diff --git a/src/share/vm/opto/loopopts.cpp b/src/share/vm/opto/loopopts.cpp index 5084e3d8234af60afa2ae66ab06515bbb080c671..e7c02dca9006191c861ce50f803a38fb5989cb8f 100644 --- a/src/share/vm/opto/loopopts.cpp +++ b/src/share/vm/opto/loopopts.cpp @@ -346,7 +346,10 @@ Node *PhaseIdealLoop::remix_address_expressions( Node *n ) { // Yes! Reshape address expression! Node *inv_scale = new (C, 3) LShiftINode( add_invar, scale ); - register_new_node( inv_scale, add_invar_ctrl ); + Node *inv_scale_ctrl = + dom_depth(add_invar_ctrl) > dom_depth(scale_ctrl) ? + add_invar_ctrl : scale_ctrl; + register_new_node( inv_scale, inv_scale_ctrl ); Node *var_scale = new (C, 3) LShiftINode( add_var, scale ); register_new_node( var_scale, n_ctrl ); Node *var_add = new (C, 3) AddINode( var_scale, inv_scale ); diff --git a/test/compiler/6860469/Test.java b/test/compiler/6860469/Test.java new file mode 100644 index 0000000000000000000000000000000000000000..0e7771b24fc3f0b528dfc3d3282bf1ef70251a7e --- /dev/null +++ b/test/compiler/6860469/Test.java @@ -0,0 +1,71 @@ +/* + * Copyright 2009 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 6860469 + * @summary remix_address_expressions reshapes address expression with bad control + * + * @run main/othervm -Xcomp -XX:CompileOnly=Test.C Test + */ + +public class Test { + + private static final int H = 16; + private static final int F = 9; + + static int[] fl = new int[1 << F]; + + static int C(int ll, int f) { + int max = -1; + int min = H + 1; + + if (ll != 0) { + if (ll < min) { + min = ll; + } + if (ll > max) { + max = ll; + } + } + + if (f > max) { + f = max; + } + if (min > f) { + min = f; + } + + for (int mc = 1 >> max - f; mc <= 0; mc++) { + int i = mc << (32 - f); + fl[i] = max; + } + + return min; + } + + public static void main(String argv[]) { + C(0, 10); + } +}