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changeset 5800:f970454708b8

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8032207: C2: assert(VerifyOops || MachNode::size(ra_) <= (3+1)*4) failed: bad fixed size Summary: Fix the sizing of loadUS2L_immI16 and loadI2L_immI Reviewed-by: kvn, azeemj
author iveresov
date Fri, 17 Jan 2014 18:09:08 -0800
parents 709018897c81
children 984401824c5e
files src/cpu/sparc/vm/sparc.ad test/compiler/codegen/LoadWithMask.java
diffstat 2 files changed, 44 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/src/cpu/sparc/vm/sparc.ad	Thu Jan 23 01:23:23 2014 +0400
+++ b/src/cpu/sparc/vm/sparc.ad	Fri Jan 17 18:09:08 2014 -0800
@@ -5720,7 +5720,6 @@
   effect(TEMP dst, TEMP tmp);
   ins_cost(MEMORY_REF_COST + 2*DEFAULT_COST);
 
-  size((3+1)*4);  // set may use two instructions.
   format %{ "LDUH   $mem,$dst\t! ushort/char & 16-bit mask -> long\n\t"
             "SET    $mask,$tmp\n\t"
             "AND    $dst,$tmp,$dst" %}
@@ -5864,7 +5863,6 @@
   effect(TEMP dst, TEMP tmp);
   ins_cost(MEMORY_REF_COST + 2*DEFAULT_COST);
 
-  size((3+1)*4);  // set may use two instructions.
   format %{ "LDUW   $mem,$dst\t! int & 32-bit mask -> long\n\t"
             "SET    $mask,$tmp\n\t"
             "AND    $dst,$tmp,$dst" %}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/codegen/LoadWithMask.java	Fri Jan 17 18:09:08 2014 -0800
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2014, 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 8032207
+ * @summary Invalid node sizing for loadUS2L_immI16 and loadI2L_immI
+ * @run main/othervm -server -Xbatch -XX:-TieredCompilation -XX:CompileCommand=compileonly,LoadWithMask.foo LoadWithMask
+ *
+ */
+public class LoadWithMask {
+  static int x[] = new int[1];
+  static long foo() {
+    return x[0] & 0xfff0ffff;
+  }
+
+  public static void main(String[] args) {
+    x[0] = -1;
+    long l = 0;
+    for (int i = 0; i < 100000; ++i) {
+      l = foo();
+    }
+  }
+}