:30 -0400
Subject: [PATCH] Build iOS AOT compiler against LLVM, always.

---
 eng/Subsets.props              |  2 +-
 src/mono/Directory.Build.props |  2 +-
 src/mono/llvm/llvm-init.proj   |  8 ++++----
 src/mono/mono.proj             | 12 +++++++++---
 4 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/eng/Subsets.props b/eng/Subsets.props
index 60df5761337097..92cd8b27518189 100644
--- a/eng/Subsets.props
+++ b/eng/Subsets.props
@@ -178,7 +178,7 @@
   </ItemGroup>
 
   <!-- Mono sets -->
-  <ItemGroup Condition="$(_subset.Contains('+mono.llvm+'))">
+  <ItemGroup Condition="$(_subset.Contains('+mono.llvm+')) or '$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'">
     <MonoProject Include="$(MonoProjectRoot)llvm\llvm-init.proj" />
   </ItemGroup>
 
diff --git a/src/mono/Directory.Build.props b/src/mono/Directory.Build.props
index fed776d063ff34..91362e137887c2 100644
--- a/src/mono/Directory.Build.props
+++ b/src/mono/Directory.Build.props
@@ -99,6 +99,6 @@
 
   <PropertyGroup>
     <MonoObjDir>$(ArtifactsObjDir)mono/$(PlatformConfigPathPart)/</MonoObjDir>
-    <MonoLLVMDir Condition="'$(MonoEnableLLVM)' == 'true' and '$(MonoLLVMDir)' == ''">$(MonoObjDir)llvm</MonoLLVMDir>  
+    <MonoLLVMDir Condition="('$(MonoEnableLLVM)' == 'true' or '$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS') and '$(MonoLLVMDir)' == ''">$(MonoObjDir)llvm</MonoLLVMDir>  
   </PropertyGroup>
 </Project>
diff --git a/src/mono/llvm/llvm-init.proj b/src/mono/llvm/llvm-init.proj
index a43b35b917bc99..e26ac412f9a3fa 100644
--- a/src/mono/llvm/llvm-init.proj
+++ b/src/mono/llvm/llvm-init.proj
@@ -9,8 +9,8 @@
     <PackageReference Condition="'$(TargetOS)' == 'Linux'" Include="runtime.linux-$(HostArch).Microsoft.NETCore.Runtime.Mono.LLVM.Tools" Version="$(runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion)" />
     <PackageReference Condition="'$(TargetOS)' == 'Windows_NT'" Include="runtime.win-$(HostArch).Microsoft.NETCore.Runtime.Mono.LLVM.Sdk" Version="$(runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion)" />
     <PackageReference Condition="'$(TargetOS)' == 'Windows_NT'" Include="runtime.win-$(HostArch).Microsoft.NETCore.Runtime.Mono.LLVM.Tools" Version="$(runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion)" />
-    <PackageReference Condition="'$(TargetOS)' == 'OSX'" Include="runtime.osx.10.12-$(HostArch).Microsoft.NETCore.Runtime.Mono.LLVM.Sdk" Version="$(runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion)" />
-    <PackageReference Condition="'$(TargetOS)' == 'OSX'" Include="runtime.osx.10.12-$(HostArch).Microsoft.NETCore.Runtime.Mono.LLVM.Tools" Version="$(runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion)" />
+    <PackageReference Condition="'$(TargetOS)' == 'OSX' or '$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'" Include="runtime.osx.10.12-$(HostArch).Microsoft.NETCore.Runtime.Mono.LLVM.Sdk" Version="$(runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion)" />
+    <PackageReference Condition="'$(TargetOS)' == 'OSX' or '$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'" Include="runtime.osx.10.12-$(HostArch).Microsoft.NETCore.Runtime.Mono.LLVM.Tools" Version="$(runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion)" />
   </ItemGroup>
 
   <Target Name="CopyLLVMToTree" AfterTargets="Build">
@@ -19,8 +19,8 @@
       <LLVMFiles Condition="'$(TargetOS)' == 'Linux'" Include="$(NuGetPackageRoot)\runtime.linux-$(HostArch).microsoft.netcore.runtime.mono.llvm.tools\$(runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion)\tools\linux-$(HostArch)\**" />
       <LLVMFiles Condition="'$(TargetOS)' == 'Windows_NT'" Include="$(NuGetPackageRoot)\runtime.win-$(HostArch).microsoft.netcore.runtime.mono.llvm.sdk\$(runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion)\tools\win-$(HostArch)\**" />
       <LLVMFiles Condition="'$(TargetOS)' == 'Windows_NT'" Include="$(NuGetPackageRoot)\runtime.win-$(HostArch).microsoft.netcore.runtime.mono.llvm.tools\$(runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion)\tools\win-$(HostArch)\**" />
-      <LLVMFiles Condition="'$(TargetOS)' == 'OSX'" Include="$(NuGetPackageRoot)\runtime.osx.10.12-$(HostArch).microsoft.netcore.runtime.mono.llvm.sdk\$(runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion)\tools\osx.10.12-$(HostArch)\**" />
-      <LLVMFiles Condition="'$(TargetOS)' == 'OSX'" Include="$(NuGetPackageRoot)\runtime.osx.10.12-$(HostArch).microsoft.netcore.runtime.mono.llvm.tools\$(runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion)\tools\osx.10.12-$(HostArch)\**" />
+      <LLVMFiles Condition="'$(TargetOS)' == 'OSX' or '$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'" Include="$(NuGetPackageRoot)\runtime.osx.10.12-$(HostArch).microsoft.netcore.runtime.mono.llvm.sdk\$(runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion)\tools\osx.10.12-$(HostArch)\**" />
+      <LLVMFiles Condition="'$(TargetOS)' == 'OSX' or '$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'" Include="$(NuGetPackageRoot)\runtime.osx.10.12-$(HostArch).microsoft.netcore.runtime.mono.llvm.tools\$(runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion)\tools\osx.10.12-$(HostArch)\**" />
     </ItemGroup>
 
     <Copy SourceFiles="@(LLVMFiles)" DestinationFolder="$(MonoLLVMDir)\%(RecursiveDir)">
diff --git a/src/mono/mono.proj b/src/mono/mono.proj
index b0535f891a6d9f..de48a215b7a38a 100644
--- a/src/mono/mono.proj
+++ b/src/mono/mono.proj
@@ -50,7 +50,7 @@
       <_MonoConfigureParams Include="--enable-maintainer-mode" />
       <_MonoConfigureParams Include="--enable-compile-warnings" />
       <_MonoConfigureParams Include="--prefix=$(MonoObjDir)out" />
-      <_MonoConfigureParams Condition="'$(MonoEnableLLVM)' == 'true'" Include="--with-llvm=$(MonoLLVMDir)" /> <!-- TODO: integrate for iOS/Android -->
+      <_MonoConfigureParams Condition="'$(MonoEnableLLVM)' == 'true'" Include="--with-llvm=$(MonoLLVMDir)" /> <!-- TODO: integrate for Android -->
       <_MonoConfigureParams Condition="'$(MonoEnableCXX)' == 'true'" Include="--enable-cxx" />
     </ItemGroup>
 
@@ -183,7 +183,7 @@
       <_MonoAotCrossConfigureParams Include="--enable-minimal=com,remoting" />
       <_MonoAotCrossConfigureParams Include="--enable-monotouch" />
       <_MonoAotCrossConfigureParams Include="--disable-crash-reporting" />
-      <!--<_MonoAotCrossConfigureParams Include="with-llvm=/Users/alexander/dev/mono2/sdks/out/llvm-llvm64" /> --> <!-- TODO -->
+      <_MonoAotCrossConfigureParams Include="--with-llvm=$(MonoLLVMDir)" />
 
       <_MonoAotCrossAC_VARS Include="ac_cv_func_shm_open_working_with_mmap=no" />
 
@@ -377,7 +377,7 @@
       <_MonoAotCrossConfigureParams Include="--enable-minimal=com,remoting" />
       <_MonoAotCrossConfigureParams Include="--enable-monotouch" />
       <_MonoAotCrossConfigureParams Include="--disable-crash-reporting" />
-      <!--<_MonoAotCrossConfigureParams Include="with-llvm=/Users/alexander/dev/mono2/sdks/out/llvm-llvm64" /> --> <!-- TODO -->
+      <_MonoAotCrossConfigureParams Include="--with-llvm=$(MonoLLVMDir)" />
 
       <_MonoAotCrossAC_VARS Include="ac_cv_func_shm_open_working_with_mmap=no" />
 
@@ -1039,6 +1039,12 @@
       <_MonoRuntimeArtifacts Include="$(_MonoAotCrossFilePath)">
         <Destination>$(BinDir)cross\mono-aot-cross</Destination>
       </_MonoRuntimeArtifacts>
+      <_MonoRuntimeArtifacts Condition="'$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'" Include="$(MonoLLVMDir)\bin\llc">
+        <Destination>$(BinDir)cross\llc</Destination>
+      </_MonoRuntimeArtifacts>
+      <_MonoRuntimeArtifacts Condition="'$(TargetOS)' == 'iOS' or '$(TargetOS)' == 'tvOS'" Include="$(MonoLLVMDir)\bin\opt">
+        <Destination>$(BinDir)cross\opt</Destination>
+      </_MonoRuntimeArtifacts>
       <_MonoIncludeArtifacts Include="$(MonoObjDir)out\include\**" />
     </ItemGroup>