[llvm] [AArch64] Fix missing register definitions in homogeneous epilog lowering (PR #171118)
LLVM Continuous Integration via llvm-commits
llvm-commits at lists.llvm.org
Mon Dec 8 21:13:22 PST 2025
llvm-ci wrote:
LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux-bootstrap-ubsan` running on `sanitizer-buildbot4` while building `llvm` at step 2 "annotate".
Full details are available at: https://lab.llvm.org/buildbot/#/builders/25/builds/13909
<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-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using ld.lld: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/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: 90900 tests, 64 workers --
Testing: 0.. 10.. 20..
UNRESOLVED: LLVM :: CodeGen/AArch64/arm64-homogeneous-prolog-epilog-tail-call.s (28186 of 90900)
******************** TEST 'LLVM :: CodeGen/AArch64/arm64-homogeneous-prolog-epilog-tail-call.s' FAILED ********************
Test has no 'RUN:' line
********************
Testing: 0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
Slowest Tests:
--------------------------------------------------------------------------
45.02s: LLVM :: tools/llvm-exegesis/X86/inverse_throughput/inverse_throughput-prepare-all-snippets-exhaustively.s
44.42s: LLVM :: tools/llvm-exegesis/X86/uops/uops-prepare-all-snippets-exhaustively.s
43.16s: LLVM :: tools/llvm-exegesis/X86/uops/uops-prepare-all-snippets.s
42.58s: LLVM :: tools/llvm-exegesis/X86/inverse_throughput/inverse_throughput-prepare-all-snippets.s
33.50s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
25.56s: LLVM :: CodeGen/AMDGPU/memintrinsic-unroll.ll
24.18s: LLVM :: tools/llvm-reduce/parallel-workitem-kill.ll
18.14s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.512bit.ll
16.71s: Clang :: CodeGen/AArch64/sve-intrinsics/acle_sve_reinterpret.c
16.28s: lit :: shtest-define.py
16.00s: Clang :: CodeGen/X86/avx-builtins.c
15.89s: Clang :: Preprocessor/riscv-target-features.c
15.60s: Clang :: CodeGen/X86/sse2-builtins.c
15.38s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
15.36s: Clang :: OpenMP/target_update_codegen.cpp
15.25s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
14.61s: Clang :: CodeGen/X86/avx512f-builtins.c
14.48s: Clang :: CodeGen/X86/avx512vlbw-builtins.c
14.41s: LLVM :: CodeGen/AMDGPU/shufflevector.v2i32.v8i32.ll
14.16s: lit :: shtest-shell.py
Tests Times:
--------------------------------------------------------------------------
[ Range ] :: [ Percentage ] :: [ Count ]
--------------------------------------------------------------------------
[44.0s,46.0s) :: [ ] :: [ 3/108498]
[42.0s,44.0s) :: [ ] :: [ 1/108498]
[40.0s,42.0s) :: [ ] :: [ 0/108498]
[38.0s,40.0s) :: [ ] :: [ 0/108498]
[36.0s,38.0s) :: [ ] :: [ 0/108498]
[34.0s,36.0s) :: [ ] :: [ 1/108498]
[32.0s,34.0s) :: [ ] :: [ 0/108498]
[30.0s,32.0s) :: [ ] :: [ 0/108498]
Step 14 (stage3/ubsan check) failure: stage3/ubsan check (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using ld.lld: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:564: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/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: 90900 tests, 64 workers --
Testing: 0.. 10.. 20..
UNRESOLVED: LLVM :: CodeGen/AArch64/arm64-homogeneous-prolog-epilog-tail-call.s (28186 of 90900)
******************** TEST 'LLVM :: CodeGen/AArch64/arm64-homogeneous-prolog-epilog-tail-call.s' FAILED ********************
Test has no 'RUN:' line
********************
Testing: 0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
Slowest Tests:
--------------------------------------------------------------------------
45.02s: LLVM :: tools/llvm-exegesis/X86/inverse_throughput/inverse_throughput-prepare-all-snippets-exhaustively.s
44.42s: LLVM :: tools/llvm-exegesis/X86/uops/uops-prepare-all-snippets-exhaustively.s
43.16s: LLVM :: tools/llvm-exegesis/X86/uops/uops-prepare-all-snippets.s
42.58s: LLVM :: tools/llvm-exegesis/X86/inverse_throughput/inverse_throughput-prepare-all-snippets.s
33.50s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
25.56s: LLVM :: CodeGen/AMDGPU/memintrinsic-unroll.ll
24.18s: LLVM :: tools/llvm-reduce/parallel-workitem-kill.ll
18.14s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.512bit.ll
16.71s: Clang :: CodeGen/AArch64/sve-intrinsics/acle_sve_reinterpret.c
16.28s: lit :: shtest-define.py
16.00s: Clang :: CodeGen/X86/avx-builtins.c
15.89s: Clang :: Preprocessor/riscv-target-features.c
15.60s: Clang :: CodeGen/X86/sse2-builtins.c
15.38s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
15.36s: Clang :: OpenMP/target_update_codegen.cpp
15.25s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
14.61s: Clang :: CodeGen/X86/avx512f-builtins.c
14.48s: Clang :: CodeGen/X86/avx512vlbw-builtins.c
14.41s: LLVM :: CodeGen/AMDGPU/shufflevector.v2i32.v8i32.ll
14.16s: lit :: shtest-shell.py
Tests Times:
--------------------------------------------------------------------------
[ Range ] :: [ Percentage ] :: [ Count ]
--------------------------------------------------------------------------
[44.0s,46.0s) :: [ ] :: [ 3/108498]
[42.0s,44.0s) :: [ ] :: [ 1/108498]
[40.0s,42.0s) :: [ ] :: [ 0/108498]
[38.0s,40.0s) :: [ ] :: [ 0/108498]
[36.0s,38.0s) :: [ ] :: [ 0/108498]
[34.0s,36.0s) :: [ ] :: [ 1/108498]
[32.0s,34.0s) :: [ ] :: [ 0/108498]
[30.0s,32.0s) :: [ ] :: [ 0/108498]
```
</details>
https://github.com/llvm/llvm-project/pull/171118
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