From bfb0d738b1840e2bbd25203ffc8c4c21dee78bf0 Mon Sep 17 00:00:00 2001
From: Ilya Matveev <ilya.matveev@jetbrains.com>
Date: Fri, 15 Mar 2019 16:03:25 +0700
Subject: [PATCH] Disable C2 compiler for HotSpot VM when running K/N tools

---
 .../kotlin/compilerRunner/KotlinNativeToolRunner.kt         | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/compilerRunner/KotlinNativeToolRunner.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/compilerRunner/KotlinNativeToolRunner.kt
index 4b5b9eb90f8..7cd6c5b22e9 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/compilerRunner/KotlinNativeToolRunner.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/compilerRunner/KotlinNativeToolRunner.kt
@@ -98,6 +98,12 @@ internal abstract class KonanCliRunner(
             project.jvmArgs.none { it.startsWith("-Xmx") }) {
             add("-Xmx3G")
         }
+        // Disable C2 compiler for HotSpot VM to improve compilation speed.
+        System.getProperty("java.vm.name")?.let {
+            if (it.contains("HotSpot", true)) {
+                add("-XX:TieredStopAtLevel=1")
+            }
+        }
         addAll(additionalJvmArgs)
         addAll(project.jvmArgs)
     }