From 957410553cb0ebdcfb00b933f893735be3c7e681 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sun, 29 Mar 2026 09:40:06 +0100
Subject: Load target ISA in patio-to-cranelift

---
 .../backends/cranelift/CraneliftBackend.java       | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

(limited to 'src/main/java')

diff --git a/src/main/java/org/shedlang/compiler/backends/cranelift/CraneliftBackend.java b/src/main/java/org/shedlang/compiler/backends/cranelift/CraneliftBackend.java
index 97d0a156..d66f9a92 100644
--- a/src/main/java/org/shedlang/compiler/backends/cranelift/CraneliftBackend.java
+++ b/src/main/java/org/shedlang/compiler/backends/cranelift/CraneliftBackend.java
@@ -18,7 +18,19 @@ import java.util.List;
 import static org.shedlang.compiler.util.processes.ProcessRunner.runInheritIo;
 
 public class CraneliftBackend {
-    public static Path compileCompilationUnit(
+    public static final CraneliftBackend AMD64 = forTarget(LlvmTarget.AMD64);
+
+    public static CraneliftBackend forTarget(LlvmTarget target) {
+        return new CraneliftBackend(target);
+    }
+
+    private final LlvmTarget target;
+
+    private CraneliftBackend(LlvmTarget target) {
+        this.target = target;
+    }
+
+    public Path compileCompilationUnit(
         PatioCompilationUnit patio,
         PartialTargetPath partialTargetPath
     ) throws IOException, InterruptedException {
@@ -32,19 +44,21 @@ public class CraneliftBackend {
 
         runInheritIo(List.of(
             ShedCompilerFiles.getRoot().resolve("patio-to-cranelift/target/debug/patio-to-cranelift").toString(),
-            patioPath.toString()
+            patioPath.toString(),
+            "--target",
+            this.target.targetTriple()
         ));
 
         var objectFilePath = partialTargetPath.withExtension(".o");
         return objectFilePath;
     }
 
-    public static void link(
+    public void link(
         List<Path> inputs,
         Path outputPath,
         ShedRuntime shedRuntime
     ) throws ProcessError, InterruptedException {
         // TODO: extract linking if it's not specific to LLVM.
-        LlvmBackend.forTarget(LlvmTarget.AMD64).link(inputs, outputPath, shedRuntime);
+        LlvmBackend.forTarget(this.target).link(inputs, outputPath, shedRuntime);
     }
 }
-- 
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