8372860: TestCodeCacheUnloadDuringConcCycle fails on ARM32

8373429: gc/g1/TestCodeCacheUnloadDuringConcCycle fails on various platforms

Reviewed-by: shade
Backport-of: 6a6ff876c515eba6cc89320e02dc5739d4540316

Author: Roman Marchenko

test/hotspot/jtreg/gc/g1/TestCodeCacheUnloadDuringConcCycle.java

@@ -53,9 +53,9 @@
 import java.util.regex.Pattern;
 
 import jdk.test.lib.Asserts;
+import jdk.test.lib.Platform;
 import jdk.test.lib.process.OutputAnalyzer;
 import jdk.test.lib.process.ProcessTools;
-import static jdk.test.lib.Asserts.*;
 import jdk.test.whitebox.WhiteBox;
 
 public class TestCodeCacheUnloadDuringConcCycle {
@@ -70,9 +70,10 @@ private static OutputAnalyzer runTest(String concPhase) throws Exception {
                                                                     "-Xbootclasspath/a:.",
                                                                     "-Xlog:gc=trace,codecache",
                                                                     "-XX:+WhiteBoxAPI",
-                                                                    "-XX:ReservedCodeCacheSize=8M",
+                                                                    "-XX:ReservedCodeCacheSize=" + (Platform.is32bit() ? "4M" : "8M"),
                                                                     "-XX:StartAggressiveSweepingAt=50",
                                                                     "-XX:CompileCommand=compileonly,gc.g1.SomeClass::*",
+                                                                    "-XX:CompileCommand=compileonly,gc.g1.Foo*::*",
                                                                     TestCodeCacheUnloadDuringConcCycleRunner.class.getName(),
                                                                     concPhase);
         return output;