[llvm] [GlobalISel] prevent G_UNMERGE_VALUES for vectors with different elements (PR #133335)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux-bootstrap-asan` running on `sanitizer-buildbot7` while building `llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/24/builds/9600

<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-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/main.py:73: 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: 88070 tests, 72 workers --
Testing:  0.. 10.. 20.. 
FAIL: LLVM :: CodeGen/AMDGPU/GlobalISel/insertelement.ll (27855 of 88070)
******************** TEST 'LLVM :: CodeGen/AMDGPU/GlobalISel/insertelement.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/llc -global-isel -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 -verify-machineinstrs < /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll | /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck -check-prefix=GPRIDX /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll # RUN: at line 2
+ /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck -check-prefix=GPRIDX /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll
+ /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/llc -global-isel -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 -verify-machineinstrs
/home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll:6514:16: error: GPRIDX-NEXT: is not on the line after the previous match
; GPRIDX-NEXT: s_load_dwordx16 s[12:27], s[8:9], 0x0
               ^
<stdin>:6451:2: note: 'next' match was here
 s_load_dwordx16 s[12:27], s[8:9], 0x0
 ^
<stdin>:6448:15: note: previous match ended here
; %bb.0: ; %bb
              ^
<stdin>:6449:1: note: non-matching line after previous match is here
 s_add_u32 flat_scratch_lo, s12, s17
^

Input file: <stdin>
Check file: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll

-dump-input=help explains the following input dump.

Input was:
<<<<<<
           .
           .
           .
        6446:  runtime_loader_kernel_symbol = 0 
        6447:  .end_amd_kernel_code_t 
        6448: ; %bb.0: ; %bb 
        6449:  s_add_u32 flat_scratch_lo, s12, s17 
        6450:  s_addc_u32 flat_scratch_hi, s13, 0 
        6451:  s_load_dwordx16 s[12:27], s[8:9], 0x0 
next:6514      !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  error: match on wrong line
Step 11 (stage2/asan check) failure: stage2/asan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/main.py:73: 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: 88070 tests, 72 workers --
Testing:  0.. 10.. 20.. 
FAIL: LLVM :: CodeGen/AMDGPU/GlobalISel/insertelement.ll (27855 of 88070)
******************** TEST 'LLVM :: CodeGen/AMDGPU/GlobalISel/insertelement.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/llc -global-isel -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 -verify-machineinstrs < /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll | /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck -check-prefix=GPRIDX /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll # RUN: at line 2
+ /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck -check-prefix=GPRIDX /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll
+ /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/llc -global-isel -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 -verify-machineinstrs
/home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll:6514:16: error: GPRIDX-NEXT: is not on the line after the previous match
; GPRIDX-NEXT: s_load_dwordx16 s[12:27], s[8:9], 0x0
               ^
<stdin>:6451:2: note: 'next' match was here
 s_load_dwordx16 s[12:27], s[8:9], 0x0
 ^
<stdin>:6448:15: note: previous match ended here
; %bb.0: ; %bb
              ^
<stdin>:6449:1: note: non-matching line after previous match is here
 s_add_u32 flat_scratch_lo, s12, s17
^

Input file: <stdin>
Check file: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll

-dump-input=help explains the following input dump.

Input was:
<<<<<<
           .
           .
           .
        6446:  runtime_loader_kernel_symbol = 0 
        6447:  .end_amd_kernel_code_t 
        6448: ; %bb.0: ; %bb 
        6449:  s_add_u32 flat_scratch_lo, s12, s17 
        6450:  s_addc_u32 flat_scratch_hi, s13, 0 
        6451:  s_load_dwordx16 s[12:27], s[8:9], 0x0 
next:6514      !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  error: match on wrong line
Step 14 (stage3/asan check) failure: stage3/asan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/main.py:73: 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: 84964 tests, 72 workers --
Testing:  0.. 10.. 20.. 30
FAIL: LLVM :: CodeGen/AMDGPU/GlobalISel/insertelement.ll (27948 of 84964)
******************** TEST 'LLVM :: CodeGen/AMDGPU/GlobalISel/insertelement.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/llc -global-isel -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 -verify-machineinstrs < /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll | /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/FileCheck -check-prefix=GPRIDX /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll # RUN: at line 2
+ /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/llc -global-isel -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 -verify-machineinstrs
+ /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/FileCheck -check-prefix=GPRIDX /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll
/home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll:6514:16: error: GPRIDX-NEXT: is not on the line after the previous match
; GPRIDX-NEXT: s_load_dwordx16 s[12:27], s[8:9], 0x0
               ^
<stdin>:6451:2: note: 'next' match was here
 s_load_dwordx16 s[12:27], s[8:9], 0x0
 ^
<stdin>:6448:15: note: previous match ended here
; %bb.0: ; %bb
              ^
<stdin>:6449:1: note: non-matching line after previous match is here
 s_add_u32 flat_scratch_lo, s12, s17
^

Input file: <stdin>
Check file: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll

-dump-input=help explains the following input dump.

Input was:
<<<<<<
           .
           .
           .
        6446:  runtime_loader_kernel_symbol = 0 
        6447:  .end_amd_kernel_code_t 
        6448: ; %bb.0: ; %bb 
        6449:  s_add_u32 flat_scratch_lo, s12, s17 
        6450:  s_addc_u32 flat_scratch_hi, s13, 0 
        6451:  s_load_dwordx16 s[12:27], s[8:9], 0x0 
next:6514      !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  error: match on wrong line

```

</details>

https://github.com/llvm/llvm-project/pull/133335