[libc-commits] [libc] [llvm] [libc][math] Refactor bf16mul family to header-only (PR #182018)
via libc-commits
libc-commits at lists.llvm.org
Wed Feb 18 05:16:56 PST 2026
github-actions[bot] wrote:
<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results
The build failed before running any tests. Click on a failure below to see the details.
<details>
<summary>libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__build__.dir/shared_math_test.cpp.o</summary>
```
FAILED: libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__build__.dir/shared_math_test.cpp.o
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/./bin/clang++ --target=x86_64-unknown-linux-gnu -DLIBC_NAMESPACE=__llvm_libc_23_0_0_git -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libc -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc -isystem /home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -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 -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=gnu++17 -UNDEBUG -mavx2 -mfma -msse4.2 -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_COPT_STRING_LENGTH_IMPL=clang_vector -DLIBC_COPT_FIND_FIRST_CHARACTER_IMPL=word -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -DLIBC_CONF_WCTYPE_MODE=LIBC_WCTYPE_MODE_ASCII -DLIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT=100 -fpie -ffixed-point -Wall -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -MD -MT libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__build__.dir/shared_math_test.cpp.o -MF libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__build__.dir/shared_math_test.cpp.o.d -o libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__build__.dir/shared_math_test.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp:10:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:23:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/ErrnoCheckingTest.h:15:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/Test.h:37:
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:204:36: error: no viable conversion from '__llvm_libc_23_0_0_git::fputil::BFloat16' to 'long double'
204 | return testMatch(Matcher.match(Value), Matcher, ValueStr, MatcherStr, Loc);
| ^~~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp:200:3: note: in instantiation of function template specialization '__llvm_libc_23_0_0_git::testing::Test::matchAndExplain<__llvm_libc_23_0_0_git::testing::FPMatcher<long double, __llvm_libc_23_0_0_git::testing::TestCond::EQ>, __llvm_libc_23_0_0_git::fputil::BFloat16>' requested here
200 | EXPECT_FP_EQ(0x0p+0L, LIBC_NAMESPACE::shared::bf16mul(0.0L, 0.0L));
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:272:3: note: expanded from macro 'EXPECT_FP_EQ'
272 | EXPECT_THAT(actual, LIBC_NAMESPACE::testing::getMatcher< \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:514:3: note: expanded from macro 'EXPECT_THAT'
514 | LIBC_TEST_MATCH_(MATCHER, MATCH, #MATCHER, #MATCH, )
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:509:26: note: expanded from macro 'LIBC_TEST_MATCH_'
509 | LIBC_TEST_SCAFFOLDING_(matchAndExplain(MATCHER, MATCH, MATCHER_STR, \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:428:7: note: expanded from macro 'LIBC_TEST_SCAFFOLDING_'
428 | if (TEST) \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/FPUtil/bfloat16.h:61:25: note: candidate template ignored: could not match 'float' against 'long double'
61 | LIBC_INLINE constexpr operator float() const {
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/FPUtil/bfloat16.h:67:34: note: explicit conversion function is not a candidate
67 | LIBC_INLINE constexpr explicit operator T() const {
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:47:16: note: passing argument to parameter 'actualValue' here
47 | bool match(T actualValue) {
| ^
1 error generated.
```
</details>
<details>
<summary>libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_FMA_OPT.__build__.dir/shared_math_test.cpp.o</summary>
```
FAILED: libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_FMA_OPT.__build__.dir/shared_math_test.cpp.o
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/./bin/clang++ --target=x86_64-unknown-linux-gnu -DLIBC_NAMESPACE=__llvm_libc_23_0_0_git -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libc -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc -isystem /home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -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 -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=gnu++17 -UNDEBUG -msse4.2 -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_COPT_STRING_LENGTH_IMPL=clang_vector -DLIBC_COPT_FIND_FIRST_CHARACTER_IMPL=word -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -DLIBC_CONF_WCTYPE_MODE=LIBC_WCTYPE_MODE_ASCII -DLIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT=100 -fpie -ffixed-point -Wall -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -MD -MT libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_FMA_OPT.__build__.dir/shared_math_test.cpp.o -MF libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_FMA_OPT.__build__.dir/shared_math_test.cpp.o.d -o libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_FMA_OPT.__build__.dir/shared_math_test.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp:10:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:23:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/ErrnoCheckingTest.h:15:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/Test.h:37:
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:204:36: error: no viable conversion from '__llvm_libc_23_0_0_git::fputil::BFloat16' to 'long double'
204 | return testMatch(Matcher.match(Value), Matcher, ValueStr, MatcherStr, Loc);
| ^~~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp:200:3: note: in instantiation of function template specialization '__llvm_libc_23_0_0_git::testing::Test::matchAndExplain<__llvm_libc_23_0_0_git::testing::FPMatcher<long double, __llvm_libc_23_0_0_git::testing::TestCond::EQ>, __llvm_libc_23_0_0_git::fputil::BFloat16>' requested here
200 | EXPECT_FP_EQ(0x0p+0L, LIBC_NAMESPACE::shared::bf16mul(0.0L, 0.0L));
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:272:3: note: expanded from macro 'EXPECT_FP_EQ'
272 | EXPECT_THAT(actual, LIBC_NAMESPACE::testing::getMatcher< \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:514:3: note: expanded from macro 'EXPECT_THAT'
514 | LIBC_TEST_MATCH_(MATCHER, MATCH, #MATCHER, #MATCH, )
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:509:26: note: expanded from macro 'LIBC_TEST_MATCH_'
509 | LIBC_TEST_SCAFFOLDING_(matchAndExplain(MATCHER, MATCH, MATCHER_STR, \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:428:7: note: expanded from macro 'LIBC_TEST_SCAFFOLDING_'
428 | if (TEST) \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/FPUtil/bfloat16.h:61:25: note: candidate template ignored: could not match 'float' against 'long double'
61 | LIBC_INLINE constexpr operator float() const {
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/FPUtil/bfloat16.h:67:34: note: explicit conversion function is not a candidate
67 | LIBC_INLINE constexpr explicit operator T() const {
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:47:16: note: passing argument to parameter 'actualValue' here
47 | bool match(T actualValue) {
| ^
1 error generated.
```
</details>
<details>
<summary>libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_ROUND_OPT.__build__.dir/shared_math_test.cpp.o</summary>
```
FAILED: libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_ROUND_OPT.__build__.dir/shared_math_test.cpp.o
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/./bin/clang++ --target=x86_64-unknown-linux-gnu -DLIBC_NAMESPACE=__llvm_libc_23_0_0_git -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libc -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc -isystem /home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -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 -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=gnu++17 -UNDEBUG -mavx2 -mfma -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_COPT_STRING_LENGTH_IMPL=clang_vector -DLIBC_COPT_FIND_FIRST_CHARACTER_IMPL=word -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -DLIBC_CONF_WCTYPE_MODE=LIBC_WCTYPE_MODE_ASCII -DLIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT=100 -fpie -ffixed-point -Wall -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -MD -MT libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_ROUND_OPT.__build__.dir/shared_math_test.cpp.o -MF libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_ROUND_OPT.__build__.dir/shared_math_test.cpp.o.d -o libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_ROUND_OPT.__build__.dir/shared_math_test.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp:10:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:23:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/ErrnoCheckingTest.h:15:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/Test.h:37:
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:204:36: error: no viable conversion from '__llvm_libc_23_0_0_git::fputil::BFloat16' to 'long double'
204 | return testMatch(Matcher.match(Value), Matcher, ValueStr, MatcherStr, Loc);
| ^~~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp:200:3: note: in instantiation of function template specialization '__llvm_libc_23_0_0_git::testing::Test::matchAndExplain<__llvm_libc_23_0_0_git::testing::FPMatcher<long double, __llvm_libc_23_0_0_git::testing::TestCond::EQ>, __llvm_libc_23_0_0_git::fputil::BFloat16>' requested here
200 | EXPECT_FP_EQ(0x0p+0L, LIBC_NAMESPACE::shared::bf16mul(0.0L, 0.0L));
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:272:3: note: expanded from macro 'EXPECT_FP_EQ'
272 | EXPECT_THAT(actual, LIBC_NAMESPACE::testing::getMatcher< \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:514:3: note: expanded from macro 'EXPECT_THAT'
514 | LIBC_TEST_MATCH_(MATCHER, MATCH, #MATCHER, #MATCH, )
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:509:26: note: expanded from macro 'LIBC_TEST_MATCH_'
509 | LIBC_TEST_SCAFFOLDING_(matchAndExplain(MATCHER, MATCH, MATCHER_STR, \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:428:7: note: expanded from macro 'LIBC_TEST_SCAFFOLDING_'
428 | if (TEST) \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/FPUtil/bfloat16.h:61:25: note: candidate template ignored: could not match 'float' against 'long double'
61 | LIBC_INLINE constexpr operator float() const {
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/FPUtil/bfloat16.h:67:34: note: explicit conversion function is not a candidate
67 | LIBC_INLINE constexpr explicit operator T() const {
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:47:16: note: passing argument to parameter 'actualValue' here
47 | bool match(T actualValue) {
| ^
1 error generated.
```
</details>
<details>
<summary>libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_FMA_OPT.__NO_ROUND_OPT.__build__.dir/shared_math_test.cpp.o</summary>
```
FAILED: libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_FMA_OPT.__NO_ROUND_OPT.__build__.dir/shared_math_test.cpp.o
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/./bin/clang++ --target=x86_64-unknown-linux-gnu -DLIBC_NAMESPACE=__llvm_libc_23_0_0_git -I/home/gha/actions-runner/_work/llvm-project/llvm-project/libc -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc -isystem /home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -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 -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=gnu++17 -UNDEBUG -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_COPT_STRING_LENGTH_IMPL=clang_vector -DLIBC_COPT_FIND_FIRST_CHARACTER_IMPL=word -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -DLIBC_CONF_WCTYPE_MODE=LIBC_WCTYPE_MODE_ASCII -DLIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT=100 -fpie -ffixed-point -Wall -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -MD -MT libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_FMA_OPT.__NO_ROUND_OPT.__build__.dir/shared_math_test.cpp.o -MF libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_FMA_OPT.__NO_ROUND_OPT.__build__.dir/shared_math_test.cpp.o.d -o libc/test/shared/CMakeFiles/libc.test.shared.shared_math_test.__unit__.__NO_FMA_OPT.__NO_ROUND_OPT.__build__.dir/shared_math_test.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp:10:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:23:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/ErrnoCheckingTest.h:15:
In file included from /home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/Test.h:37:
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:204:36: error: no viable conversion from '__llvm_libc_23_0_0_git::fputil::BFloat16' to 'long double'
204 | return testMatch(Matcher.match(Value), Matcher, ValueStr, MatcherStr, Loc);
| ^~~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/shared/shared_math_test.cpp:200:3: note: in instantiation of function template specialization '__llvm_libc_23_0_0_git::testing::Test::matchAndExplain<__llvm_libc_23_0_0_git::testing::FPMatcher<long double, __llvm_libc_23_0_0_git::testing::TestCond::EQ>, __llvm_libc_23_0_0_git::fputil::BFloat16>' requested here
200 | EXPECT_FP_EQ(0x0p+0L, LIBC_NAMESPACE::shared::bf16mul(0.0L, 0.0L));
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:272:3: note: expanded from macro 'EXPECT_FP_EQ'
272 | EXPECT_THAT(actual, LIBC_NAMESPACE::testing::getMatcher< \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:514:3: note: expanded from macro 'EXPECT_THAT'
514 | LIBC_TEST_MATCH_(MATCHER, MATCH, #MATCHER, #MATCH, )
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:509:26: note: expanded from macro 'LIBC_TEST_MATCH_'
509 | LIBC_TEST_SCAFFOLDING_(matchAndExplain(MATCHER, MATCH, MATCHER_STR, \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/LibcTest.h:428:7: note: expanded from macro 'LIBC_TEST_SCAFFOLDING_'
428 | if (TEST) \
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/FPUtil/bfloat16.h:61:25: note: candidate template ignored: could not match 'float' against 'long double'
61 | LIBC_INLINE constexpr operator float() const {
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/src/__support/FPUtil/bfloat16.h:67:34: note: explicit conversion function is not a candidate
67 | LIBC_INLINE constexpr explicit operator T() const {
| ^
/home/gha/actions-runner/_work/llvm-project/llvm-project/libc/test/UnitTest/FPMatcher.h:47:16: note: passing argument to parameter 'actualValue' here
47 | bool match(T actualValue) {
| ^
1 error generated.
```
</details>
If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.
https://github.com/llvm/llvm-project/pull/182018
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