[llvm] [SelectionDAG][RISCV] Treat zext nneg as sext in PromoteIntOp_ZERO_EXTEND if the promoted input is sign extended. (PR #145120)

Sat Jun 21 19:10:33 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `fuchsia-x86_64-linux` running on `fuchsia-debian-64-us-central1-a-1` while building `llvm` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/11/builds/17813

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

```
Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/fuchsia-linux.py ...' (failure)
...
[220/2506] Building CXX object libc/startup/baremetal/CMakeFiles/libc.startup.baremetal.fini.dir/fini.cpp.obj
[221/2506] Generating header stdint.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/stdint.yaml
[222/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.rand_util.dir/rand_util.cpp.obj
[223/2506] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strncpy.dir/strncpy.cpp.obj
[224/2506] Copying CXX header __algorithm/max_element.h
[225/2506] Copying CXX header __charconv/to_chars.h
[226/2506] Copying CXX header __algorithm/pop_heap.h
[227/2506] Building CXX object libc/src/stdio/baremetal/CMakeFiles/libc.src.stdio.baremetal.putchar.dir/putchar.cpp.obj
[228/2506] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strncmp.dir/strncmp.cpp.obj
[229/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.obj
FAILED: libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.obj 
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gc9uy6l4/./bin/clang++ --target=armv7m-none-eabi -DLIBC_NAMESPACE=__llvm_libc_21_0_0_git -I/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc -isystem /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gc9uy6l4/include/armv7m-unknown-none-eabi --target=armv7m-none-eabi -Wno-atomic-alignment "-Dvfprintf(stream, format, vlist)=vprintf(format, vlist)" "-Dfprintf(stream, format, ...)=printf(format)" -D_LIBCPP_PRINT=1 -mthumb -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -ffunction-sections -fdata-sections -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gc9uy6l4/runtimes/runtimes-armv7m-none-eabi-bins=../../../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -Os -DNDEBUG --target=armv7m-none-eabi -DLIBC_QSORT_IMPL=LIBC_QSORT_HEAP_SORT -DLIBC_TYPES_TIME_T_IS_32_BIT -DLIBC_ADD_NULL_CHECKS "-DLIBC_MATH=(LIBC_MATH_SKIP_ACCURATE_PASS | LIBC_MATH_SMALL_TABLES)" -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_EXTERNAL -fpie -ffreestanding -DLIBC_FULL_BUILD -nostdlibinc -ffixed-point -fno-builtin -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 -DLIBC_COPT_PUBLIC_PACKAGING -MD -MT libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.obj -MF libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.obj.d -o libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.obj -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/stdlib/memalignment.cpp
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/stdlib/memalignment.cpp:20:3: error: unknown type name 'uintptr_t'
   20 |   uintptr_t addr = reinterpret_cast<uintptr_t>(p);
      |   ^
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/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.
[230/2506] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strspn.dir/strspn.cpp.obj
[231/2506] Copying CXX header __algorithm/merge.h
[232/2506] Copying CXX header __algorithm/max.h
[233/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.a64l.dir/a64l.cpp.obj
[234/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.labs.dir/labs.cpp.obj
[235/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.llabs.dir/llabs.cpp.obj
[236/2506] Building CXX object libc/src/stdio/baremetal/CMakeFiles/libc.src.stdio.baremetal.puts.dir/puts.cpp.obj
[237/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.srand.dir/srand.cpp.obj
[238/2506] Generating header inttypes.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/inttypes.yaml
[239/2506] Generating header uchar.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/uchar.yaml
[240/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.abs.dir/abs.cpp.obj
[241/2506] Generating header fenv.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/fenv.yaml
[242/2506] Generating header strings.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/strings.yaml
[243/2506] Building CXX object libc/src/strings/CMakeFiles/libc.src.strings.strcasecmp.dir/strcasecmp.cpp.obj
[244/2506] Generating header ctype.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/ctype.yaml
[245/2506] Building CXX object libc/src/strings/CMakeFiles/libc.src.strings.strncasecmp.dir/strncasecmp.cpp.obj
[246/2506] Building CXX object libc/src/errno/CMakeFiles/libc.src.errno.errno.dir/libc_errno.cpp.obj
[247/2506] Generating header stdckdint.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/stdckdint.yaml
[248/2506] Generating header setjmp.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/setjmp.yaml
[249/2506] Generating header locale.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/locale.yaml
[250/2506] Generating header wchar.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/wchar.yaml
[251/2506] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strstr.dir/strstr.cpp.obj
[252/2506] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strcasestr.dir/strcasestr.cpp.obj
[253/2506] Building CXX object libc/src/compiler/generic/CMakeFiles/libc.src.compiler.generic.__stack_chk_fail.dir/__stack_chk_fail.cpp.obj
[254/2506] Generating header time.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/time.yaml
[255/2506] Generating header stdlib.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/stdlib.yaml
[256/2506] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.iscanonicalf.dir/iscanonicalf.cpp.obj
[257/2506] Generating header stdbit.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/stdbit.yaml
[258/2506] Generating header string.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/string.yaml
[259/2506] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.iscanonical.dir/iscanonical.cpp.obj
Step 6 (build) failure: build (failure)
...
[220/2506] Building CXX object libc/startup/baremetal/CMakeFiles/libc.startup.baremetal.fini.dir/fini.cpp.obj
[221/2506] Generating header stdint.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/stdint.yaml
[222/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.rand_util.dir/rand_util.cpp.obj
[223/2506] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strncpy.dir/strncpy.cpp.obj
[224/2506] Copying CXX header __algorithm/max_element.h
[225/2506] Copying CXX header __charconv/to_chars.h
[226/2506] Copying CXX header __algorithm/pop_heap.h
[227/2506] Building CXX object libc/src/stdio/baremetal/CMakeFiles/libc.src.stdio.baremetal.putchar.dir/putchar.cpp.obj
[228/2506] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strncmp.dir/strncmp.cpp.obj
[229/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.obj
FAILED: libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.obj 
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gc9uy6l4/./bin/clang++ --target=armv7m-none-eabi -DLIBC_NAMESPACE=__llvm_libc_21_0_0_git -I/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc -isystem /var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gc9uy6l4/include/armv7m-unknown-none-eabi --target=armv7m-none-eabi -Wno-atomic-alignment "-Dvfprintf(stream, format, vlist)=vprintf(format, vlist)" "-Dfprintf(stream, format, ...)=printf(format)" -D_LIBCPP_PRINT=1 -mthumb -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -ffunction-sections -fdata-sections -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-gc9uy6l4/runtimes/runtimes-armv7m-none-eabi-bins=../../../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -Os -DNDEBUG --target=armv7m-none-eabi -DLIBC_QSORT_IMPL=LIBC_QSORT_HEAP_SORT -DLIBC_TYPES_TIME_T_IS_32_BIT -DLIBC_ADD_NULL_CHECKS "-DLIBC_MATH=(LIBC_MATH_SKIP_ACCURATE_PASS | LIBC_MATH_SMALL_TABLES)" -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_EXTERNAL -fpie -ffreestanding -DLIBC_FULL_BUILD -nostdlibinc -ffixed-point -fno-builtin -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 -DLIBC_COPT_PUBLIC_PACKAGING -MD -MT libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.obj -MF libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.obj.d -o libc/src/stdlib/CMakeFiles/libc.src.stdlib.memalignment.dir/memalignment.cpp.obj -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/stdlib/memalignment.cpp
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/stdlib/memalignment.cpp:20:3: error: unknown type name 'uintptr_t'
   20 |   uintptr_t addr = reinterpret_cast<uintptr_t>(p);
      |   ^
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/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.
[230/2506] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strspn.dir/strspn.cpp.obj
[231/2506] Copying CXX header __algorithm/merge.h
[232/2506] Copying CXX header __algorithm/max.h
[233/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.a64l.dir/a64l.cpp.obj
[234/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.labs.dir/labs.cpp.obj
[235/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.llabs.dir/llabs.cpp.obj
[236/2506] Building CXX object libc/src/stdio/baremetal/CMakeFiles/libc.src.stdio.baremetal.puts.dir/puts.cpp.obj
[237/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.srand.dir/srand.cpp.obj
[238/2506] Generating header inttypes.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/inttypes.yaml
[239/2506] Generating header uchar.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/uchar.yaml
[240/2506] Building CXX object libc/src/stdlib/CMakeFiles/libc.src.stdlib.abs.dir/abs.cpp.obj
[241/2506] Generating header fenv.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/fenv.yaml
[242/2506] Generating header strings.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/strings.yaml
[243/2506] Building CXX object libc/src/strings/CMakeFiles/libc.src.strings.strcasecmp.dir/strcasecmp.cpp.obj
[244/2506] Generating header ctype.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/ctype.yaml
[245/2506] Building CXX object libc/src/strings/CMakeFiles/libc.src.strings.strncasecmp.dir/strncasecmp.cpp.obj
[246/2506] Building CXX object libc/src/errno/CMakeFiles/libc.src.errno.errno.dir/libc_errno.cpp.obj
[247/2506] Generating header stdckdint.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/stdckdint.yaml
[248/2506] Generating header setjmp.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/setjmp.yaml
[249/2506] Generating header locale.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/locale.yaml
[250/2506] Generating header wchar.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/wchar.yaml
[251/2506] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strstr.dir/strstr.cpp.obj
[252/2506] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strcasestr.dir/strcasestr.cpp.obj
[253/2506] Building CXX object libc/src/compiler/generic/CMakeFiles/libc.src.compiler.generic.__stack_chk_fail.dir/__stack_chk_fail.cpp.obj
[254/2506] Generating header time.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/time.yaml
[255/2506] Generating header stdlib.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/stdlib.yaml
[256/2506] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.iscanonicalf.dir/iscanonicalf.cpp.obj
[257/2506] Generating header stdbit.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/stdbit.yaml
[258/2506] Generating header string.h from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/runtimes/../libc/include/string.yaml
[259/2506] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.iscanonical.dir/iscanonical.cpp.obj

```

</details>

https://github.com/llvm/llvm-project/pull/145120