Feature(compiler): Run llc by path from llvm-config

ovr · ovr · commit 608b8b4d11ed · 2018-11-28T01:48:59.000+03:00
diff --git a/src/cli.ts b/src/cli.ts
@@ -10,6 +10,7 @@ import DiagnosticHostInstance from "./diagnostic.host";
 import UnsupportedError from "./backend/error/unsupported.error";
 import {existsSync, mkdirSync, unlinkSync} from "fs";
 import {execFileSync} from "child_process";
+import {executeLLCSync} from "./utils";
 
 interface CommandLineArguments {
     args: string[];
@@ -73,7 +74,7 @@ try {
 
     const optimizationLevel = `-O${cliOptions.optimizationLevel}`;
 
-    execFileSync('llc', [
+    executeLLCSync([
         optimizationLevel,
         '-filetype=obj', path.join(outputPath, 'main.bc'),
         '-o', path.join(outputPath, 'main.o'),
diff --git a/src/utils.ts b/src/utils.ts
@@ -0,0 +1,20 @@
+
+import * as child_process from "child_process";
+import * as path from "path";
+
+let llvmBinDir: string | undefined;
+
+function getLLVMBinDirectory(): string {
+    if (!llvmBinDir) {
+        llvmBinDir = child_process.execFileSync('llvm-config', ["--bindir"]).toString().trim();
+    }
+
+    return llvmBinDir;
+}
+
+export function executeLLCSync(options: Array<any>) {
+    child_process.execFileSync(
+        path.join(getLLVMBinDirectory(), 'llc'),
+        options
+    )
+}
