New Issue: Borrowed classes get immediately freed after the first

Notifications Issues
1

20516, "daviditen", "Borrowed classes get immediately freed after the first", "2022-08-25T20:49:43Z"

Summary of Problem

When a borrowed class is created with

var Log: borrowed Logger?;
Log = (new owned DefaultLogger()).borrow();
Log!.Println("I want to print from my DefaultLogger");

It is allocated and lives until the end of the scope. However if you allocate another class in the same way it is immediately freed and is not usable.

Log = (new owned DefaultLogger2()).borrow();
Log!.Println("I want to print from my DefaultLogger2"); // potential crash here

These tests are hitting this problem, but often run anyway unless using a tool like valgrind:
[Error matching program output for classes/deitz/dispatch/test_dc1]
[Error matching program output for classes/deitz/inherit/test_inherit4b]
[Error matching program output for functions/varargs/varargOverrideGeneric]

Configuration Information

  • Output of chpl --version:
    chpl version 1.28.0 pre-release (c55c625893)
    built with LLVM version 13.0.1
  • Output of $CHPL_HOME/util/printchplenv --anonymize:
    CHPL_TARGET_PLATFORM: linux64
    CHPL_TARGET_COMPILER: llvm *
    CHPL_TARGET_ARCH: x86_64
    CHPL_TARGET_CPU: native
    CHPL_LOCALE_MODEL: flat
    CHPL_COMM: none *
    CHPL_TASKS: fifo *
    CHPL_LAUNCHER: none
    CHPL_TIMERS: generic
    CHPL_UNWIND: bundled *
    CHPL_MEM: cstdlib *
    CHPL_ATOMICS: cstdlib
    CHPL_GMP: bundled *
    CHPL_HWLOC: none
    CHPL_RE2: none *
    CHPL_LLVM: system *
    CHPL_AUX_FILESYS: none