8320682: [AArch64] C1 compilation fails with "Field too big for insn"

Reviewed-by: phh
Backport-of: 69014cd55b59a0a63f4918fad575a6887640573e

Author: Boris Ulasevich

src/hotspot/share/c1/c1_globals.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -275,9 +275,11 @@
   develop(bool, InstallMethods, true,                                       \
           "Install methods at the end of successful compilations")          \
                                                                             \
+  /* The compiler assumes, in many places, that methods are at most 1MB. */ \
+  /* Therefore, we restrict this flag to at most 1MB.                    */ \
   develop(intx, NMethodSizeLimit, (64*K)*wordSize,                          \
           "Maximum size of a compiled method.")                             \
-          range(0, max_jint)                                                \
+          range(0, 1*M)                                                     \
                                                                             \
   develop(bool, TraceFPUStack, false,                                       \
           "Trace emulation of the FPU stack (intel only)")                  \

test/hotspot/jtreg/compiler/arguments/TestC1Globals.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 8316653
+ * @requires vm.debug
+ * @summary Test flag with max value.
+ *
+ * @run main/othervm -XX:NMethodSizeLimit=1M
+ *                   compiler.arguments.TestC1Globals
+ */
+
+/**
+ * @test
+ * @bug 8318817
+ * @requires vm.debug
+ * @requires os.family == "linux"
+ * @summary Test flag with max value combined with transparent huge pages on
+ *          Linux.
+ *
+ * @run main/othervm -XX:NMethodSizeLimit=1M
+ *                   -XX:+UseTransparentHugePages
+ *                   compiler.arguments.TestC1Globals
+ */
+
+/**
+ * @test
+ * @bug 8320682
+ * @requires vm.debug
+ * @summary Test flag with max value and specific compilation.
+ *
+ * @run main/othervm -XX:NMethodSizeLimit=1M
+ *                   -XX:CompileOnly=java.util.HashMap::putMapEntries
+ *                   -Xcomp
+ *                   compiler.arguments.TestC1Globals
+ *
+ */
+
+package compiler.arguments;
+
+public class TestC1Globals {
+
+    public static void main(String args[]) {
+        System.out.println("Passed");
+    }
+}