Date: Tue, 26 Aug 2025 03:40:01 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 289103] The C++ code fails in clang and succeeds in gcc Message-ID: <bug-289103-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=289103 Bug ID: 289103 Summary: The C++ code fails in clang and succeeds in gcc Product: Base System Version: 14.3-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: yuri@freebsd.org Created attachment 263238 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=263238&action=edit testcase.shar The attached testcase fails in clang but succeeds in gcc. They do some manipulations with SIMD vectors. This code is extracted from the port audio/cardinal. It succeeds in 14.2 but fails in 14.3 - likely due to clang update. The error messages: $ ./run.sh In file included from main.cpp:3: In file included from /usr/include/c++/v1/complex:266: In file included from /usr/include/c++/v1/cmath:316: In file included from /usr/include/c++/v1/__math/hypot.h:15: In file included from /usr/include/c++/v1/__math/exponential_functions.h:17: /usr/include/c++/v1/__type_traits/promote.h:32:18: error: static assertion failed due to requirement 'is_arithmetic<rack::simd::Vector<float, 4>>::value' 32 | static_assert((is_arithmetic<_Args>::value && ...)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/v1/complex:1110:47: note: in instantiation of template class 'std::__promote<rack::simd::Vector<float, 4>, float>' requested here 1110 | inline _LIBCPP_HIDE_FROM_ABI complex<typename __promote<_Tp, _Up>::type> pow(const complex<_Tp>& __x, const _Up& __y) { | ^ main.cpp:182:43: note: while substituting deduced template arguments into function template 'pow' [with _Tp = rack::simd::float_4, _Up = float, $2 = (no value)] 182 | rack::simd::float_4 globalSends = rack::simd::pow<rack::simd::float_4>(globalSends, globalAuxSendScalingExponent); | ^ main.cpp:182:80: warning: variable 'globalSends' is uninitialized when used within its own initialization [-Wuninitialized] 182 | rack::simd::float_4 globalSends = rack::simd::pow<rack::simd::float_4>(globalSends, globalAuxSendScalingExponent); | ~~~~~~~~~~~ ^~~~~~~~~~~ 1 warning and 1 error generated. [yuri@yv /usr/ports/audio/cardinal/testcase]$ -- You are receiving this mail because: You are the assignee for the bug.home | help
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