https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114750
Bug ID: 114750
Summary: converting load/store of simd fails compilation on ARM
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: mkretz at gcc dot gnu.org
Target Milestone: ---
https://compiler-explorer.com/z/jh5YeqzEe
Testcase:
#include <experimental/simd>
namespace stdx = std::experimental;
void f(long double* ptr, double* dptr, float* fptr)
{
stdx::simd<int> x;
//stdx::fixed_size_simd<int, 3> x;
x.copy_from(ptr, stdx::element_aligned);
x.copy_to(dptr, stdx::element_aligned);
x.copy_from(dptr, stdx::element_aligned);
x.copy_to(fptr, stdx::element_aligned);
x.copy_from(fptr, stdx::element_aligned);
x.copy_to(ptr, stdx::element_aligned);
}
This fails when using 'std::experimental::parallelism_v2::__intrinsic_type<long
double, 16, void>' in the load and store implementations. The same failure can
occur for '__intrinsic_type<double, 16, void>' and '__intrinsic_type<float, 16,
void>'.
A condition, checking whether the type is actually vectorizable for the target
is missing.
