diff --git a/eng/crossIBC.ps1 b/eng/crossIBC.ps1
new file mode 100644
index 000000000000..7eb9623b3f5e
--- /dev/null
+++ b/eng/crossIBC.ps1
@@ -0,0 +1,73 @@
+#This script is for applying IBC data to Linux binaries on Windows. This is because currently IBCMerge does not run on Linux.
+#It assumes that the binary output of a Linux build will live in a directory called Linux in the root of the repo, and it leaves
+#the optimized binaries in a directory called Optimized.
+param(
+    [Parameter(Mandatory=$true)][string]$ToolSource,
+    [Parameter(Mandatory=$true)][string]$ToolUser,
+    [Parameter(Mandatory=$true)][string]$ToolPAT,
+    [Parameter(Mandatory=$true)][string]$RepoRoot,
+    [bool]$UsePartialNgen
+)
+
+#There seems to be a bug in the optional tool restore step that causes those packages to be downloaded to the root of the drive.
+#That is why we have to look in both the root and the packages directory for IBCMerge.
+function Find-IBCMerge {
+    $IBCMergePath = gci -recurse .\.packages | where {$_.Name.Contains("ibcmerge.exe")}
+    if(!$IBCMergePath)
+    {
+        Write-Error -Category ResourceUnavailable "Could not find IBCMerge.exe"
+        exit
+    }
+    $IBCMergePath.FullName
+}
+
+#Both the Preprocess-IBCMerge and Apply-IBCData are taken directly from the steps done in codeOptimization.targets
+function Preprocess-IBCMerge
+{
+    foreach($file in gci -recurse .packages\optimization.linux-x64.ibc.corefx\*.dll)
+    {
+        & $IBCMerge -q -f -delete -mo $file.FullName $file.FullName.Replace(".dll", ".ibc")
+        & $IBCMerge -mi $file.FullName
+    }
+}
+
+function Apply-IBCData
+{
+    $pwd = (Get-Item -Path ".\").FullName
+    foreach($file in gci -recurse .packages\optimization.linux-x64.ibc.corefx\*.dll)
+    {
+        #Here we look through all of the Linux binaries for the implementation dll that matches in name to the IBC data
+        $fileToOptimize = gci -recurse Linux\*Linux*\*.dll | where {$_.Name.Contains($file.Name)} | where {$_.FullName.Contains("netcoreapp")}
+        if(!$fileToOptimize)
+        {
+            $fileToOptimize = gci -recurse Linux\*Unix*\*.dll | where {$_.Name.Contains($file.Name)} | where {$_.FullName.Contains("netcoreapp")}
+        }
+        if(!$fileToOptimize)
+        {
+            $fileToOptimize = gci -recurse Linux\*AnyOS*\*.dll | where {$_.Name.Contains($file.Name)} | where {$_.FullName.Contains("netcoreapp")} | where {!$_.FullName.Contains("netfx")}
+        }
+        if($fileToOptimize)
+        {
+            if(!$UsePartialNgen)
+            {
+                Write-Host "$IBCMerge -q -f -mo $fileToOptimize -incremental $file"
+                & $IBCMerge -q -f -mo $fileToOptimize -incremental $file
+            }
+            else
+            {
+                & $IBCMerge -q -f -mo $fileToOptimize -incremental $file -partialNGEN -minify
+            }
+            $copyLocation = Join-Path -Path $pwd -ChildPath "Optimized"
+            Write-Host "Copy-Item $fileToOptimize -Destination $copyLocation"
+            Copy-Item $fileToOptimize -Destination $copyLocation
+        }
+    }
+}
+
+pushd $RepoRoot
+.\build.cmd -restore /p:OptionalToolSource=$ToolSource /p:OptionalToolSourceUser=$ToolUser /p:OptionalToolSourcePassword=$ToolPAT /p:EnableProfileGuidedOptimization=true /p:IBCTarget=Linux -release -ci
+mkdir Optimized
+$IBCMerge = Find-IBCMerge
+Preprocess-IBCMerge
+Apply-IBCData
+popd
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