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  1. JDK
  2. JDK-8292878

x86: Make scratch register usage explicit in assembler code

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Details

    • Enhancement
    • Resolution: Fixed
    • P3
    • 20
    • 20
    • hotspot
    • None
    • b13

    Description

      Improve MacroAssembler API to make scratch register usage explicit.

      Different parts of JVM have different assumptions about scratch register and implicit assumptions in MacroAssembler makes it harder to reason about the code.

      Attachments

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. JDK-8284290 x86: Remove incorrectly defined scratch registers

          • 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-8299733 AArch64: "unexpected literal addressing mode" assertion failure with -XX:+PrintC1Statistics

          • P3 - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8296969 C1: PrintC1Statistics is broken after JDK-8292878

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8298053 C1: assert(_mode != literal) failed: unexpected literal addressing mode with -XX:+PrintC1Statistics and -Xcomp

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

          Commit Commit openjdk/jdk/6e248279

          Review Review openjdk/jdk/10003

          Activity

            People

              vlivanov Vladimir Ivanov
              vlivanov Vladimir Ivanov
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              Dates

                Created:
                Updated:
                Resolved: