IssueTracker

Versions

• r8 version: R8 main (build engineering)
• art version: ART version 2.1.0 x86_64
• java version: 17.0.12

Description

When we ran the testcase below, we found an inconsistency: the result from running directly on the JVM differs from the result after D8 processing with host-art. According to the logic of the code, the actual correct result should align with the JVM's output.

Step to Reproduce

1. javac -source 8 -target 8 -cp . Test.java
2. jar cvf classes.jar ./*.class
3. java -cp d8.jar com.android.tools.r8.D8 --output ./ ./classes.jar
4. env ANDROID_LOG_TAGS=*:f ANDROID_DATA=./ path-to-art/art --64 --no-compile -cp ./classes.dex Test

JVM Result

5
10
10
10
10

R8+ART Result

5
5
5
5
5

Testcase Source Code

class Test {
  long a;
  long b;

  void m() {
    int k = 5;
    k <<= a;
    try {
      String j = "sss";
      java.io.LineNumberReader d = new java.io.LineNumberReader(new java.io.CharArrayReader(j.toCharArray()));
    d.skip(Long.MAX_VALUE);
    a = d.getLineNumber();
    } catch (Exception e) {
    }
    System.out.println(k);
  }

  public static void main(String[] n) {
    Test test = new Test();
    for (int i = 0; i < 5; i++)
      test.m();
  }
}

rules.pro

-libraryjars android.jar
-keep class Test { public main(java.lang.String[]); }