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: [email protected]
Reporter: [email protected]
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, $2 = (no
value)]
182 | rack::simd::float_4 globalSends =
rack::simd::pow<rack::simd::float_4>(globalSends,
globalAuxSendScalingExponent);
| ^
main.cpp:182:80: warning: variable 'globalSends' is uninitialized when used
within its own initialization [-Wuninitialized]
182 | rack::simd::float_4 globalSends =
rack::simd::pow<rack::simd::float_4>(globalSends,
globalAuxSendScalingExponent);
| ~~~~~~~~~~~
^~~~~~~~~~~
1 warning and 1 error generated.
[yuri@yv /usr/ports/audio/cardinal/testcase]$
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