[llvm] Revert "Fix memory leak in Offloading API" (PR #161465)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux-bootstrap-asan` running on `sanitizer-buildbot1` while building `llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/52/builds/11559

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/main.py:74: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 92348 tests, 64 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80..
FAIL: LLVM :: tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test (81800 of 92348)
******************** TEST 'LLVM :: tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 4
/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/yaml2obj /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test -o /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf
# executed command: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/yaml2obj /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test -o /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf
# note: command had no output on stdout or stderr
# RUN: at line 5
/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/llvm-readobj --offloading /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf 2>&1 |    /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test --check-prefix=WARN -DFILE_NAME=/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf
# executed command: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/llvm-readobj --offloading /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test --check-prefix=WARN -DFILE_NAME=/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf
# note: command had no output on stdout or stderr

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
161.80s: Clang :: Driver/fsanitize.c
145.14s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
102.48s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
94.11s: Clang :: Preprocessor/riscv-target-features.c
91.47s: Clang :: OpenMP/target_update_codegen.cpp
88.72s: Clang :: Driver/arm-cortex-cpus-2.c
86.98s: Clang :: Driver/arm-cortex-cpus-1.c
76.05s: Clang :: Preprocessor/arm-target-features.c
75.85s: Clang :: Preprocessor/aarch64-target-features.c
71.02s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
63.27s: Clang :: Preprocessor/predefined-arch-macros.c
58.46s: Clang :: Driver/clang_f_opts.c
58.14s: LLVM :: CodeGen/RISCV/attributes.ll
56.66s: Clang :: Driver/linux-ld.c
56.00s: Clang :: Driver/cl-options.c
Step 11 (stage2/asan check) failure: stage2/asan check (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/main.py:74: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 92348 tests, 64 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80..
FAIL: LLVM :: tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test (81800 of 92348)
******************** TEST 'LLVM :: tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 4
/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/yaml2obj /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test -o /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf
# executed command: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/yaml2obj /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test -o /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf
# note: command had no output on stdout or stderr
# RUN: at line 5
/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/llvm-readobj --offloading /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf 2>&1 |    /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test --check-prefix=WARN -DFILE_NAME=/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf
# executed command: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/llvm-readobj --offloading /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/test/tools/llvm-readobj/ELF/AMDGPU/offloading-fail.test --check-prefix=WARN -DFILE_NAME=/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/test/tools/llvm-readobj/ELF/AMDGPU/Output/offloading-fail.test.tmp.elf
# note: command had no output on stdout or stderr

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
161.80s: Clang :: Driver/fsanitize.c
145.14s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
102.48s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
94.11s: Clang :: Preprocessor/riscv-target-features.c
91.47s: Clang :: OpenMP/target_update_codegen.cpp
88.72s: Clang :: Driver/arm-cortex-cpus-2.c
86.98s: Clang :: Driver/arm-cortex-cpus-1.c
76.05s: Clang :: Preprocessor/arm-target-features.c
75.85s: Clang :: Preprocessor/aarch64-target-features.c
71.02s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
63.27s: Clang :: Preprocessor/predefined-arch-macros.c
58.46s: Clang :: Driver/clang_f_opts.c
58.14s: LLVM :: CodeGen/RISCV/attributes.ll
56.66s: Clang :: Driver/linux-ld.c
56.00s: Clang :: Driver/cl-options.c

```

</details>

https://github.com/llvm/llvm-project/pull/161465