[clang] [llvm] [NVPTX] Support i256 load/store with 256-bit vector load (PR #155198)

[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 `clang,llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/24/builds/12077

<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:527: 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:527: 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:527: 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:527: 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:527: 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:527: 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:527: 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: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: 90148 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40
FAIL: LLVM :: CodeGen/NVPTX/load-store-atomic.err.ll (39395 of 90148)
******************** TEST 'LLVM :: CodeGen/NVPTX/load-store-atomic.err.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
not /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/llc < /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll -march=nvptx64 -mcpu=sm_100 -mattr=+ptx88 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll # RUN: at line 1
+ not /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/llc -march=nvptx64 -mcpu=sm_100 -mattr=+ptx88
+ /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll
/home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll:5:10: error: CHECK: expected string not found in input
; CHECK: error: unsupported atomic store
         ^
<stdin>:2:31: note: scanning from here
error: unsupported atomic load
                              ^
<stdin>:11:69: note: possible intended match here
 // .globl test_i128_generic_atomic // -- Begin function test_i128_generic_atomic
                                                                    ^

Input file: <stdin>
Check file: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll

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

Input was:
<<<<<<
           1: error: unsupported atomic store 
           2: error: unsupported atomic load 
check:5'0                                   X error: no match found
           3: // 
check:5'0     ~~~
           4: // Generated by LLVM NVPTX Back-End 
check:5'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           5: // 
check:5'0     ~~~
           6:  
check:5'0     ~
           7: .version 8.8 
check:5'0     ~~~~~~~~~~~~~
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:527: 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:527: 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:527: 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:527: 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:527: 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:527: 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:527: 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: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: 90148 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40
FAIL: LLVM :: CodeGen/NVPTX/load-store-atomic.err.ll (39395 of 90148)
******************** TEST 'LLVM :: CodeGen/NVPTX/load-store-atomic.err.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
not /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/llc < /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll -march=nvptx64 -mcpu=sm_100 -mattr=+ptx88 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll # RUN: at line 1
+ not /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/llc -march=nvptx64 -mcpu=sm_100 -mattr=+ptx88
+ /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll
/home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll:5:10: error: CHECK: expected string not found in input
; CHECK: error: unsupported atomic store
         ^
<stdin>:2:31: note: scanning from here
error: unsupported atomic load
                              ^
<stdin>:11:69: note: possible intended match here
 // .globl test_i128_generic_atomic // -- Begin function test_i128_generic_atomic
                                                                    ^

Input file: <stdin>
Check file: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll

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

Input was:
<<<<<<
           1: error: unsupported atomic store 
           2: error: unsupported atomic load 
check:5'0                                   X error: no match found
           3: // 
check:5'0     ~~~
           4: // Generated by LLVM NVPTX Back-End 
check:5'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           5: // 
check:5'0     ~~~
           6:  
check:5'0     ~
           7: .version 8.8 
check:5'0     ~~~~~~~~~~~~~
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:527: 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:527: 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:527: 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:527: 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:527: 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:527: 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:527: 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: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: 86845 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40
FAIL: LLVM :: CodeGen/NVPTX/load-store-atomic.err.ll (39399 of 86845)
******************** TEST 'LLVM :: CodeGen/NVPTX/load-store-atomic.err.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
not /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/llc < /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll -march=nvptx64 -mcpu=sm_100 -mattr=+ptx88 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll # RUN: at line 1
+ /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll
+ not /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm_build2_asan/bin/llc -march=nvptx64 -mcpu=sm_100 -mattr=+ptx88
/home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll:5:10: error: CHECK: expected string not found in input
; CHECK: error: unsupported atomic store
         ^
<stdin>:2:31: note: scanning from here
error: unsupported atomic load
                              ^
<stdin>:11:69: note: possible intended match here
 // .globl test_i128_generic_atomic // -- Begin function test_i128_generic_atomic
                                                                    ^

Input file: <stdin>
Check file: /home/b/sanitizer-aarch64-linux-bootstrap-asan/build/llvm-project/llvm/test/CodeGen/NVPTX/load-store-atomic.err.ll

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

Input was:
<<<<<<
           1: error: unsupported atomic store 
           2: error: unsupported atomic load 
check:5'0                                   X error: no match found
           3: // 
check:5'0     ~~~
           4: // Generated by LLVM NVPTX Back-End 
check:5'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           5: // 
check:5'0     ~~~
           6:  
check:5'0     ~
           7: .version 8.8 
check:5'0     ~~~~~~~~~~~~~

```

</details>

https://github.com/llvm/llvm-project/pull/155198