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Diffstat (limited to 'clang/test/SemaCXX/vector-casts.cpp')
| -rw-r--r-- | clang/test/SemaCXX/vector-casts.cpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/vector-casts.cpp b/clang/test/SemaCXX/vector-casts.cpp new file mode 100644 index 0000000..681a07e --- /dev/null +++ b/clang/test/SemaCXX/vector-casts.cpp @@ -0,0 +1,40 @@ +// RUN: %clang_cc1 -fsyntax-only -verify %s +typedef int __v2si __attribute__((__vector_size__(8))); +typedef short __v4hi __attribute__((__vector_size__(8))); +typedef short __v8hi __attribute__((__vector_size__(16))); + +struct S { }; // expected-note 2 {{candidate constructor}} + +void f() { + __v2si v2si; + __v4hi v4hi; + __v8hi v8hi; + unsigned long long ll; + unsigned char c; + S s; + + (void)reinterpret_cast<__v2si>(v4hi); + (void)(__v2si)v4hi; + (void)reinterpret_cast<__v4hi>(v2si); + (void)(__v4hi)v2si; + (void)reinterpret_cast<unsigned long long>(v2si); + (void)(unsigned long long)v2si; + (void)reinterpret_cast<__v2si>(ll); + (void)(__v2si)(ll); + + (void)reinterpret_cast<S>(v2si); // expected-error {{reinterpret_cast from '__v2si' to 'S' is not allowed}} + (void)(S)v2si; // expected-error {{no matching conversion for C-style cast from '__v2si' to 'S'}} + (void)reinterpret_cast<__v2si>(s); // expected-error {{reinterpret_cast from 'S' to '__v2si' is not allowed}} + (void)(__v2si)s; // expected-error {{cannot convert 'S' to '__v2si' without a conversion operator}} + + (void)reinterpret_cast<unsigned char>(v2si); // expected-error {{reinterpret_cast from vector '__v2si' to scalar 'unsigned char' of different size}} + (void)(unsigned char)v2si; // expected-error {{C-style cast from vector '__v2si' to scalar 'unsigned char' of different size}} + (void)reinterpret_cast<__v2si>(c); // expected-error {{reinterpret_cast from scalar 'unsigned char' to vector '__v2si' of different size}} + + (void)reinterpret_cast<__v8hi>(v4hi); // expected-error {{reinterpret_cast from vector '__v4hi' to vector '__v8hi' of different size}} + (void)(__v8hi)v4hi; // expected-error {{C-style cast from vector '__v4hi' to vector '__v8hi' of different size}} + (void)reinterpret_cast<__v4hi>(v8hi); // expected-error {{reinterpret_cast from vector '__v8hi' to vector '__v4hi' of different size}} + (void)(__v4hi)v8hi; // expected-error {{C-style cast from vector '__v8hi' to vector '__v4hi' of different size}} +} + + |