Clang 18+ /fp:fast emits -Wnan-infinity-disabled in VSO_0000000_vector_algorithms_floats #4931
Description
All 8 clang-cl /fp:fast configs have the same issue. For example:
Error log for clang-cl /fp:fast /MT without /D_USE_STD_VECTOR_ALGORITHMS=0
FAIL: std :: tests/VSO_0000000_vector_algorithms_floats:16 (6 of 24)
******************** TEST 'std :: tests/VSO_0000000_vector_algorithms_floats:16' FAILED ********************
Build setup steps:
Build steps:
Build step failed unexpectedly.
Command: "c:\Program Files\LLVM19\bin\clang-cl.EXE" "C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp" "-IC:\STL\out\x64\out\inc" "-IC:\STL\llvm-project\libcxx\test\support" "-IC:\STL\tests\std\include" "/nologo" "/Od" "/W4" "/w14061" "/w14242" "/w14265" "/w14582" "/w14583" "/w14587" "/w14588" "/w14749" "/w14841" "/w14842" "/w15038" "/w15214" "/w15215" "/w15216" "/w15217" "/w15262" "/sdl" "/WX" "/D_ENABLE_STL_INTERNAL_CHECK" "/bigobj" "/FIforce_include.hpp" "/w14365" "/w14668" "/w15267" "/D_ENFORCE_FACET_SPECIALIZATIONS=1" "/D_STL_CALL_ABORT_INSTEAD_OF_INVALID_PARAMETER" "-fno-ms-compatibility" "-fno-delayed-template-parsing" "-Wno-unqualified-std-cast-call" "/EHsc" "/MT" "/std:c++20" "/permissive-" "/w14640" "/Zc:threadSafeInit-" "--start-no-unused-arguments" "/fp:fast" "-m64" "-FeC:\STL\out\x64\tests\std\tests\VSO_0000000_vector_algorithms_floats\Output\16\VSO_0000000_vector_algorithms_floats.exe" "-link" "-LIBPATH:C:\STL\out\x64\out\lib\amd64" "-LIBPATH:C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.42.34226\lib\x64" "/MANIFEST:EMBED"
Exit Code: 1 (0x1)
Standard Error:
--
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:5:
C:\STL\out\x64\out\inc\limits(883,16): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
883 | return __builtin_nanf("0");
| ^~~~~~~~~~~~~~~~~~~
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(671,1): error: use of infinity is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
671 | _CLANG_BUILTIN1(isfinite)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(662,5): note: expanded from macro '_CLANG_BUILTIN1'
662 | _CLANG_BUILTIN1_ARG(NAME, float) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(605,16): note: expanded from macro '_CLANG_BUILTIN1_ARG'
605 | return __builtin_##NAME(_Xx); \
| ^~~~~~~~~~~~~~~~~~~~~
(196,1): note: expanded from here
196 | __builtin_isfinite
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(671,1): error: use of infinity is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
671 | _CLANG_BUILTIN1(isfinite)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(663,5): note: expanded from macro '_CLANG_BUILTIN1'
663 | _CLANG_BUILTIN1_ARG(NAME, double) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(605,16): note: expanded from macro '_CLANG_BUILTIN1_ARG'
605 | return __builtin_##NAME(_Xx); \
| ^~~~~~~~~~~~~~~~~~~~~
(199,1): note: expanded from here
199 | __builtin_isfinite
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(671,1): error: use of infinity is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
671 | _CLANG_BUILTIN1(isfinite)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(664,5): note: expanded from macro '_CLANG_BUILTIN1'
664 | _CLANG_BUILTIN1_ARG(NAME, long double)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(605,16): note: expanded from macro '_CLANG_BUILTIN1_ARG'
605 | return __builtin_##NAME(_Xx); \
| ^~~~~~~~~~~~~~~~~~~~~
(202,1): note: expanded from here
202 | __builtin_isfinite
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(672,1): error: use of infinity is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
672 | _CLANG_BUILTIN1(isinf)
| ^~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(662,5): note: expanded from macro '_CLANG_BUILTIN1'
662 | _CLANG_BUILTIN1_ARG(NAME, float) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(605,16): note: expanded from macro '_CLANG_BUILTIN1_ARG'
605 | return __builtin_##NAME(_Xx); \
| ^~~~~~~~~~~~~~~~~~~~~
(205,1): note: expanded from here
205 | __builtin_isinf
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(672,1): error: use of infinity is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
672 | _CLANG_BUILTIN1(isinf)
| ^~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(663,5): note: expanded from macro '_CLANG_BUILTIN1'
663 | _CLANG_BUILTIN1_ARG(NAME, double) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(605,16): note: expanded from macro '_CLANG_BUILTIN1_ARG'
605 | return __builtin_##NAME(_Xx); \
| ^~~~~~~~~~~~~~~~~~~~~
(208,1): note: expanded from here
208 | __builtin_isinf
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(672,1): error: use of infinity is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
672 | _CLANG_BUILTIN1(isinf)
| ^~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(664,5): note: expanded from macro '_CLANG_BUILTIN1'
664 | _CLANG_BUILTIN1_ARG(NAME, long double)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(605,16): note: expanded from macro '_CLANG_BUILTIN1_ARG'
605 | return __builtin_##NAME(_Xx); \
| ^~~~~~~~~~~~~~~~~~~~~
(211,1): note: expanded from here
211 | __builtin_isinf
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(673,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
673 | _CLANG_BUILTIN1(isnan)
| ^~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(662,5): note: expanded from macro '_CLANG_BUILTIN1'
662 | _CLANG_BUILTIN1_ARG(NAME, float) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(605,16): note: expanded from macro '_CLANG_BUILTIN1_ARG'
605 | return __builtin_##NAME(_Xx); \
| ^~~~~~~~~~~~~~~~~~~~~
(214,1): note: expanded from here
214 | __builtin_isnan
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(673,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
673 | _CLANG_BUILTIN1(isnan)
| ^~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(663,5): note: expanded from macro '_CLANG_BUILTIN1'
663 | _CLANG_BUILTIN1_ARG(NAME, double) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(605,16): note: expanded from macro '_CLANG_BUILTIN1_ARG'
605 | return __builtin_##NAME(_Xx); \
| ^~~~~~~~~~~~~~~~~~~~~
(217,1): note: expanded from here
217 | __builtin_isnan
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(673,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
673 | _CLANG_BUILTIN1(isnan)
| ^~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(664,5): note: expanded from macro '_CLANG_BUILTIN1'
664 | _CLANG_BUILTIN1_ARG(NAME, long double)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(605,16): note: expanded from macro '_CLANG_BUILTIN1_ARG'
605 | return __builtin_##NAME(_Xx); \
| ^~~~~~~~~~~~~~~~~~~~~
(220,1): note: expanded from here
220 | __builtin_isnan
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(681,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
681 | _CLANG_BUILTIN2(isunordered)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(667,5): note: expanded from macro '_CLANG_BUILTIN2'
667 | _CLANG_BUILTIN2_ARG(NAME, float) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(611,16): note: expanded from macro '_CLANG_BUILTIN2_ARG'
611 | return __builtin_##NAME(_Xx, _Yx); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
(293,1): note: expanded from here
293 | __builtin_isunordered
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(681,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
681 | _CLANG_BUILTIN2(isunordered)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(668,5): note: expanded from macro '_CLANG_BUILTIN2'
668 | _CLANG_BUILTIN2_ARG(NAME, double) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(611,16): note: expanded from macro '_CLANG_BUILTIN2_ARG'
611 | return __builtin_##NAME(_Xx, _Yx); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
(297,1): note: expanded from here
297 | __builtin_isunordered
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(681,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
681 | _CLANG_BUILTIN2(isunordered)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(669,5): note: expanded from macro '_CLANG_BUILTIN2'
669 | _CLANG_BUILTIN2_ARG(NAME, long double)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(611,16): note: expanded from macro '_CLANG_BUILTIN2_ARG'
611 | return __builtin_##NAME(_Xx, _Yx); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
(301,1): note: expanded from here
301 | __builtin_isunordered
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(688,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
688 | _CLANG_BUILTIN2_TEMPLATED(isunordered)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(641,5): note: expanded from macro '_CLANG_BUILTIN2_TEMPLATED'
641 | _CLANG_BUILTIN2_ARG_TEMPLATED(NAME, float) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(617,16): note: expanded from macro '_CLANG_BUILTIN2_ARG_TEMPLATED'
617 | return __builtin_##NAME(static_cast(_Xx), static_cast(_Yx)); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(81,1): note: expanded from here
81 | __builtin_isunordered
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(688,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
688 | _CLANG_BUILTIN2_TEMPLATED(isunordered)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(642,5): note: expanded from macro '_CLANG_BUILTIN2_TEMPLATED'
642 | _CLANG_BUILTIN2_ARG_TEMPLATED(NAME, double) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(617,16): note: expanded from macro '_CLANG_BUILTIN2_ARG_TEMPLATED'
617 | return __builtin_##NAME(static_cast(_Xx), static_cast(_Yx)); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(85,1): note: expanded from here
85 | __builtin_isunordered
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(688,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
688 | _CLANG_BUILTIN2_TEMPLATED(isunordered)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(643,5): note: expanded from macro '_CLANG_BUILTIN2_TEMPLATED'
643 | _CLANG_BUILTIN2_ARG_TEMPLATED(NAME, long double) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(617,16): note: expanded from macro '_CLANG_BUILTIN2_ARG_TEMPLATED'
617 | return __builtin_##NAME(static_cast(_Xx), static_cast(_Yx)); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(89,1): note: expanded from here
89 | __builtin_isunordered
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(688,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
688 | _CLANG_BUILTIN2_TEMPLATED(isunordered)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(644,5): note: expanded from macro '_CLANG_BUILTIN2_TEMPLATED'
644 | _CLANG_BUILTIN2_ARG_TEMPLATED(NAME, signed char) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(617,16): note: expanded from macro '_CLANG_BUILTIN2_ARG_TEMPLATED'
617 | return __builtin_##NAME(static_cast(_Xx), static_cast(_Yx)); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(93,1): note: expanded from here
93 | __builtin_isunordered
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(688,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
688 | _CLANG_BUILTIN2_TEMPLATED(isunordered)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(645,5): note: expanded from macro '_CLANG_BUILTIN2_TEMPLATED'
645 | _CLANG_BUILTIN2_ARG_TEMPLATED(NAME, short) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(617,16): note: expanded from macro '_CLANG_BUILTIN2_ARG_TEMPLATED'
617 | return __builtin_##NAME(static_cast(_Xx), static_cast(_Yx)); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(97,1): note: expanded from here
97 | __builtin_isunordered
| ^
In file included from C:\STL\tests\std\tests\VSO_0000000_vector_algorithms_floats\test.cpp:6:
In file included from C:\STL\out\x64\out\inc\random:13:
C:\STL\out\x64\out\inc\cmath(688,1): error: use of NaN is undefined behavior due to the currently enabled floating-point options [-Werror,-Wnan-infinity-disabled]
688 | _CLANG_BUILTIN2_TEMPLATED(isunordered)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(646,5): note: expanded from macro '_CLANG_BUILTIN2_TEMPLATED'
646 | _CLANG_BUILTIN2_ARG_TEMPLATED(NAME, int) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\STL\out\x64\out\inc\cmath(617,16): note: expanded from macro '_CLANG_BUILTIN2_ARG_TEMPLATED'
617 | return __builtin_##NAME(static_cast(_Xx), static_cast(_Yx)); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(101,1): note: expanded from here
101 | __builtin_isunordered
| ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
--
#4932 will silence these warnings for the time being.