[libc-commits] [libc] [llvm] [libc][math] Add floating-point cast independent of compiler runtime (PR #105152)
LLVM Continuous Integration via libc-commits
libc-commits at lists.llvm.org
Mon Sep 23 11:13:20 PDT 2024
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 `libc,utils` at step 4 "annotate".
Full details are available at: https://lab.llvm.org/buildbot/#/builders/11/builds/5496
<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)
...
[159/1693] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strstr.dir/strstr.cpp.obj
[160/1693] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_trailing_ones_uc.dir/stdc_trailing_ones_uc.cpp.obj
[161/1693] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_trailing_ones_us.dir/stdc_trailing_ones_us.cpp.obj
[162/1693] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strcasestr.dir/strcasestr.cpp.obj
[163/1693] Building CXX object libc/src/fenv/CMakeFiles/libc.src.fenv.fegetexcept.dir/fegetexcept.cpp.obj
[164/1693] Building CXX object libc/src/assert/generic/CMakeFiles/libc.src.assert.generic.__assert_fail.dir/__assert_fail.cpp.obj
[165/1693] Building CXX object libc/src/inttypes/CMakeFiles/libc.src.inttypes.strtoimax.dir/strtoimax.cpp.obj
[166/1693] Building CXX object libc/src/inttypes/CMakeFiles/libc.src.inttypes.strtoumax.dir/strtoumax.cpp.obj
[167/1693] Building CXX object libc/src/__support/StringUtil/CMakeFiles/libc.src.__support.StringUtil.error_to_string.dir/error_to_string.cpp.obj
[168/1693] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.fmul.dir/fmul.cpp.obj
FAILED: libc/src/math/generic/CMakeFiles/libc.src.math.generic.fmul.dir/fmul.cpp.obj
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-i5v923ya/bin/clang++ --target=armv6m-none-eabi -DLIBC_NAMESPACE=__llvm_libc_20_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-i5v923ya/include/armv6m-unknown-none-eabi --target=armv6m-none-eabi -mthumb -Wno-atomic-alignment "-Dvfprintf(stream, format, vlist)=vprintf(format, vlist)" "-Dfprintf(stream, format, ...)=printf(format)" "-Dtimeval=struct timeval{int tv_sec; int tv_usec;}" "-Dgettimeofday(tv, tz)" -D_LIBCPP_PRINT=1 -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-i5v923ya/runtimes/runtimes-armv6m-none-eabi-bins=../../../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -Os -DNDEBUG -std=gnu++17 --target=armv6m-none-eabi -DLIBC_QSORT_IMPL=LIBC_QSORT_HEAP_SORT -DLIBC_TYPES_TIME_T_IS_32_BIT -DLIBC_ADD_NULL_CHECKS -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 -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -O3 -DLIBC_COPT_PUBLIC_PACKAGING -MD -MT libc/src/math/generic/CMakeFiles/libc.src.math.generic.fmul.dir/fmul.cpp.obj -MF libc/src/math/generic/CMakeFiles/libc.src.math.generic.fmul.dir/fmul.cpp.obj.d -o libc/src/math/generic/CMakeFiles/libc.src.math.generic.fmul.dir/fmul.cpp.obj -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/fmul.cpp
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/fmul.cpp:12:
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/generic/mul.h:16:
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/BasicOperations.h:14:
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/dyadic_float.h:108:27: error: use of undeclared identifier 'float16'; did you mean 'float'?
108 | using FPBits = FPBits<float16>;
| ^~~~~~~
| float
1 error generated.
[169/1693] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalize.dir/canonicalize.cpp.obj
FAILED: libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalize.dir/canonicalize.cpp.obj
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-i5v923ya/bin/clang++ --target=armv6m-none-eabi -DLIBC_NAMESPACE=__llvm_libc_20_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-i5v923ya/include/armv6m-unknown-none-eabi --target=armv6m-none-eabi -mthumb -Wno-atomic-alignment "-Dvfprintf(stream, format, vlist)=vprintf(format, vlist)" "-Dfprintf(stream, format, ...)=printf(format)" "-Dtimeval=struct timeval{int tv_sec; int tv_usec;}" "-Dgettimeofday(tv, tz)" -D_LIBCPP_PRINT=1 -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-i5v923ya/runtimes/runtimes-armv6m-none-eabi-bins=../../../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -Os -DNDEBUG -std=gnu++17 --target=armv6m-none-eabi -DLIBC_QSORT_IMPL=LIBC_QSORT_HEAP_SORT -DLIBC_TYPES_TIME_T_IS_32_BIT -DLIBC_ADD_NULL_CHECKS -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 -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -O3 -DLIBC_COPT_PUBLIC_PACKAGING -MD -MT libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalize.dir/canonicalize.cpp.obj -MF libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalize.dir/canonicalize.cpp.obj.d -o libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalize.dir/canonicalize.cpp.obj -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalize.cpp
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalize.cpp:10:
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/BasicOperations.h:14:
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/dyadic_float.h:108:27: error: use of undeclared identifier 'float16'; did you mean 'float'?
108 | using FPBits = FPBits<float16>;
| ^~~~~~~
| float
1 error generated.
[170/1693] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizef.dir/canonicalizef.cpp.obj
FAILED: libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizef.dir/canonicalizef.cpp.obj
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-i5v923ya/bin/clang++ --target=armv6m-none-eabi -DLIBC_NAMESPACE=__llvm_libc_20_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-i5v923ya/include/armv6m-unknown-none-eabi --target=armv6m-none-eabi -mthumb -Wno-atomic-alignment "-Dvfprintf(stream, format, vlist)=vprintf(format, vlist)" "-Dfprintf(stream, format, ...)=printf(format)" "-Dtimeval=struct timeval{int tv_sec; int tv_usec;}" "-Dgettimeofday(tv, tz)" -D_LIBCPP_PRINT=1 -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-i5v923ya/runtimes/runtimes-armv6m-none-eabi-bins=../../../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -Os -DNDEBUG -std=gnu++17 --target=armv6m-none-eabi -DLIBC_QSORT_IMPL=LIBC_QSORT_HEAP_SORT -DLIBC_TYPES_TIME_T_IS_32_BIT -DLIBC_ADD_NULL_CHECKS -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 -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -O3 -DLIBC_COPT_PUBLIC_PACKAGING -MD -MT libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizef.dir/canonicalizef.cpp.obj -MF libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizef.dir/canonicalizef.cpp.obj.d -o libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizef.dir/canonicalizef.cpp.obj -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalizef.cpp
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalizef.cpp:10:
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/BasicOperations.h:14:
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/dyadic_float.h:108:27: error: use of undeclared identifier 'float16'; did you mean 'float'?
108 | using FPBits = FPBits<float16>;
| ^~~~~~~
| float
1 error generated.
[171/1693] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizel.dir/canonicalizel.cpp.obj
FAILED: libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizel.dir/canonicalizel.cpp.obj
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-i5v923ya/bin/clang++ --target=armv6m-none-eabi -DLIBC_NAMESPACE=__llvm_libc_20_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-i5v923ya/include/armv6m-unknown-none-eabi --target=armv6m-none-eabi -mthumb -Wno-atomic-alignment "-Dvfprintf(stream, format, vlist)=vprintf(format, vlist)" "-Dfprintf(stream, format, ...)=printf(format)" "-Dtimeval=struct timeval{int tv_sec; int tv_usec;}" "-Dgettimeofday(tv, tz)" -D_LIBCPP_PRINT=1 -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-i5v923ya/runtimes/runtimes-armv6m-none-eabi-bins=../../../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -Os -DNDEBUG -std=gnu++17 --target=armv6m-none-eabi -DLIBC_QSORT_IMPL=LIBC_QSORT_HEAP_SORT -DLIBC_TYPES_TIME_T_IS_32_BIT -DLIBC_ADD_NULL_CHECKS -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 -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -O3 -DLIBC_COPT_PUBLIC_PACKAGING -MD -MT libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizel.dir/canonicalizel.cpp.obj -MF libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizel.dir/canonicalizel.cpp.obj.d -o libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizel.dir/canonicalizel.cpp.obj -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalizel.cpp
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalizel.cpp:10:
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/BasicOperations.h:14:
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/dyadic_float.h:108:27: error: use of undeclared identifier 'float16'; did you mean 'float'?
108 | using FPBits = FPBits<float16>;
| ^~~~~~~
| float
Step 6 (build) failure: build (failure)
...
[159/1693] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strstr.dir/strstr.cpp.obj
[160/1693] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_trailing_ones_uc.dir/stdc_trailing_ones_uc.cpp.obj
[161/1693] Building CXX object libc/src/stdbit/CMakeFiles/libc.src.stdbit.stdc_trailing_ones_us.dir/stdc_trailing_ones_us.cpp.obj
[162/1693] Building CXX object libc/src/string/CMakeFiles/libc.src.string.strcasestr.dir/strcasestr.cpp.obj
[163/1693] Building CXX object libc/src/fenv/CMakeFiles/libc.src.fenv.fegetexcept.dir/fegetexcept.cpp.obj
[164/1693] Building CXX object libc/src/assert/generic/CMakeFiles/libc.src.assert.generic.__assert_fail.dir/__assert_fail.cpp.obj
[165/1693] Building CXX object libc/src/inttypes/CMakeFiles/libc.src.inttypes.strtoimax.dir/strtoimax.cpp.obj
[166/1693] Building CXX object libc/src/inttypes/CMakeFiles/libc.src.inttypes.strtoumax.dir/strtoumax.cpp.obj
[167/1693] Building CXX object libc/src/__support/StringUtil/CMakeFiles/libc.src.__support.StringUtil.error_to_string.dir/error_to_string.cpp.obj
[168/1693] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.fmul.dir/fmul.cpp.obj
FAILED: libc/src/math/generic/CMakeFiles/libc.src.math.generic.fmul.dir/fmul.cpp.obj
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-i5v923ya/bin/clang++ --target=armv6m-none-eabi -DLIBC_NAMESPACE=__llvm_libc_20_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-i5v923ya/include/armv6m-unknown-none-eabi --target=armv6m-none-eabi -mthumb -Wno-atomic-alignment "-Dvfprintf(stream, format, vlist)=vprintf(format, vlist)" "-Dfprintf(stream, format, ...)=printf(format)" "-Dtimeval=struct timeval{int tv_sec; int tv_usec;}" "-Dgettimeofday(tv, tz)" -D_LIBCPP_PRINT=1 -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-i5v923ya/runtimes/runtimes-armv6m-none-eabi-bins=../../../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -Os -DNDEBUG -std=gnu++17 --target=armv6m-none-eabi -DLIBC_QSORT_IMPL=LIBC_QSORT_HEAP_SORT -DLIBC_TYPES_TIME_T_IS_32_BIT -DLIBC_ADD_NULL_CHECKS -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 -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -O3 -DLIBC_COPT_PUBLIC_PACKAGING -MD -MT libc/src/math/generic/CMakeFiles/libc.src.math.generic.fmul.dir/fmul.cpp.obj -MF libc/src/math/generic/CMakeFiles/libc.src.math.generic.fmul.dir/fmul.cpp.obj.d -o libc/src/math/generic/CMakeFiles/libc.src.math.generic.fmul.dir/fmul.cpp.obj -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/fmul.cpp
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/fmul.cpp:12:
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/generic/mul.h:16:
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/BasicOperations.h:14:
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/dyadic_float.h:108:27: error: use of undeclared identifier 'float16'; did you mean 'float'?
108 | using FPBits = FPBits<float16>;
| ^~~~~~~
| float
1 error generated.
[169/1693] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalize.dir/canonicalize.cpp.obj
FAILED: libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalize.dir/canonicalize.cpp.obj
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-i5v923ya/bin/clang++ --target=armv6m-none-eabi -DLIBC_NAMESPACE=__llvm_libc_20_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-i5v923ya/include/armv6m-unknown-none-eabi --target=armv6m-none-eabi -mthumb -Wno-atomic-alignment "-Dvfprintf(stream, format, vlist)=vprintf(format, vlist)" "-Dfprintf(stream, format, ...)=printf(format)" "-Dtimeval=struct timeval{int tv_sec; int tv_usec;}" "-Dgettimeofday(tv, tz)" -D_LIBCPP_PRINT=1 -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-i5v923ya/runtimes/runtimes-armv6m-none-eabi-bins=../../../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -Os -DNDEBUG -std=gnu++17 --target=armv6m-none-eabi -DLIBC_QSORT_IMPL=LIBC_QSORT_HEAP_SORT -DLIBC_TYPES_TIME_T_IS_32_BIT -DLIBC_ADD_NULL_CHECKS -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 -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -O3 -DLIBC_COPT_PUBLIC_PACKAGING -MD -MT libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalize.dir/canonicalize.cpp.obj -MF libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalize.dir/canonicalize.cpp.obj.d -o libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalize.dir/canonicalize.cpp.obj -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalize.cpp
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalize.cpp:10:
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/BasicOperations.h:14:
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/dyadic_float.h:108:27: error: use of undeclared identifier 'float16'; did you mean 'float'?
108 | using FPBits = FPBits<float16>;
| ^~~~~~~
| float
1 error generated.
[170/1693] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizef.dir/canonicalizef.cpp.obj
FAILED: libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizef.dir/canonicalizef.cpp.obj
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-i5v923ya/bin/clang++ --target=armv6m-none-eabi -DLIBC_NAMESPACE=__llvm_libc_20_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-i5v923ya/include/armv6m-unknown-none-eabi --target=armv6m-none-eabi -mthumb -Wno-atomic-alignment "-Dvfprintf(stream, format, vlist)=vprintf(format, vlist)" "-Dfprintf(stream, format, ...)=printf(format)" "-Dtimeval=struct timeval{int tv_sec; int tv_usec;}" "-Dgettimeofday(tv, tz)" -D_LIBCPP_PRINT=1 -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-i5v923ya/runtimes/runtimes-armv6m-none-eabi-bins=../../../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -Os -DNDEBUG -std=gnu++17 --target=armv6m-none-eabi -DLIBC_QSORT_IMPL=LIBC_QSORT_HEAP_SORT -DLIBC_TYPES_TIME_T_IS_32_BIT -DLIBC_ADD_NULL_CHECKS -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 -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -O3 -DLIBC_COPT_PUBLIC_PACKAGING -MD -MT libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizef.dir/canonicalizef.cpp.obj -MF libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizef.dir/canonicalizef.cpp.obj.d -o libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizef.dir/canonicalizef.cpp.obj -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalizef.cpp
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalizef.cpp:10:
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/BasicOperations.h:14:
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/dyadic_float.h:108:27: error: use of undeclared identifier 'float16'; did you mean 'float'?
108 | using FPBits = FPBits<float16>;
| ^~~~~~~
| float
1 error generated.
[171/1693] Building CXX object libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizel.dir/canonicalizel.cpp.obj
FAILED: libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizel.dir/canonicalizel.cpp.obj
/var/lib/buildbot/fuchsia-x86_64-linux/build/llvm-build-i5v923ya/bin/clang++ --target=armv6m-none-eabi -DLIBC_NAMESPACE=__llvm_libc_20_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-i5v923ya/include/armv6m-unknown-none-eabi --target=armv6m-none-eabi -mthumb -Wno-atomic-alignment "-Dvfprintf(stream, format, vlist)=vprintf(format, vlist)" "-Dfprintf(stream, format, ...)=printf(format)" "-Dtimeval=struct timeval{int tv_sec; int tv_usec;}" "-Dgettimeofday(tv, tz)" -D_LIBCPP_PRINT=1 -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-i5v923ya/runtimes/runtimes-armv6m-none-eabi-bins=../../../../llvm-project -ffile-prefix-map=/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/= -no-canonical-prefixes -Os -DNDEBUG -std=gnu++17 --target=armv6m-none-eabi -DLIBC_QSORT_IMPL=LIBC_QSORT_HEAP_SORT -DLIBC_TYPES_TIME_T_IS_32_BIT -DLIBC_ADD_NULL_CHECKS -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 -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -O3 -DLIBC_COPT_PUBLIC_PACKAGING -MD -MT libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizel.dir/canonicalizel.cpp.obj -MF libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizel.dir/canonicalizel.cpp.obj.d -o libc/src/math/generic/CMakeFiles/libc.src.math.generic.canonicalizel.dir/canonicalizel.cpp.obj -c /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalizel.cpp
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/math/generic/canonicalizel.cpp:10:
In file included from /var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/BasicOperations.h:14:
/var/lib/buildbot/fuchsia-x86_64-linux/llvm-project/libc/src/__support/FPUtil/dyadic_float.h:108:27: error: use of undeclared identifier 'float16'; did you mean 'float'?
108 | using FPBits = FPBits<float16>;
| ^~~~~~~
| float
```
</details>
https://github.com/llvm/llvm-project/pull/105152
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