[Mlir-commits] [mlir] [mlir] Simplify unreachable type switch cases. NFC. (PR #162032)

Mon Oct 6 07:33:02 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux-bootstrap-ubsan` running on `sanitizer-buildbot10` while building `mlir` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/85/builds/14229

<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-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-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: 91069 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80
FAIL: LLVM :: tools/llvm-exegesis/AArch64/setReg_init_check.s (77822 of 91069)
******************** TEST 'LLVM :: tools/llvm-exegesis/AArch64/setReg_init_check.s' FAILED ********************
Exit Code: -6

Command Output (stdout):
--
# RUN: at line 6
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llvm-exegesis -mtriple=aarch64 -mcpu=neoverse-v2 -mode=latency --dump-object-to-disk=%d --opcode-name=FADDV_VPZ_D --benchmark-phase=assemble-measured-code 2>&1
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llvm-exegesis -mtriple=aarch64 -mcpu=neoverse-v2 -mode=latency --dump-object-to-disk=%d --opcode-name=FADDV_VPZ_D --benchmark-phase=assemble-measured-code
# .---command stdout------------
# | Check generated assembly with: /usr/bin/objdump -d %d
# | ---
# | mode:            latency
# | key:
# |   instructions:
# |     - 'FADDV_VPZ_D Z24 P0 Z24'
# |   config:          ''
# |   register_initial_values:
# |     - 'P0=0x0'
# |     - 'Z24=0x0'
# | cpu_name:        neoverse-v2
# | llvm_triple:     aarch64
# | min_instructions: 10000
# | measurements:    []
# | error:           actual measurements skipped.
# | info:            Repeating a single explicitly serial instruction
# | assembled_snippet: E0E3182518C0F8251823C0651823C0651823C0651823C065C0035FD6
# | ...
# `-----------------------------
# RUN: at line 7
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llvm-objdump -d %d > /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-exegesis/AArch64/Output/setReg_init_check.s.tmp.s
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llvm-objdump -d %d
# .---redirected output from '/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-exegesis/AArch64/Output/setReg_init_check.s.tmp.s'
# | 
# | %d:	file format elf64-littleaarch64
# `-----------------------------
# .---command stderr------------
# | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
# | Stack dump:
Step 11 (stage2/ubsan check) failure: stage2/ubsan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-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: 91069 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80
FAIL: LLVM :: tools/llvm-exegesis/AArch64/setReg_init_check.s (77822 of 91069)
******************** TEST 'LLVM :: tools/llvm-exegesis/AArch64/setReg_init_check.s' FAILED ********************
Exit Code: -6

Command Output (stdout):
--
# RUN: at line 6
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llvm-exegesis -mtriple=aarch64 -mcpu=neoverse-v2 -mode=latency --dump-object-to-disk=%d --opcode-name=FADDV_VPZ_D --benchmark-phase=assemble-measured-code 2>&1
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llvm-exegesis -mtriple=aarch64 -mcpu=neoverse-v2 -mode=latency --dump-object-to-disk=%d --opcode-name=FADDV_VPZ_D --benchmark-phase=assemble-measured-code
# .---command stdout------------
# | Check generated assembly with: /usr/bin/objdump -d %d
# | ---
# | mode:            latency
# | key:
# |   instructions:
# |     - 'FADDV_VPZ_D Z24 P0 Z24'
# |   config:          ''
# |   register_initial_values:
# |     - 'P0=0x0'
# |     - 'Z24=0x0'
# | cpu_name:        neoverse-v2
# | llvm_triple:     aarch64
# | min_instructions: 10000
# | measurements:    []
# | error:           actual measurements skipped.
# | info:            Repeating a single explicitly serial instruction
# | assembled_snippet: E0E3182518C0F8251823C0651823C0651823C0651823C065C0035FD6
# | ...
# `-----------------------------
# RUN: at line 7
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llvm-objdump -d %d > /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-exegesis/AArch64/Output/setReg_init_check.s.tmp.s
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llvm-objdump -d %d
# .---redirected output from '/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/test/tools/llvm-exegesis/AArch64/Output/setReg_init_check.s.tmp.s'
# | 
# | %d:	file format elf64-littleaarch64
# `-----------------------------
# .---command stderr------------
# | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
# | Stack dump:
Step 14 (stage3/ubsan check) failure: stage3/ubsan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-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: 87718 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80..
FAIL: LLVM :: tools/llvm-exegesis/AArch64/no-aliasing-ld-str.s (77525 of 87718)
******************** TEST 'LLVM :: tools/llvm-exegesis/AArch64/no-aliasing-ld-str.s' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 3
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/llvm-exegesis -mtriple=aarch64 -mcpu=neoverse-v2 -mode=latency --dump-object-to-disk=%d --opcode-name=FMOVWSr --benchmark-phase=assemble-measured-code 2>&1
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/llvm-exegesis -mtriple=aarch64 -mcpu=neoverse-v2 -mode=latency --dump-object-to-disk=%d --opcode-name=FMOVWSr --benchmark-phase=assemble-measured-code
# .---command stdout------------
# | FMOVWSr: Not all operands were initialized by the snippet generator for SMOVvi32to64 opcode.
# `-----------------------------
# RUN: at line 4
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/llvm-objdump -d %d > /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/test/tools/llvm-exegesis/AArch64/Output/no-aliasing-ld-str.s.tmp.s
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/llvm-objdump -d %d
# .---command stderr------------
# | /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/llvm-objdump: error: '%d': No such file or directory
# `-----------------------------
# error: command failed with exit status: 1

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
24.02s: Clang :: Driver/fsanitize.c
23.66s: LLVM :: tools/llvm-reduce/parallel-workitem-kill.ll
23.55s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
17.08s: Clang :: CodeGen/X86/avx-builtins.c
16.28s: Clang :: CodeGen/X86/sse2-builtins.c
15.42s: Clang :: Preprocessor/riscv-target-features.c
15.31s: Clang :: CodeGen/AArch64/sve-intrinsics/acle_sve_reinterpret.c
14.83s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
14.67s: Clang :: OpenMP/target_update_codegen.cpp
14.47s: LLVM :: CodeGen/AMDGPU/memintrinsic-unroll.ll
13.76s: Clang :: CodeGen/X86/rot-intrinsics.c
13.37s: Clang :: Driver/arm-cortex-cpus-1.c
13.30s: Clang :: Driver/arm-cortex-cpus-2.c

```

</details>

https://github.com/llvm/llvm-project/pull/162032