7041100: The load in String.equals intrinsic executed before null check
Summary: Remove control from loads in String.equals intrinsic and cast argument to not-null.
Reviewed-by: never
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/**
* @test
* @bug 7041100
* @summary The load in String.equals intrinsic executed before null check
*
* @run main/othervm -Xbatch Test7041100 abc def
*/
public class Test7041100 {
static String n = null;
public static void main(String[] args) throws Exception {
for (int i = 0; i < 10000; i++) {
stringEQ(args[0], args[1]);
stringEQ(args[0], args[0]);
stringEQ(args[0], n);
stringEQ(n, args[0]);
}
}
public static boolean stringEQ(String a, String b) {
if (a == b)
return true;
if (a == null || b == null)
return false;
else
return a.equals(b);
}
}