changeset 493:a738a625039a

6757316: load_constant() produces a wrong long constant, with high a low words swapped Reviewed-by: rasbold, jrose, kvn
author never
date Fri, 12 Dec 2008 19:54:46 -0800
parents ac8fe14c93e4
children 80206b8a9128
files src/share/vm/c1/c1_LIRGenerator.cpp test/compiler/6757316/Test6757316.java
diffstat 2 files changed, 45 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/vm/c1/c1_LIRGenerator.cpp	Fri Dec 12 19:53:25 2008 -0800
+++ b/src/share/vm/c1/c1_LIRGenerator.cpp	Fri Dec 12 19:54:46 2008 -0800
@@ -1210,8 +1210,8 @@
         break;
       case T_LONG:
       case T_DOUBLE:
-        if (c->as_jint_hi_bits() != other->as_jint_lo_bits()) continue;
-        if (c->as_jint_lo_bits() != other->as_jint_hi_bits()) continue;
+        if (c->as_jint_hi_bits() != other->as_jint_hi_bits()) continue;
+        if (c->as_jint_lo_bits() != other->as_jint_lo_bits()) continue;
         break;
       case T_OBJECT:
         if (c->as_jobject() != other->as_jobject()) continue;
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/6757316/Test6757316.java	Fri Dec 12 19:54:46 2008 -0800
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/**
+ * @test
+ * @bug 6757316
+ * @summary load_constant() produces a wrong long constant, with high a low words swapped
+ * @run main/othervm -Xcomp Test6757316
+ */
+
+public class Test6757316 {
+    public static void main(String[] args) {
+        long[] arr = {
+            0x11111111aaaaaaaaL,
+            0xaaaaaaaa11111111L,
+            0x11111111aaaaaaaaL,
+            0xaaaaaaaa11111111L
+        };
+        if (arr[0] == arr[1]) {
+            throw new InternalError();
+        }
+    }
+}