Fix too small bytearray in unsafe test

Author: tkrodriguez

compiler/src/jdk.graal.compiler.test/src/jdk/graal/compiler/core/test/ea/PartialEscapeUnsafeStoreTest.java

@@ -24,9 +24,10 @@
  */
 package jdk.graal.compiler.core.test.ea;
 
-import jdk.graal.compiler.core.test.GraalCompilerTest;
 import org.junit.Test;
 
+import jdk.graal.compiler.core.test.GraalCompilerTest;
+
 /**
  * Exercise a mix of unsafe and normal reads ands writes in situations where EA might attempt to
  * fold the operations.
@@ -557,7 +558,7 @@ public void testByteArrayWithIntStoreAndRead() {
     }
 
     public static byte testByteArrayWithLongStoreAndReadSnippet(long v) {
-        byte[] b = new byte[4];
+        byte[] b = new byte[8];
         UNSAFE.putLong(b, byteArrayBaseOffset, v);
         return b[(byteSize / longSize) + 1];
     }
@@ -579,7 +580,7 @@ public void testByteArrayWithFloatStoreAndRead() {
     }
 
     public static byte testByteArrayWithDoubleStoreAndReadSnippet(double v) {
-        byte[] b = new byte[4];
+        byte[] b = new byte[8];
         UNSAFE.putDouble(b, byteArrayBaseOffset, v);
         return b[(byteSize / doubleSize) + 1];
     }