jdk-24/test/hotspot/jtreg/compiler/loopopts/TestMalformedControlIrreducibleLoop.java
Roland Westrelin 690d626995 8307927: C2: "malformed control flow" with irreducible loop
Reviewed-by: thartmann, epeter
2023-06-29 07:43:46 +00:00

47 lines
1.7 KiB
Java

/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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*
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* 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
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
* @test
* @bug 8307927
* @summary C2: "malformed control flow" with irreducible loop
* @compile MalformedControlIrreducibleLoop.jasm
* @run main/othervm -Xcomp -XX:-TieredCompilation -XX:CompileOnly=TestMalformedControlIrreducibleLoop::test TestMalformedControlIrreducibleLoop
*/
public class TestMalformedControlIrreducibleLoop {
public static void main(String[] args) {
new MalformedControlIrreducibleLoop();
test(false);
}
private static void test(boolean flag) {
int i;
for (i = 1; i < 2; i *= 2) {
}
if (flag) {
MalformedControlIrreducibleLoop.actualTest(i);
}
}
}