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  1. JDK
  2. JDK-8290451

Incorrect result when switching to C2 OSR compilation from C1

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    • b13

    Backports

      Description

        ADDITIONAL SYSTEM INFORMATION :
        Microsoft Windows 10 Professional
        10.0.19044 Build 19044
        AMD Ryzen 5 5600G with Radeon Graphics 3.90 GHz
        Memory 32 GB

        openjdk version "1.8.0_332"
        OpenJDK Runtime Environment (Temurin)(build 1.8.0_332-b09)
        OpenJDK 64-Bit Server VM (Temurin)(build 25.332-b09, mixed mode)

        openjdk version "11.0.15" 2022-04-19
        OpenJDK Runtime Environment Temurin-11.0.15+10 (build 11.0.15+10)
        OpenJDK 64-Bit Server VM Temurin-11.0.15+10 (build 11.0.15+10, mixed mode)

        A DESCRIPTION OF THE PROBLEM :
        When we try to use Hotspot to execute test cases, we may get incorrect output. In the test case, we computed the checksum within the loop, but optimizing the loop might have resulted in us getting the wrong output. The test case execution result is not fixed.
        In addition, we tried to set the -Xint flag at execution time so that we would get the correct output. So we think the issue may be related to JIT optimization.

        STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
        I shared the test case via Google Drive. You can download the test case using the link below.
        https://drive.google.com/file/d/1CY_mcL3pWMc4KsCpcUd-Ps6hs8JB631H/view?usp=sharing


        FREQUENCY : always


        Attachments

          1. check_sum.class
            0.3 kB
          2. Helper.class
            0.4 kB
          3. Helper.jasm
            1 kB
          4. Test2.java
            0.3 kB
          5. testCase14.zip
            1 kB

          Issue Links

            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8294118 Incorrect result when switching to C2 OSR compilation from C1

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8294181 Incorrect result when switching to C2 OSR compilation from C1

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8294450 Incorrect result when switching to C2 OSR compilation from C1

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8294824 Incorrect result when switching to C2 OSR compilation from C1

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8294825 Incorrect result when switching to C2 OSR compilation from C1

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8297939 Incorrect result when switching to C2 OSR compilation from C1

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8297940 Incorrect result when switching to C2 OSR compilation from C1

            • P3 - Major loss of function.
            • Resolved
            duplicates

            Bug - A problem which impairs or prevents the functions of the product. JDK-8290445 Incorrect result with C2 compiled code

            • P3 - Major loss of function.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-8296510 Interpreter and JIT compiler interaction issue

            • P3 - Major loss of function.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-8298461 Hotspot produces different results when set -Xint and -Xcomp

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-8298620 Setting the -Xcomp may cause different results in Hotspot11 and Hotspot16

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-8306724 Hotspot8 loop optimization resulted in incorrect results

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-8306725 Hotspot8 uses the wrong optimization when setting -Xcomp

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Closed
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-8296510 Interpreter and JIT compiler interaction issue

            • P3 - Major loss of function.
            • Closed
            links to

            Commit Commit openjdk/jdk11u-dev/905baaf3

            Commit Commit openjdk/jdk13u-dev/246c6c3f

            Commit Commit openjdk/jdk15u-dev/8dbca0d8

            Commit Commit openjdk/jdk17u-dev/8f28d667

            Commit Commit openjdk/jdk19u/27158f2b

            Commit Commit openjdk/jdk/afa5d4ce

            Review Review openjdk/jdk11u-dev/1383

            Review Review openjdk/jdk13u-dev/435

            Review Review openjdk/jdk15u-dev/309

            Review Review openjdk/jdk17u-dev/765

            Review Review openjdk/jdk19u/32

            Review Review openjdk/jdk/9938

            Activity

              People

                roland Roland Westrelin
                webbuggrp Webbug Group
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                Dates

                  Created:
                  Updated:
                  Resolved: