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Message
Detailed Help
Suggestions to Fix
DPCT1123
DPCT1124
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DPCT1122
Message
‘<original type>’ is migrated to ‘<migrated type>’ in the template declaration; it may cause template function or class redefinition; please adjust the code.
Detailed Help
SYCL* vector types like sycl::long4 are defined by ‘using <type><elems> = vec<<storage-type>, <elems>>’ in SYCL2020 Vector types section 4.12.2, but sycl::longlong4 is not defined. In the migration, both ‘long4’ and ‘longlong4’ are migrated to sycl::long4, this may cause template function or class redefinition.
Suggestions to Fix
For example, this original CUDA* code:
template <typename T> struct C { T a; };
template <> struct C<longlong4> { longlong4 a; };
template <> struct C<long4> { long4 a; };results in the following migrated SYCL code:
template <typename T> struct C { T a; };
/*
DPCT1122:0: 'longlong4' is migrated to 'sycl::long4' in the template
declaration; it may cause template function or class redefinition; please adjust
the code.
*/
template <> struct C<sycl::long4> { sycl::long4 a; };
template <> struct C<sycl::long4> { sycl::long4 a; };which needs to be rewritten to:
template <typename T> struct C { T a; };
template <> struct C<sycl::long4> { sycl::long4 a; };