Clang 18.1.5 errors on AVX vector return of type 'F' (aka 'Vec<16, float>') without 'evex512' enabled changes the ABI

[FireBurn]

This has affected compiling libreoffice and nodejs so far. Clang 18.1.3 built these packages fine, so I think the change was added in 18.1.4 or 18.1.5 - which seems strange as I'd expect only bug fixes

LibreOffice

[CUS] writerfilter/source
S=/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2 && I=$S/instdir && W=$S/workdir &&  mkdir -p $W/GenCxxObject/UnpackedTarball/skia/modules/skcms/ $W/Dep/GenCxxObject/UnpackedTarball/skia/modules/skcms/ && cd /var/tmp/portage
/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2 && CCACHE_CPP2=1       x86_64-pc-linux-gnu-clang++ -DBOOST_ERROR_CODE_HEADER_ONLY -DBOOST_SYSTEM_NO_DEPRECATED -DCPPU_ENV=gcc3 -DLINUX -DNDEBUG -DOSL_DEBUG_LEVEL=0 -DUNIX -DUNX -DX86_64 -D_PTHR
EADS -D_REENTRANT  -DSKIA_IMPLEMENTATION=1 -DSKIA_DLL -DSK_USER_CONFIG_HEADER="<$S/config_host/config_skia.h>"  -DSK_CPU_SSE_LEVEL=SK_CPU_SSE_LEVEL_SSE2 -DSK_ENABLE_SKSL_IN_RASTER_PIPELINE  -DSYSTEM_EXPAT  -DSYSTEM_ZLIB -DZLIB_CONST   -fvisibility=hidd
en         -Wall -Wno-missing-braces -Wendif-labels -Wextra -Wundef -Wunreachable-code -Wshadow -Wunused-macros -Wembedded-directive -finput-charset=UTF-8 -fmessage-length=0 -fno-common -pipe -fstack-protector-strong -Wdeprecated-copy-dtor -Wimplicit-f
allthrough -Wunused-exception-parameter -Wrange-loop-analysis -fvisibility-inlines-hidden -fPIC -Wshadow -Woverloaded-virtual -std=c++20 -pthread -O3 -pipe -march=native -O2 -fexceptions -O2 -w -DLIBO_INTERNAL_ONLY  -c $W/UnpackedTarball/skia/modules/s
kcms/skcms.cpp -o $W/GenCxxObject/UnpackedTarball/skia/modules/skcms/skcms.o  -I$S/include -I/opt/openjdk-bin-21.0.3_p9/include -I/opt/openjdk-bin-21.0.3_p9/include/linux -I$S/config_host     -isystem /usr/include/freetype2     -isystem /usr/include/fr
eetype2          -isystem /usr/include/libpng16  -I$W/UnpackedTarball/skia -I$W/UnpackedTarball/skia/modules/skcms/ -I$W/UnpackedTarball/skia/third_party/vulkanmemoryallocator/ -I$W/UnpackedTarball/skia/include/third_party/vulkan/ -I$S/external/skia/in
c/    
In file included from /var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/skcms.cpp:2470:
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:764:21: error: AVX vector return of type 'F' (aka 'Vec<16, float>') without 'evex512' enabled changes the ABI
  764 |                 a = F_from_U8(load<U8>(src + 1*i));
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:768:29: error: AVX vector return of type 'F' (aka 'Vec<16, float>') without 'evex512' enabled changes the ABI
  768 |                 r = g = b = F_from_U8(load<U8>(src + 1*i));
      |                             ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:774:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  774 |                 r = cast<F>((abgr >> 12) & 0xf) * (1/15.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:775:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  775 |                 g = cast<F>((abgr >>  8) & 0xf) * (1/15.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:776:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  776 |                 b = cast<F>((abgr >>  4) & 0xf) * (1/15.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:777:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  777 |                 a = cast<F>((abgr >>  0) & 0xf) * (1/15.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:783:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  783 |                 r = cast<F>(rgb & (uint16_t)(31<< 0)) * (1.0f / (31<< 0));
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:784:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  784 |                 g = cast<F>(rgb & (uint16_t)(63<< 5)) * (1.0f / (63<< 5));
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:785:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  785 |                 b = cast<F>(rgb & (uint16_t)(31<<11)) * (1.0f / (31<<11));
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:807:29: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsign
ed int' values) without 'evex512' enabled changes the ABI
  807 |                 r = cast<F>(load_3<U32>(rgb+0) ) * (1/255.0f);
      |                             ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:807:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  807 |                 r = cast<F>(load_3<U32>(rgb+0) ) * (1/255.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:808:29: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsign
ed int' values) without 'evex512' enabled changes the ABI
  808 |                 g = cast<F>(load_3<U32>(rgb+1) ) * (1/255.0f);
      |                             ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:808:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  808 |                 g = cast<F>(load_3<U32>(rgb+1) ) * (1/255.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:809:29: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsigned int' values) without 'evex512' enabled changes the ABI
  809 |                 b = cast<F>(load_3<U32>(rgb+2) ) * (1/255.0f);
      |                             ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:809:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  809 |                 b = cast<F>(load_3<U32>(rgb+2) ) * (1/255.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:814:28: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsigned int' values) without 'evex512' enabled changes the ABI
  814 |                 U32 rgba = load<U32>(src + 4*i);
      |                            ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:816:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  816 |                 r = cast<F>((rgba >>  0) & 0xff) * (1/255.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:817:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  817 |                 g = cast<F>((rgba >>  8) & 0xff) * (1/255.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:818:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  818 |                 b = cast<F>((rgba >> 16) & 0xff) * (1/255.0f);
      |                     ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]

Nodejs

FAILED: obj/deps/simdjson/simdjson.simdjson.o 
clang++ -MMD -MF obj/deps/simdjson/simdjson.simdjson.o.d -D_GLIBCXX_USE_CXX11_ABI=1 -DNODE_OPENSSL_CONF_NAME=nodejs_conf -DNODE_OPENSSL_CERT_STORE -DICU_NO_USER_DATA_OVERRIDE -D__STDC_FORMAT_MACROS -I../../deps/simdjson -pthread -Wall -Wextra -Wno-unus
ed-parameter -m64 -fno-omit-frame-pointer -O3 -pipe -march=native -fno-rtti -fno-exceptions -std=gnu++17  -c ../../deps/simdjson/simdjson.cpp -o obj/deps/simdjson/simdjson.simdjson.o
../../deps/simdjson/simdjson.cpp:20526:14: error: always_inline function '_mm512_loadu_si512' requires target feature 'evex512', but would be inlined into function 'load' that is compiled without support for 'evex512'
 20526 |       return _mm512_loadu_si512(reinterpret_cast<const __m512i *>(values));
       |              ^
../../deps/simdjson/simdjson.cpp:20526:14: error: AVX vector return of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20526:14: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20652:51: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
 20652 |     simdjson_inline simd8(const __m512i _value) : base8_numeric<uint8_t>(_value) {}
       |                                                   ^
../../deps/simdjson/simdjson.cpp:20546:59: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
 20546 |     simdjson_inline base8_numeric(const __m512i _value) : base8<T>(_value) {}
       |                                                           ^
../../deps/simdjson/simdjson.cpp:20492:51: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
 20492 |     simdjson_inline base8(const __m512i _value) : base<simd8<T>>(_value) {}
       |                                                   ^
../../deps/simdjson/simdjson.cpp:20717:52: error: always_inline function '_mm512_movepi8_mask' requires target feature 'evex512', but would be inlined into function 'is_ascii' that is compiled without support for 'evex512'
 20717 |     simdjson_inline bool is_ascii() const { return _mm512_movepi8_mask(*this) == 0; }
       |                                                    ^
../../deps/simdjson/simdjson.cpp:20717:52: error: AVX vector argument of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20473:71: error: always_inline function '_mm512_or_si512' requires target feature 'evex512', but would be inlined into function 'operator|' that is compiled without support for 'evex512'
 20473 |     simdjson_inline Child operator|(const Child other) const { return _mm512_or_si512(*this, other); }
       |                                                                       ^
../../deps/simdjson/simdjson.cpp:20473:71: error: AVX vector argument of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20473:71: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20504:14: error: '__builtin_ia32_palignr512' needs target feature avx512bw,evex512
 20504 |       return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift);
       |              ^
/usr/lib/llvm/18/bin/../../../../lib/clang/18/include/avx512bwintrin.h:1977:13: note: expanded from macro '_mm512_alignr_epi8'
 1977 |   ((__m512i)__builtin_ia32_palignr512((__v64qi)(__m512i)(A), \
      |             ^
../../deps/simdjson/simdjson.cpp:20504:78: error: always_inline function '_mm512_set_epi64' requires target feature 'evex512', but would be inlined into function 'prev' that is compiled without support for 'evex512'
 20504 |       return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift);
       |                                                                              ^
../../deps/simdjson/simdjson.cpp:20504:78: error: AVX vector return of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20504:40: error: always_inline function '_mm512_permutex2var_epi64' requires target feature 'evex512', but would be inlined into function 'prev' that is compiled without support for 'evex512'
 20504 |       return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift);
       |                                        ^
../../deps/simdjson/simdjson.cpp:20504:40: error: AVX vector argument of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20504:14: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
 20504 |       return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift);
       |              ^
/usr/lib/llvm/18/bin/../../../../lib/clang/18/include/avx512bwintrin.h:1977:3: note: expanded from macro '_mm512_alignr_epi8'
 1977 |   ((__m512i)__builtin_ia32_palignr512((__v64qi)(__m512i)(A), \
      |   ^
../../deps/simdjson/simdjson.cpp:20725:72: error: always_inline function '_mm512_srli_epi16' requires target feature 'evex512', but would be inlined into function 'shr' that is compiled without support for 'evex512'
 20725 |     simdjson_inline simd8<uint8_t> shr() const { return simd8<uint8_t>(_mm512_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); }
       |                                                                        ^
../../deps/simdjson/simdjson.cpp:20725:72: error: AVX vector argument of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
[229/1894] clang -MMD -MF obj/deps/llhttp/src/llhttp.llhttp.o.d -D_GLIBCXX_USE_CXX11_ABI=1 -DNODE_OPENSSL_CONF_NAME=nodejs_conf -DNODE_OPENSSL_CERT_STORE -DICU_NO_USER_DATA_OVERRIDE -D__STDC_FORMAT_MACROS -I../../deps/llhttp -I../../deps/llhttp/include -pthread -Wall -Wextra -Wno-unused-parameter -m64 -fno-omit-frame-pointer -O3 -pipe -march=native  -c ../../deps/llhttp/src/llhttp.c -o obj/deps/llhttp/src/llhttp.llhttp.o
../../deps/llhttp/src/llhttp.c:2635:13: warning: unused variable 'avail' [-Wunused-variable]
 2635 |         int avail;
      |             ^~~~~
../../deps/llhttp/src/llhttp.c:2865:13: warning: unused variable 'avail' [-Wunused-variable]
 2865 |         int avail;
      |             ^~~~~
2 warnings generated.

[jcestibariz]

I got similar errors building chromium-124.0.6367.201 with clang version 18.1.5

FAILED: obj/skia/skcms_TransformSkx/skcms_TransformSkx.o 
x86_64-pc-linux-gnu-clang++ -MD -MF obj/skia/skcms_TransformSkx/skcms_TransformSkx.o.d -DUSE_UDEV -DUSE_AURA=1 -DUSE_GLIB=1 -DUSE_OZONE=1 -DOFFICIAL_BUILD -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNO_UNWIND_TABLES -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS -D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS -DCR_LIBCXX_REVISION=80307e66e74bae927fb8709a549859e777e3bf0b -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DSK_ENABLE_SKSL -DSK_UNTIL_CRBUG_1187654_IS_FIXED -DSK_USER_CONFIG_HEADER=\"../../skia/config/SkUserConfig.h\" -DSK_WIN_FONTMGR_NO_SIMULATIONS -DSK_DISABLE_LEGACY_INIT_DECODERS -DSK_SLUG_DISABLE_LEGACY_DESERIALIZE -DSK_DISABLE_LEGACY_VULKAN_BACKENDSEMAPHORE -DSK_DISABLE_LEGACY_CREATE_CHARACTERIZATION -DSK_DISABLE_LEGACY_VULKAN_MUTABLE_TEXTURE_STATE -DSK_CODEC_DECODES_JPEG -DSK_ENCODE_JPEG -DSK_ENCODE_PNG -DSK_ENCODE_WEBP -DSK_GANESH -DSK_GPU_WORKAROUNDS_HEADER=\"gpu/config/gpu_driver_bug_workaround_autogen.h\" -DSK_GL -DSK_VULKAN=1 -DSK_GRAPHITE -DSK_DAWN -DVK_USE_PLATFORM_XCB_KHR -DVK_USE_PLATFORM_WAYLAND_KHR -DIS_SKIA_IMPL=1 -DSKIA_IMPLEMENTATION=1 -DSK_TYPEFACE_FACTORY_FREETYPE -DSK_FONTMGR_FREETYPE_EMPTY_AVAILABLE -DSK_GAMMA_EXPONENT=1.2 -DSK_GAMMA_CONTRAST=0.2 -DSK_DEFAULT_FONT_CACHE_LIMIT=20971520 -I../.. -Igen -I../../buildtools/third_party/libc++ -I../../third_party/skia -Igen/third_party/skia -I../../third_party/wuffs/src/release/c -I../../third_party/vulkan/include -I../../third_party/vulkan-deps/vulkan-headers/src/include -I../../third_party/wayland/src/src -I../../third_party/wayland/include/src -Igen/third_party/dawn/include -I../../third_party/dawn/include -w -mavx512f -mavx512dq -mavx512cd -mavx512bw -mavx512vl -std=c11 -fno-delete-null-pointer-checks -fno-ident -fno-strict-aliasing -fstack-protector -fno-unwind-tables -fno-asynchronous-unwind-tables -fPIC -pthread -fcolor-diagnostics -fmerge-all-constants -flto=thin -fno-split-lto-unit -fwhole-program-vtables -fcomplete-member-pointers -no-canonical-prefixes -ftrivial-auto-var-init=pattern -fno-omit-frame-pointer -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -Wno-redundant-parens -Wall -Wno-unused-variable -Wno-c++11-narrowing -Wno-unused-but-set-variable -Wno-misleading-indentation -Wno-missing-field-initializers -Wno-unused-parameter -Wno-psabi -Wloop-analysis -Wno-unneeded-internal-declaration -Wno-ignored-pragma-optimize -Wno-deprecated-builtins -Wno-bitfield-constant-conversion -Wno-deprecated-this-capture -Wno-invalid-offsetof -Wno-vla-extension -Wno-thread-safety-reference-return -std=c++20 -Wno-trigraphs -gsimple-template-names -fno-exceptions -fno-rtti -nostdinc++ -isystem../../third_party/libc++/src/include -isystem../../third_party/libc++abi/src/include -fvisibility-inlines-hidden -Wenum-compare-conditional -Wno-c++11-narrowing-const-reference -march=native -O2 -pipe -Wno-unknown-warning-option -c ../../third_party/skia/modules/skcms/src/skcms_TransformSkx.cc -o obj/skia/skcms_TransformSkx/skcms_TransformSkx.o
In file included from ../../third_party/skia/modules/skcms/src/skcms_TransformSkx.cc:53:
../../third_party/skia/modules/skcms/src/Transform_inl.h:852:9: error: AVX vector return of type 'F' (aka 'Vec<16, float>') without 'evex512' enabled changes the ABI
  852 |     a = F_from_U8(load<U8>(src + 1*i));
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:608:12: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  608 |     return cast<F>(v) * (1/255.0f);
      |            ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:856:17: error: AVX vector return of type 'F' (aka 'Vec<16, float>') without 'evex512' enabled changes the ABI
  856 |     r = g = b = F_from_U8(load<U8>(src + 1*i));
      |                 ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:862:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  862 |     r = cast<F>((abgr >> 12) & 0xf) * (1/15.0f);
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:863:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  863 |     g = cast<F>((abgr >>  8) & 0xf) * (1/15.0f);
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:864:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  864 |     b = cast<F>((abgr >>  4) & 0xf) * (1/15.0f);
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:865:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  865 |     a = cast<F>((abgr >>  0) & 0xf) * (1/15.0f);
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:871:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  871 |     r = cast<F>(rgb & (uint16_t)(31<< 0)) * (1.0f / (31<< 0));
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:872:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  872 |     g = cast<F>(rgb & (uint16_t)(63<< 5)) * (1.0f / (63<< 5));
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:873:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  873 |     b = cast<F>(rgb & (uint16_t)(31<<11)) * (1.0f / (31<<11));
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:895:17: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsigned int' values) without 'evex512' enabled changes the ABI
  895 |     r = cast<F>(load_3<U32>(rgb+0) ) * (1/255.0f);
      |                 ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:895:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  895 |     r = cast<F>(load_3<U32>(rgb+0) ) * (1/255.0f);
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:896:17: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsigned int' values) without 'evex512' enabled changes the ABI
  896 |     g = cast<F>(load_3<U32>(rgb+1) ) * (1/255.0f);
      |                 ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:896:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  896 |     g = cast<F>(load_3<U32>(rgb+1) ) * (1/255.0f);
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:897:17: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsigned int' values) without 'evex512' enabled changes the ABI
  897 |     b = cast<F>(load_3<U32>(rgb+2) ) * (1/255.0f);
      |                 ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:897:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  897 |     b = cast<F>(load_3<U32>(rgb+2) ) * (1/255.0f);
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:902:16: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsigned int' values) without 'evex512' enabled changes the ABI
  902 |     U32 rgba = load<U32>(src + 4*i);
      |                ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:904:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  904 |     r = cast<F>((rgba >>  0) & 0xff) * (1/255.0f);
      |         ^
../../third_party/skia/modules/skcms/src/Transform_inl.h:905:9: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  905 |     g = cast<F>((rgba >>  8) & 0xff) * (1/255.0f);
      |         ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.

[contyk]

I hit the same issue with nodejs-22.1.0 with 18.1.5; it previously built fine with 18.1.4, though. Another, smaller package I'm hitting this with is highway-1.0.7.

This only happens with -march=native; things build fine with -march=alderlake on my i9-12900KS, so this is probably about feature mis-detection.

I'll downgrade to 18.1.4, verify things work again and check what native expands to, if I can pinpoint anything specific...

[FireBurn]

Thanks for ruling out 18.1.4, I'll update the title

There's only 30 commits between 18.1.4. and 18.1.5 llvmorg-18.1.4...llvmorg-18.1.5

[FireBurn]

And I'm going to guess it's this one a7b8b89#diff-a812ee07ee20ebe79db432b822c23b87e5b5880f0917bc7ee3921341bafcb8e3R1770

[contyk]

I was just going to point at the same commit as the possible culprit here, yes.

[FireBurn]

I'm reverting it locally, will see if that fixes things

[FireBurn]

Looks like it's already fixed in main 87f3407

[llvmbot]

@llvm/issue-subscribers-backend-x86

Author: Mike Lothian (FireBurn)

This has affected compiling libreoffice and nodejs so far. Clang 18.1.3 built these packages fine, so I think the change was added in 18.1.4 or 18.1.5 - which seems strange as I'd expect only bug fixes

LibreOffice

[CUS] writerfilter/source
S=/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2 && I=$S/instdir && W=$S/workdir &&  mkdir -p $W/GenCxxObject/UnpackedTarball/skia/modules/skcms/ $W/Dep/GenCxxObject/UnpackedTarball/skia/modules/skcms/ && cd /var/tmp/portage
/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2 && CCACHE_CPP2=1       x86_64-pc-linux-gnu-clang++ -DBOOST_ERROR_CODE_HEADER_ONLY -DBOOST_SYSTEM_NO_DEPRECATED -DCPPU_ENV=gcc3 -DLINUX -DNDEBUG -DOSL_DEBUG_LEVEL=0 -DUNIX -DUNX -DX86_64 -D_PTHR
EADS -D_REENTRANT  -DSKIA_IMPLEMENTATION=1 -DSKIA_DLL -DSK_USER_CONFIG_HEADER="<$S/config_host/config_skia.h>"  -DSK_CPU_SSE_LEVEL=SK_CPU_SSE_LEVEL_SSE2 -DSK_ENABLE_SKSL_IN_RASTER_PIPELINE  -DSYSTEM_EXPAT  -DSYSTEM_ZLIB -DZLIB_CONST   -fvisibility=hidd
en         -Wall -Wno-missing-braces -Wendif-labels -Wextra -Wundef -Wunreachable-code -Wshadow -Wunused-macros -Wembedded-directive -finput-charset=UTF-8 -fmessage-length=0 -fno-common -pipe -fstack-protector-strong -Wdeprecated-copy-dtor -Wimplicit-f
allthrough -Wunused-exception-parameter -Wrange-loop-analysis -fvisibility-inlines-hidden -fPIC -Wshadow -Woverloaded-virtual -std=c++20 -pthread -O3 -pipe -march=native -O2 -fexceptions -O2 -w -DLIBO_INTERNAL_ONLY  -c $W/UnpackedTarball/skia/modules/s
kcms/skcms.cpp -o $W/GenCxxObject/UnpackedTarball/skia/modules/skcms/skcms.o  -I$S/include -I/opt/openjdk-bin-21.0.3_p9/include -I/opt/openjdk-bin-21.0.3_p9/include/linux -I$S/config_host     -isystem /usr/include/freetype2     -isystem /usr/include/fr
eetype2          -isystem /usr/include/libpng16  -I$W/UnpackedTarball/skia -I$W/UnpackedTarball/skia/modules/skcms/ -I$W/UnpackedTarball/skia/third_party/vulkanmemoryallocator/ -I$W/UnpackedTarball/skia/include/third_party/vulkan/ -I$S/external/skia/in
c/    
In file included from /var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/skcms.cpp:2470:
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:764:21: error: AVX vector return of type 'F' (aka 'Vec<16, float>') without 'evex512' enabled changes the ABI
  764 |                 a = F_from_U8(load<U8>(src + 1*i));
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:768:29: error: AVX vector return of type 'F' (aka 'Vec<16, float>') without 'evex512' enabled changes the ABI
  768 |                 r = g = b = F_from_U8(load<U8>(src + 1*i));
      |                             ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:774:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  774 |                 r = cast<F>((abgr >> 12) & 0xf) * (1/15.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:775:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  775 |                 g = cast<F>((abgr >>  8) & 0xf) * (1/15.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:776:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  776 |                 b = cast<F>((abgr >>  4) & 0xf) * (1/15.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:777:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  777 |                 a = cast<F>((abgr >>  0) & 0xf) * (1/15.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:783:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  783 |                 r = cast<F>(rgb & (uint16_t)(31<< 0)) * (1.0f / (31<< 0));
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:784:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  784 |                 g = cast<F>(rgb & (uint16_t)(63<< 5)) * (1.0f / (63<< 5));
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:785:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  785 |                 b = cast<F>(rgb & (uint16_t)(31<<11)) * (1.0f / (31<<11));
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:807:29: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsign
ed int' values) without 'evex512' enabled changes the ABI
  807 |                 r = cast<F>(load_3<U32>(rgb+0) ) * (1/255.0f);
      |                             ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:807:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values
) without 'evex512' enabled changes the ABI
  807 |                 r = cast<F>(load_3<U32>(rgb+0) ) * (1/255.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:808:29: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsign
ed int' values) without 'evex512' enabled changes the ABI
  808 |                 g = cast<F>(load_3<U32>(rgb+1) ) * (1/255.0f);
      |                             ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:808:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  808 |                 g = cast<F>(load_3<U32>(rgb+1) ) * (1/255.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:809:29: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsigned int' values) without 'evex512' enabled changes the ABI
  809 |                 b = cast<F>(load_3<U32>(rgb+2) ) * (1/255.0f);
      |                             ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:809:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  809 |                 b = cast<F>(load_3<U32>(rgb+2) ) * (1/255.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:814:28: error: AVX vector return of type 'unsigned int __attribute__((ext_vector_type(16)))' (vector of 16 'unsigned int' values) without 'evex512' enabled changes the ABI
  814 |                 U32 rgba = load<U32>(src + 4*i);
      |                            ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:816:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  816 |                 r = cast<F>((rgba >>  0) & 0xff) * (1/255.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:817:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  817 |                 g = cast<F>((rgba >>  8) & 0xff) * (1/255.0f);
      |                     ^
/var/tmp/portage/app-office/libreoffice-24.2.3.2/work/libreoffice-24.2.3.2/workdir/UnpackedTarball/skia/modules/skcms/src/Transform_inl.h:818:21: error: AVX vector return of type 'float __attribute__((ext_vector_type(16)))' (vector of 16 'float' values) without 'evex512' enabled changes the ABI
  818 |                 b = cast<F>((rgba >> 16) & 0xff) * (1/255.0f);
      |                     ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]

Nodejs

FAILED: obj/deps/simdjson/simdjson.simdjson.o 
clang++ -MMD -MF obj/deps/simdjson/simdjson.simdjson.o.d -D_GLIBCXX_USE_CXX11_ABI=1 -DNODE_OPENSSL_CONF_NAME=nodejs_conf -DNODE_OPENSSL_CERT_STORE -DICU_NO_USER_DATA_OVERRIDE -D__STDC_FORMAT_MACROS -I../../deps/simdjson -pthread -Wall -Wextra -Wno-unus
ed-parameter -m64 -fno-omit-frame-pointer -O3 -pipe -march=native -fno-rtti -fno-exceptions -std=gnu++17  -c ../../deps/simdjson/simdjson.cpp -o obj/deps/simdjson/simdjson.simdjson.o
../../deps/simdjson/simdjson.cpp:20526:14: error: always_inline function '_mm512_loadu_si512' requires target feature 'evex512', but would be inlined into function 'load' that is compiled without support for 'evex512'
 20526 |       return _mm512_loadu_si512(reinterpret_cast<const __m512i *>(values));
       |              ^
../../deps/simdjson/simdjson.cpp:20526:14: error: AVX vector return of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20526:14: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20652:51: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
 20652 |     simdjson_inline simd8(const __m512i _value) : base8_numeric<uint8_t>(_value) {}
       |                                                   ^
../../deps/simdjson/simdjson.cpp:20546:59: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
 20546 |     simdjson_inline base8_numeric(const __m512i _value) : base8<T>(_value) {}
       |                                                           ^
../../deps/simdjson/simdjson.cpp:20492:51: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
 20492 |     simdjson_inline base8(const __m512i _value) : base<simd8<T>>(_value) {}
       |                                                   ^
../../deps/simdjson/simdjson.cpp:20717:52: error: always_inline function '_mm512_movepi8_mask' requires target feature 'evex512', but would be inlined into function 'is_ascii' that is compiled without support for 'evex512'
 20717 |     simdjson_inline bool is_ascii() const { return _mm512_movepi8_mask(*this) == 0; }
       |                                                    ^
../../deps/simdjson/simdjson.cpp:20717:52: error: AVX vector argument of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20473:71: error: always_inline function '_mm512_or_si512' requires target feature 'evex512', but would be inlined into function 'operator|' that is compiled without support for 'evex512'
 20473 |     simdjson_inline Child operator|(const Child other) const { return _mm512_or_si512(*this, other); }
       |                                                                       ^
../../deps/simdjson/simdjson.cpp:20473:71: error: AVX vector argument of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20473:71: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20504:14: error: '__builtin_ia32_palignr512' needs target feature avx512bw,evex512
 20504 |       return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift);
       |              ^
/usr/lib/llvm/18/bin/../../../../lib/clang/18/include/avx512bwintrin.h:1977:13: note: expanded from macro '_mm512_alignr_epi8'
 1977 |   ((__m512i)__builtin_ia32_palignr512((__v64qi)(__m512i)(A), \
      |             ^
../../deps/simdjson/simdjson.cpp:20504:78: error: always_inline function '_mm512_set_epi64' requires target feature 'evex512', but would be inlined into function 'prev' that is compiled without support for 'evex512'
 20504 |       return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift);
       |                                                                              ^
../../deps/simdjson/simdjson.cpp:20504:78: error: AVX vector return of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20504:40: error: always_inline function '_mm512_permutex2var_epi64' requires target feature 'evex512', but would be inlined into function 'prev' that is compiled without support for 'evex512'
 20504 |       return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift);
       |                                        ^
../../deps/simdjson/simdjson.cpp:20504:40: error: AVX vector argument of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
../../deps/simdjson/simdjson.cpp:20504:14: error: AVX vector argument of type 'const __m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
 20504 |       return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift);
       |              ^
/usr/lib/llvm/18/bin/../../../../lib/clang/18/include/avx512bwintrin.h:1977:3: note: expanded from macro '_mm512_alignr_epi8'
 1977 |   ((__m512i)__builtin_ia32_palignr512((__v64qi)(__m512i)(A), \
      |   ^
../../deps/simdjson/simdjson.cpp:20725:72: error: always_inline function '_mm512_srli_epi16' requires target feature 'evex512', but would be inlined into function 'shr' that is compiled without support for 'evex512'
 20725 |     simdjson_inline simd8<uint8_t> shr() const { return simd8<uint8_t>(_mm512_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); }
       |                                                                        ^
../../deps/simdjson/simdjson.cpp:20725:72: error: AVX vector argument of type '__m512i' (vector of 8 'long long' values) without 'evex512' enabled changes the ABI
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
[229/1894] clang -MMD -MF obj/deps/llhttp/src/llhttp.llhttp.o.d -D_GLIBCXX_USE_CXX11_ABI=1 -DNODE_OPENSSL_CONF_NAME=nodejs_conf -DNODE_OPENSSL_CERT_STORE -DICU_NO_USER_DATA_OVERRIDE -D__STDC_FORMAT_MACROS -I../../deps/llhttp -I../../deps/llhttp/include -pthread -Wall -Wextra -Wno-unused-parameter -m64 -fno-omit-frame-pointer -O3 -pipe -march=native  -c ../../deps/llhttp/src/llhttp.c -o obj/deps/llhttp/src/llhttp.llhttp.o
../../deps/llhttp/src/llhttp.c:2635:13: warning: unused variable 'avail' [-Wunused-variable]
 2635 |         int avail;
      |             ^~~~~
../../deps/llhttp/src/llhttp.c:2865:13: warning: unused variable 'avail' [-Wunused-variable]
 2865 |         int avail;
      |             ^~~~~
2 warnings generated.

[contyk]

I confirm this is fixed in 18.1.6.