[clang] [Clang][CodeGen] Do not set inbounds flag in `EmitMemberDataPointerAddress` when the base pointer is null (PR #130952)

Thu Apr 10 19:59:49 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `openmp-offload-amdgpu-runtime-2` running on `rocm-worker-hw-02` while building `clang` at step 5 "compile-openmp".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/10/builds/3246

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 5 (compile-openmp) failure: build (failure)
...
0.148 [390/130/177] Generating header ctype.h from /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/runtimes/../libc/include/ctype.yaml
0.148 [389/130/178] Generating /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/include/amdgcn-amd-amdhsa/llvm-libc-decls/locale.h
0.148 [389/129/179] Generating header locale.h from /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/runtimes/../libc/include/locale.yaml
0.149 [387/130/180] Generating /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/include/amdgcn-amd-amdhsa/llvm-libc-decls/uchar.h
0.150 [386/130/181] Generating header uchar.h from /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/runtimes/../libc/include/uchar.yaml
0.150 [385/130/182] Generating /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/include/amdgcn-amd-amdhsa/llvm-libc-decls/time.h
0.150 [384/130/183] Generating header time.h from /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/runtimes/../libc/include/time.yaml
0.151 [383/130/184] Building CXX object libc/src/math/amdgpu/CMakeFiles/libc.src.math.amdgpu.lgamma_r.dir/lgamma_r.cpp.o
0.151 [382/130/185] Generating /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/include/amdgcn-amd-amdhsa/llvm-libc-decls/string.h
0.152 [381/130/186] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.o
FAILED: libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.o 
/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/./bin/clang++ --target=amdgcn-amd-amdhsa -DLIBC_NAMESPACE=__llvm_libc_21_0_0_git -D__LIBC_USE_FLOAT16_CONVERSION -I/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/libc -isystem /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/include/amdgcn-amd-amdhsa -O3 -DNDEBUG --target=amdgcn-amd-amdhsa -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_ADD_NULL_CHECKS "-DLIBC_MATH=(LIBC_MATH_SKIP_ACCURATE_PASS | LIBC_MATH_SMALL_TABLES | LIBC_MATH_NO_ERRNO | LIBC_MATH_NO_EXCEPT)" -fpie -DLIBC_FULL_BUILD -nostdlibinc -ffixed-point -fno-exceptions -fno-lax-vector-conversions -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-rtti -ftrivial-auto-var-init=pattern -fno-omit-frame-pointer -Wall -Wextra -Werror -Wconversion -Wno-sign-conversion -Wdeprecated -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -nogpulib -fvisibility=hidden -fconvergent-functions -flto -Wno-multi-gpu -Xclang -mcode-object-version=none -DLIBC_COPT_PUBLIC_PACKAGING -UNDEBUG -MD -MT libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.o -MF libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.o.d -o libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.o -c /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/libc/src/stdlib/memalignment.cpp
/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/libc/src/stdlib/memalignment.cpp:20:3: error: unknown type name 'uintptr_t'
   20 |   uintptr_t addr = reinterpret_cast<uintptr_t>(p);
      |   ^
/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/libc/src/stdlib/memalignment.cpp:20:37: error: unknown type name 'uintptr_t'
   20 |   uintptr_t addr = reinterpret_cast<uintptr_t>(p);
      |                                     ^
2 errors generated.
0.152 [381/129/187] Generating /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/include/amdgcn-amd-amdhsa/llvm-libc-decls/ctype.h
0.152 [381/128/188] Generating /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/include/amdgcn-amd-amdhsa/llvm-libc-decls/stdlib.h
0.152 [381/127/189] Generating header stdlib.h from /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/runtimes/../libc/include/stdlib.yaml
0.152 [381/126/190] Generating /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/include/amdgcn-amd-amdhsa/llvm-libc-decls/stdio.h
0.152 [381/125/191] Generating /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/include/amdgcn-amd-amdhsa/llvm-libc-decls/signal.h
0.154 [381/124/192] Building CXX object libc/src/strings/CMakeFiles/libc.src.strings.bcopy.dir/bcopy.cpp.o
0.157 [381/123/193] Generating header signal.h from /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/runtimes/../libc/include/signal.yaml
0.165 [381/122/194] Generating header stdio.h from /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/runtimes/../libc/include/stdio.yaml
0.175 [381/121/195] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strstr.dir/strstr.cpp.o
0.182 [381/120/196] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.common_constants.dir/common_constants.cpp.o
0.184 [381/119/197] Building CXX object libc/src/__support/GPU/CMakeFiles/libc.src.__support.GPU.allocator.dir/allocator.cpp.o
0.187 [381/118/198] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_leading_zeros_ull.dir/stdc_leading_zeros_ull.cpp.o
0.195 [381/117/199] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_leading_ones_ui.dir/stdc_leading_ones_ui.cpp.o
0.196 [381/116/200] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_leading_ones_ul.dir/stdc_leading_ones_ul.cpp.o
0.199 [381/115/201] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strcasestr.dir/strcasestr.cpp.o
0.207 [381/114/202] Building CXX object libc/src/errno/CMakeFiles/libc.src.errno.errno.dir/libc_errno.cpp.o
0.213 [381/113/203] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_leading_zeros_ui.dir/stdc_leading_zeros_ui.cpp.o
0.213 [381/112/204] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_leading_ones_uc.dir/stdc_leading_ones_uc.cpp.o
0.214 [381/111/205] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_bit_ceil_ul.dir/stdc_bit_ceil_ul.cpp.o
0.215 [381/110/206] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_trailing_zeros_ul.dir/stdc_trailing_zeros_ul.cpp.o
0.216 [381/109/207] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_first_trailing_zero_uc.dir/stdc_first_trailing_zero_uc.cpp.o
0.216 [381/108/208] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_leading_zeros_ul.dir/stdc_leading_zeros_ul.cpp.o
0.217 [381/107/209] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_count_ones_ull.dir/stdc_count_ones_ull.cpp.o
0.217 [381/106/210] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_count_ones_uc.dir/stdc_count_ones_uc.cpp.o
0.217 [381/105/211] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_has_single_bit_uc.dir/stdc_has_single_bit_uc.cpp.o
0.218 [381/104/212] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_count_ones_ul.dir/stdc_count_ones_ul.cpp.o
0.219 [381/103/213] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_trailing_ones_ui.dir/stdc_trailing_ones_ui.cpp.o
0.219 [381/102/214] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_bit_floor_us.dir/stdc_bit_floor_us.cpp.o
0.220 [381/101/215] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_first_leading_one_ui.dir/stdc_first_leading_one_ui.cpp.o
0.220 [381/100/216] Building CXX object libc/src/ctype/CMakeFiles/libc.src.ctype.isalpha_l.dir/isalpha_l.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/130952