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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* 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.
*
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*/
/**
* @test
* @bug 8146792
* @summary Predicate moved after partial peel may lead to broken graph
* @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation
* -XX:-UseOnStackReplacement
* -XX:CompileCommand=compileonly,compiler.loopopts.BadPredicateAfterPartialPeel::m
* -XX:CompileCommand=dontinline,compiler.loopopts.BadPredicateAfterPartialPeel::not_inlined*
* -XX:CompileCommand=quiet
* compiler.loopopts.BadPredicateAfterPartialPeel
*/
package compiler.loopopts;
public class BadPredicateAfterPartialPeel {
static void not_inlined1() {}
static void not_inlined4() {}
static int m_helper(int i, int i3, int i4) {
return i3 == 4 ? i4 : i;
}
static float[] array = new float[1000];
static int[] array2 = new int[1000];
boolean flag;
int j;
static void m(BadPredicateAfterPartialPeel o1, BadPredicateAfterPartialPeel o2, BadPredicateAfterPartialPeel o, int i4) {
int i1 = 1;
// To delay partial peeling to the loop opts pass right before CCP
int i2 = 0;
for (; i2 < 10; i2 += i1);
i2 = i2 / 10;
// Simplified during CCP:
int i3 = 2;
for (; i3 < 4; i3 *= 2);
// Loop is partial peeled right before CCP
int i = 0;
boolean b = true;
not_inlined1();
array[0] = -1;
do {
// peeled section starts here
o.flag = false;
o.j = 0;
if (b) {
// The following store will be pinned between
// predicates and the loop after partial peeling. All
// control flow will be optimized out and so nothing
// will prevent predicates from being moved out the
// loop.
array[i] = 0;
}
if (array[0] != 0) {
}
if (i >= 10) {
// peeled section ends here
return;
}
i += i2;
b = false;
int i5 = m_helper(i, i3, i4); // This will be simpliflied during CCP
if (array[i5] != 0) { // and this will become a predicate
}
if (o2.flag) {
}
// A bunch of stuff to grow loop body size and prevent peeling:
array2[0] = 0;
array2[1] = 0;
array2[2] = 0;
array2[3] = 0;
array2[4] = 0;
array2[5] = 0;
array2[6] = 0;
array2[7] = 0;
array2[8] = 0;
array2[9] = 0;
array2[10] = 0;
array2[11] = 0;
array2[12] = 0;
array2[13] = 0;
array2[14] = 0;
array2[15] = 0;
array2[16] = 0;
array2[17] = 0;
array2[18] = 0;
array2[19] = 0;
array2[20] = 0;
array2[21] = 0;
array2[22] = 0;
array2[23] = 0;
array2[24] = 0;
array2[25] = 0;
array2[26] = 0;
array2[27] = 0;
array2[28] = 0;
array2[29] = 0;
array2[30] = 0;
array2[31] = 0;
array2[32] = 0;
array2[33] = 0;
array2[34] = 0;
array2[35] = 0;
array2[36] = 0;
array2[37] = 0;
array2[38] = 0;
array2[39] = 0;
array2[40] = 0;
array2[41] = 0;
array2[42] = 0;
array2[43] = 0;
array2[44] = 0;
array2[45] = 0;
array2[46] = 0;
array2[47] = 0;
array2[48] = 0;
array2[49] = 0;
array2[50] = 0;
array2[51] = 0;
array2[52] = 0;
array2[53] = 0;
array2[54] = 0;
array2[55] = 0;
array2[56] = 0;
array2[57] = 0;
array2[58] = 0;
array2[59] = 0;
array2[60] = 0;
array2[61] = 0;
array2[62] = 0;
array2[63] = 0;
array2[64] = 0;
array2[65] = 0;
array2[66] = 0;
array2[67] = 0;
array2[68] = 0;
array2[69] = 0;
array2[70] = 0;
array2[71] = 0;
array2[72] = 0;
array2[73] = 0;
array2[74] = 0;
array2[75] = 0;
array2[76] = 0;
array2[77] = 0;
array2[78] = 0;
array2[79] = 0;
array2[80] = 0;
array2[81] = 0;
array2[82] = 0;
array2[83] = 0;
array2[84] = 0;
array2[85] = 0;
array2[86] = 0;
array2[87] = 0;
array2[88] = 0;
array2[89] = 0;
array2[90] = 0;
array2[91] = 0;
array2[92] = 0;
array2[93] = 0;
array2[94] = 0;
array2[95] = 0;
array2[96] = 0;
array2[97] = 0;
array2[98] = 0;
array2[99] = 0;
array2[100] = 0;
array2[101] = 0;
array2[102] = 0;
array2[103] = 0;
array2[104] = 0;
array2[105] = 0;
array2[106] = 0;
array2[107] = 0;
array2[108] = 0;
array2[109] = 0;
array2[110] = 0;
array2[111] = 0;
array2[112] = 0;
array2[113] = 0;
array2[114] = 0;
array2[115] = 0;
array2[116] = 0;
array2[117] = 0;
array2[118] = 0;
array2[119] = 0;
array2[120] = 0;
array2[121] = 0;
array2[122] = 0;
array2[123] = 0;
array2[124] = 0;
array2[125] = 0;
array2[126] = 0;
array2[127] = 0;
array2[128] = 0;
array2[129] = 0;
array2[130] = 0;
array2[131] = 0;
array2[132] = 0;
array2[133] = 0;
array2[134] = 0;
array2[135] = 0;
array2[136] = 0;
array2[137] = 0;
array2[138] = 0;
array2[139] = 0;
array2[140] = 0;
array2[141] = 0;
array2[142] = 0;
array2[143] = 0;
array2[144] = 0;
array2[145] = 0;
array2[146] = 0;
array2[147] = 0;
array2[148] = 0;
array2[149] = 0;
array2[150] = 0;
array2[151] = 0;
array2[152] = 0;
array2[153] = 0;
array2[154] = 0;
array2[155] = 0;
array2[156] = 0;
array2[157] = 0;
array2[158] = 0;
array2[159] = 0;
array2[160] = 0;
array2[161] = 0;
array2[162] = 0;
array2[163] = 0;
array2[164] = 0;
array2[165] = 0;
array2[166] = 0;
array2[167] = 0;
array2[168] = 0;
array2[169] = 0;
array2[170] = 0;
array2[171] = 0;
array2[172] = 0;
array2[173] = 0;
array2[174] = 0;
array2[175] = 0;
array2[176] = 0;
array2[177] = 0;
array2[178] = 0;
array2[179] = 0;
array2[180] = 0;
array2[181] = 0;
array2[182] = 0;
array2[183] = 0;
array2[184] = 0;
array2[185] = 0;
array2[186] = 0;
array2[187] = 0;
array2[188] = 0;
array2[189] = 0;
array2[190] = 0;
array2[191] = 0;
array2[192] = 0;
array2[193] = 0;
array2[194] = 0;
array2[195] = 0;
array2[196] = 0;
array2[197] = 0;
array2[198] = 0;
array2[199] = 0;
if (o1.j >= 20) {
break;
}
o1.j++;
} while(true);
not_inlined4();
}
static public void main(String[] args) {
BadPredicateAfterPartialPeel o1 = new BadPredicateAfterPartialPeel();
BadPredicateAfterPartialPeel o2 = new BadPredicateAfterPartialPeel();
for (int i = 0; i < 20000; i++) {
o1.j = 0;
m(o1, o2, o2, 0);
m_helper(i, 2, i); // pollute profile
}
}
}