diff options
Diffstat (limited to 'test/Sema/128bitint.c')
| -rw-r--r-- | test/Sema/128bitint.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/Sema/128bitint.c b/test/Sema/128bitint.c index ddad83554753..600c25a630c2 100644 --- a/test/Sema/128bitint.c +++ b/test/Sema/128bitint.c @@ -18,3 +18,22 @@ long long Signed64 = 123456789012345678901234567890i128; // expected-warning {{i unsigned long long UnsignedTooBig = 123456789012345678901234567890; // expected-warning {{integer constant is too large for its type}} __uint128_t Unsigned128 = 123456789012345678901234567890Ui128; unsigned long long Unsigned64 = 123456789012345678901234567890Ui128; // expected-warning {{implicit conversion from 'unsigned __int128' to 'unsigned long long' changes value from 123456789012345678901234567890 to 14083847773837265618}} + +// Ensure we don't crash when user passes 128-bit values to type safety +// attributes. +void pointer_with_type_tag_arg_num_1(void *buf, int datatype) + __attribute__(( pointer_with_type_tag(mpi,0x10000000000000001i128,1) )); // expected-error {{attribute parameter 2 is out of bounds}} + +void pointer_with_type_tag_arg_num_2(void *buf, int datatype) + __attribute__(( pointer_with_type_tag(mpi,1,0x10000000000000001i128) )); // expected-error {{attribute parameter 3 is out of bounds}} + +void MPI_Send(void *buf, int datatype) __attribute__(( pointer_with_type_tag(mpi,1,2) )); + +static const __uint128_t mpi_int_wrong __attribute__(( type_tag_for_datatype(mpi,int) )) = 0x10000000000000001i128; // expected-error {{'type_tag_for_datatype' attribute requires the initializer to be an integer constant expression that can be represented by a 64 bit integer}} +static const int mpi_int __attribute__(( type_tag_for_datatype(mpi,int) )) = 10; + +void test(int *buf) +{ + MPI_Send(buf, 0x10000000000000001i128); // expected-warning {{implicit conversion from '__int128' to 'int' changes value}} +} + |