[llvm] [SelectionDAG] Folding ZERO-EXTEND/SIGN_EXTEND poison to Poison value in getNode (PR #122741)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

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

Full details are available at: https://lab.llvm.org/buildbot/#/builders/85/builds/7898

<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:520: 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:520: 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:520: 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:520: 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:520: 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:520: 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:520: 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:72: 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: 87879 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50
FAIL: LLVM :: CodeGen/VE/Vector/ticket-64420.ll (46045 of 87879)
******************** TEST 'LLVM :: CodeGen/VE/Vector/ticket-64420.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llc < /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll -mtriple=ve -mattr=+vpu | /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll # RUN: at line 1
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llc -mtriple=ve -mattr=+vpu
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llc < /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll -mtriple=ve -mattr=-vpu | /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck --check-prefix=SCALAR /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll # RUN: at line 2
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llc -mtriple=ve -mattr=-vpu
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck --check-prefix=SCALAR /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll:23:16: error: SCALAR-NEXT: is not on the line after the previous match
; SCALAR-NEXT: st %s1, 8(, %s0)
               ^
<stdin>:11:2: note: 'next' match was here
 st %s1, 8(, %s0)
 ^
<stdin>:9:9: note: previous match ended here
# %bb.1: # %bb7
        ^
<stdin>:10:1: note: non-matching line after previous match is here
 or %s1, 0, (0)1
^

Input file: <stdin>
Check file: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll

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

Input was:
<<<<<<
         .
         .
         .
         6: func: # @func 
         7: # %bb.0: # %start 
         8:  brne.w 0, %s0, .LBB0_2 
         9: # %bb.1: # %bb7 
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:520: 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:520: 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:520: 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:520: 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:520: 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:520: 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:520: 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:72: 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: 87879 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50
FAIL: LLVM :: CodeGen/VE/Vector/ticket-64420.ll (46045 of 87879)
******************** TEST 'LLVM :: CodeGen/VE/Vector/ticket-64420.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llc < /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll -mtriple=ve -mattr=+vpu | /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll # RUN: at line 1
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llc -mtriple=ve -mattr=+vpu
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llc < /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll -mtriple=ve -mattr=-vpu | /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck --check-prefix=SCALAR /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll # RUN: at line 2
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/llc -mtriple=ve -mattr=-vpu
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/FileCheck --check-prefix=SCALAR /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll:23:16: error: SCALAR-NEXT: is not on the line after the previous match
; SCALAR-NEXT: st %s1, 8(, %s0)
               ^
<stdin>:11:2: note: 'next' match was here
 st %s1, 8(, %s0)
 ^
<stdin>:9:9: note: previous match ended here
# %bb.1: # %bb7
        ^
<stdin>:10:1: note: non-matching line after previous match is here
 or %s1, 0, (0)1
^

Input file: <stdin>
Check file: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll

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

Input was:
<<<<<<
         .
         .
         .
         6: func: # @func 
         7: # %bb.0: # %start 
         8:  brne.w 0, %s0, .LBB0_2 
         9: # %bb.1: # %bb7 
Step 13 (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:520: 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:520: 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:520: 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:520: 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:520: 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:520: 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:520: 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:72: 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: 84854 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50
FAIL: LLVM :: CodeGen/VE/Vector/ticket-64420.ll (46016 of 84854)
******************** TEST 'LLVM :: CodeGen/VE/Vector/ticket-64420.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/llc < /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll -mtriple=ve -mattr=+vpu | /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll # RUN: at line 1
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/llc -mtriple=ve -mattr=+vpu
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/llc < /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll -mtriple=ve -mattr=-vpu | /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/FileCheck --check-prefix=SCALAR /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll # RUN: at line 2
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/llc -mtriple=ve -mattr=-vpu
+ /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/bin/FileCheck --check-prefix=SCALAR /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll:23:16: error: SCALAR-NEXT: is not on the line after the previous match
; SCALAR-NEXT: st %s1, 8(, %s0)
               ^
<stdin>:11:2: note: 'next' match was here
 st %s1, 8(, %s0)
 ^
<stdin>:9:9: note: previous match ended here
# %bb.1: # %bb7
        ^
<stdin>:10:1: note: non-matching line after previous match is here
 or %s1, 0, (0)1
^

Input file: <stdin>
Check file: /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/CodeGen/VE/Vector/ticket-64420.ll

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

Input was:
<<<<<<
         .
         .
         .
         6: func: # @func 
         7: # %bb.0: # %start 
         8:  brne.w 0, %s0, .LBB0_2 
         9: # %bb.1: # %bb7 

```

</details>

https://github.com/llvm/llvm-project/pull/122741