[clang] [HLSL] Make it possible to assign an array from a cbuffer (PR #134174)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux-bootstrap-hwasan` running on `sanitizer-buildbot11` while building `clang` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/55/builds/10195

<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-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/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: 87880 tests, 72 workers --
Testing:  0.. 
FAIL: Clang :: CodeGenHLSL/ArrayAssignable.hlsl (9702 of 87880)
******************** TEST 'Clang :: CodeGenHLSL/ArrayAssignable.hlsl' FAILED ********************
Exit Code: 2

Command Output (stderr):
--
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/lib/clang/21/include -nostdsysteminc -triple dxil-pc-shadermodel6.3-library -finclude-default-header -emit-llvm -disable-llvm-passes -o - /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl | /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl # RUN: at line 1
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/lib/clang/21/include -nostdsysteminc -triple dxil-pc-shadermodel6.3-library -finclude-default-header -emit-llvm -disable-llvm-passes -o - /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl:15:9: error: resource has implicit register binding [-Whlsl-implicit-binding]
   15 | cbuffer CBArrays {
      |         ^
1 error generated.
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
56.25s: Clang :: Driver/fsanitize.c
40.84s: Clang :: Preprocessor/riscv-target-features.c
38.35s: Clang :: Driver/arm-cortex-cpus-2.c
37.30s: Clang :: Driver/arm-cortex-cpus-1.c
35.86s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
33.73s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
32.12s: Clang :: OpenMP/target_update_codegen.cpp
29.75s: Clang :: Preprocessor/arm-target-features.c
29.17s: Clang :: Preprocessor/aarch64-target-features.c
28.70s: LLVM :: CodeGen/RISCV/attributes.ll
27.00s: Clang :: Driver/clang_f_opts.c
25.05s: Clang :: Driver/linux-ld.c
23.88s: Clang :: Preprocessor/predefined-arch-macros.c
23.75s: LLVM :: CodeGen/ARM/build-attributes.ll
23.71s: LLVM :: tools/llvm-reduce/parallel-workitem-kill.ll
23.28s: Clang :: Driver/cl-options.c
21.56s: Clang :: Driver/x86-target-features.c
Step 11 (stage2/hwasan check) failure: stage2/hwasan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/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: 87880 tests, 72 workers --
Testing:  0.. 
FAIL: Clang :: CodeGenHLSL/ArrayAssignable.hlsl (9702 of 87880)
******************** TEST 'Clang :: CodeGenHLSL/ArrayAssignable.hlsl' FAILED ********************
Exit Code: 2

Command Output (stderr):
--
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/lib/clang/21/include -nostdsysteminc -triple dxil-pc-shadermodel6.3-library -finclude-default-header -emit-llvm -disable-llvm-passes -o - /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl | /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl # RUN: at line 1
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/lib/clang/21/include -nostdsysteminc -triple dxil-pc-shadermodel6.3-library -finclude-default-header -emit-llvm -disable-llvm-passes -o - /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl:15:9: error: resource has implicit register binding [-Whlsl-implicit-binding]
   15 | cbuffer CBArrays {
      |         ^
1 error generated.
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
56.25s: Clang :: Driver/fsanitize.c
40.84s: Clang :: Preprocessor/riscv-target-features.c
38.35s: Clang :: Driver/arm-cortex-cpus-2.c
37.30s: Clang :: Driver/arm-cortex-cpus-1.c
35.86s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
33.73s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
32.12s: Clang :: OpenMP/target_update_codegen.cpp
29.75s: Clang :: Preprocessor/arm-target-features.c
29.17s: Clang :: Preprocessor/aarch64-target-features.c
28.70s: LLVM :: CodeGen/RISCV/attributes.ll
27.00s: Clang :: Driver/clang_f_opts.c
25.05s: Clang :: Driver/linux-ld.c
23.88s: Clang :: Preprocessor/predefined-arch-macros.c
23.75s: LLVM :: CodeGen/ARM/build-attributes.ll
23.71s: LLVM :: tools/llvm-reduce/parallel-workitem-kill.ll
23.28s: Clang :: Driver/cl-options.c
21.56s: Clang :: Driver/x86-target-features.c
Step 14 (stage3/hwasan check) failure: stage3/hwasan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/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: 84856 tests, 72 workers --
Testing:  0.. 
FAIL: Clang :: CodeGenHLSL/ArrayAssignable.hlsl (9701 of 84856)
******************** TEST 'Clang :: CodeGenHLSL/ArrayAssignable.hlsl' FAILED ********************
Exit Code: 2

Command Output (stderr):
--
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/lib/clang/21/include -nostdsysteminc -triple dxil-pc-shadermodel6.3-library -finclude-default-header -emit-llvm -disable-llvm-passes -o - /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl | /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl # RUN: at line 1
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/lib/clang/21/include -nostdsysteminc -triple dxil-pc-shadermodel6.3-library -finclude-default-header -emit-llvm -disable-llvm-passes -o - /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl
+ /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl
/home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl:15:9: error: resource has implicit register binding [-Whlsl-implicit-binding]
   15 | cbuffer CBArrays {
      |         ^
1 error generated.
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm_build2_hwasan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-hwasan/build/llvm-project/clang/test/CodeGenHLSL/ArrayAssignable.hlsl

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
23.47s: LLVM :: tools/llvm-reduce/parallel-workitem-kill.ll
21.61s: Clang :: Driver/fsanitize.c
15.12s: Clang :: Preprocessor/riscv-target-features.c
14.50s: Clang :: Driver/arm-cortex-cpus-2.c
13.98s: Clang :: Driver/arm-cortex-cpus-1.c
13.48s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
12.68s: Clang :: OpenMP/target_update_codegen.cpp
10.88s: Clang :: Preprocessor/arm-target-features.c
10.79s: Clang :: Preprocessor/aarch64-target-features.c
10.01s: LLVM-Unit :: Support/./SupportTests/ProgramEnvTest/TestExecuteNoWaitDetached
9.94s: Clang :: Driver/clang_f_opts.c
9.43s: Clang :: Driver/linux-ld.c
9.35s: Clang :: Preprocessor/predefined-arch-macros.c
8.70s: LLVM :: CodeGen/RISCV/attributes.ll
8.40s: Clang :: Driver/cl-options.c
8.32s: Clang :: Driver/x86-target-features.c
8.27s: LLVM :: CodeGen/ARM/build-attributes.ll

```

</details>

https://github.com/llvm/llvm-project/pull/134174