1// RUN: %clang_cc1 -std=c99 -DOPEN_MPI -fsyntax-only -verify %s 2// RUN: %clang_cc1 -std=c99 -DMPICH -fsyntax-only -verify %s 3// RUN: %clang_cc1 -x c++ -std=c++98 -DOPEN_MPI -fsyntax-only -verify %s 4// RUN: %clang_cc1 -x c++ -std=c++98 -DMPICH -fsyntax-only -verify %s 5// 6// RUN: %clang_cc1 -std=c99 -DOPEN_MPI -fno-signed-char -fsyntax-only -verify %s 7// RUN: %clang_cc1 -std=c99 -DMPICH -fno-signed-char -fsyntax-only -verify %s 8 9//===--- limits.h mock ----------------------------------------------------===// 10 11#ifdef __CHAR_UNSIGNED__ 12#define CHAR_MIN 0 13#define CHAR_MAX (__SCHAR_MAX__*2 +1) 14#else 15#define CHAR_MIN (-__SCHAR_MAX__-1) 16#define CHAR_MAX __SCHAR_MAX__ 17#endif 18 19//===--- mpi.h mock -------------------------------------------------------===// 20 21#define NULL ((void *)0) 22 23#ifdef OPEN_MPI 24typedef struct ompi_datatype_t *MPI_Datatype; 25#endif 26 27#ifdef MPICH 28typedef int MPI_Datatype; 29#endif 30 31int MPI_Send(void *buf, int count, MPI_Datatype datatype) 32 __attribute__(( pointer_with_type_tag(mpi,1,3) )); 33 34int MPI_Gather(void *sendbuf, int sendcount, MPI_Datatype sendtype, 35 void *recvbuf, int recvcount, MPI_Datatype recvtype) 36 __attribute__(( pointer_with_type_tag(mpi,1,3), pointer_with_type_tag(mpi,4,6) )); 37 38#ifdef OPEN_MPI 39// OpenMPI and LAM/MPI-style datatype definitions 40 41#define OMPI_PREDEFINED_GLOBAL(type, global) ((type) &(global)) 42 43#define MPI_DATATYPE_NULL OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_datatype_null) 44#define MPI_FLOAT OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_float) 45#define MPI_INT OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_int) 46#define MPI_LONG OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_long) 47#define MPI_LONG_LONG_INT OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_long_long_int) 48#define MPI_CHAR OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_char) 49 50#define MPI_FLOAT_INT OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_float_int) 51#define MPI_2INT OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_mpi_2int) 52 53#define MPI_IN_PLACE ((void *) 1) 54 55extern struct ompi_predefined_datatype_t ompi_mpi_datatype_null __attribute__(( type_tag_for_datatype(mpi,void,must_be_null) )); 56extern struct ompi_predefined_datatype_t ompi_mpi_float __attribute__(( type_tag_for_datatype(mpi,float) )); 57extern struct ompi_predefined_datatype_t ompi_mpi_int __attribute__(( type_tag_for_datatype(mpi,int) )); 58extern struct ompi_predefined_datatype_t ompi_mpi_long __attribute__(( type_tag_for_datatype(mpi,long) )); 59extern struct ompi_predefined_datatype_t ompi_mpi_long_long_int __attribute__(( type_tag_for_datatype(mpi,long long int) )); 60extern struct ompi_predefined_datatype_t ompi_mpi_char __attribute__(( type_tag_for_datatype(mpi,char) )); 61 62struct ompi_struct_mpi_float_int {float f; int i;}; 63extern struct ompi_predefined_datatype_t ompi_mpi_float_int __attribute__(( type_tag_for_datatype(mpi, struct ompi_struct_mpi_float_int, layout_compatible) )); 64 65struct ompi_struct_mpi_2int {int i1; int i2;}; 66extern struct ompi_predefined_datatype_t ompi_mpi_2int __attribute__(( type_tag_for_datatype(mpi, struct ompi_struct_mpi_2int, layout_compatible) )); 67#endif 68 69#ifdef MPICH 70// MPICH2 and MVAPICH2-style datatype definitions 71 72#define MPI_COMM_WORLD ((MPI_Comm) 0x44000000) 73 74#define MPI_DATATYPE_NULL ((MPI_Datatype) 0xa0000000) 75#define MPI_FLOAT ((MPI_Datatype) 0xa0000001) 76#define MPI_INT ((MPI_Datatype) 0xa0000002) 77#define MPI_LONG ((MPI_Datatype) 0xa0000003) 78#define MPI_LONG_LONG_INT ((MPI_Datatype) 0xa0000004) 79#define MPI_CHAR ((MPI_Datatype) 0xa0000005) 80 81#define MPI_FLOAT_INT ((MPI_Datatype) 0xa0000006) 82#define MPI_2INT ((MPI_Datatype) 0xa0000007) 83 84#define MPI_IN_PLACE (void *) -1 85 86static const MPI_Datatype mpich_mpi_datatype_null __attribute__(( type_tag_for_datatype(mpi,void,must_be_null) )) = 0xa0000000; 87static const MPI_Datatype mpich_mpi_float __attribute__(( type_tag_for_datatype(mpi,float) )) = 0xa0000001; 88static const MPI_Datatype mpich_mpi_int __attribute__(( type_tag_for_datatype(mpi,int) )) = 0xa0000002; 89static const MPI_Datatype mpich_mpi_long __attribute__(( type_tag_for_datatype(mpi,long) )) = 0xa0000003; 90static const MPI_Datatype mpich_mpi_long_long_int __attribute__(( type_tag_for_datatype(mpi,long long int) )) = 0xa0000004; 91static const MPI_Datatype mpich_mpi_char __attribute__(( type_tag_for_datatype(mpi,char) )) = 0xa0000005; 92 93struct mpich_struct_mpi_float_int { float f; int i; }; 94struct mpich_struct_mpi_2int { int i1; int i2; }; 95static const MPI_Datatype mpich_mpi_float_int __attribute__(( type_tag_for_datatype(mpi, struct mpich_struct_mpi_float_int, layout_compatible) )) = 0xa0000006; 96static const MPI_Datatype mpich_mpi_2int __attribute__(( type_tag_for_datatype(mpi, struct mpich_struct_mpi_2int, layout_compatible) )) = 0xa0000007; 97#endif 98 99//===--- HDF5 headers mock ------------------------------------------------===// 100 101typedef int hid_t; 102void H5open(void); 103 104#ifndef HDF_PRIVATE 105#define H5OPEN H5open(), 106#else 107#define H5OPEN 108#endif 109 110#define H5T_NATIVE_CHAR (CHAR_MIN?H5T_NATIVE_SCHAR:H5T_NATIVE_UCHAR) 111#define H5T_NATIVE_SCHAR (H5OPEN H5T_NATIVE_SCHAR_g) 112#define H5T_NATIVE_UCHAR (H5OPEN H5T_NATIVE_UCHAR_g) 113#define H5T_NATIVE_INT (H5OPEN H5T_NATIVE_INT_g) 114#define H5T_NATIVE_LONG (H5OPEN H5T_NATIVE_LONG_g) 115 116hid_t H5T_NATIVE_SCHAR_g __attribute__(( type_tag_for_datatype(hdf5,signed char) )); 117hid_t H5T_NATIVE_UCHAR_g __attribute__(( type_tag_for_datatype(hdf5,unsigned char) )); 118hid_t H5T_NATIVE_INT_g __attribute__(( type_tag_for_datatype(hdf5,int) )); 119hid_t H5T_NATIVE_LONG_g __attribute__(( type_tag_for_datatype(hdf5,long) )); 120 121void H5Dwrite(hid_t mem_type_id, const void *buf) __attribute__(( pointer_with_type_tag(hdf5,2,1) )); 122 123//===--- Tests ------------------------------------------------------------===// 124 125//===--- MPI 126 127struct pair_float_int 128{ 129 float f; int i; 130}; 131 132struct pair_int_int 133{ 134 int i1; int i2; 135}; 136 137void test_mpi_predefined_types( 138 int *int_buf, 139 long *long_buf1, 140 long *long_buf2, 141 void *void_buf, 142 struct pair_float_int *pfi, 143 struct pair_int_int *pii) 144{ 145 char char_buf[255]; 146 147 // Layout-compatible scalar types. 148 MPI_Send(int_buf, 1, MPI_INT); // no-warning 149 150 // Null pointer constant. 151 MPI_Send(0, 0, MPI_INT); // no-warning 152 MPI_Send(NULL, 0, MPI_INT); // no-warning 153 154 // Layout-compatible class types. 155 MPI_Send(pfi, 1, MPI_FLOAT_INT); // no-warning 156 MPI_Send(pii, 1, MPI_2INT); // no-warning 157 158 // Layout-incompatible scalar types. 159 MPI_Send(long_buf1, 1, MPI_INT); // expected-warning {{argument type 'long *' doesn't match specified 'mpi' type tag that requires 'int *'}} 160 161 // Layout-incompatible class types. 162 MPI_Send(pii, 1, MPI_FLOAT_INT); // expected-warning {{argument type 'struct pair_int_int *' doesn't match specified 'mpi' type tag}} 163 MPI_Send(pfi, 1, MPI_2INT); // expected-warning {{argument type 'struct pair_float_int *' doesn't match specified 'mpi' type tag}} 164 165 // Layout-incompatible class-scalar types. 166 MPI_Send(long_buf1, 1, MPI_2INT); // expected-warning {{argument type 'long *' doesn't match specified 'mpi' type tag}} 167 168 // Function with two buffers. 169 MPI_Gather(long_buf1, 1, MPI_INT, // expected-warning {{argument type 'long *' doesn't match specified 'mpi' type tag that requires 'int *'}} 170 long_buf2, 1, MPI_INT); // expected-warning {{argument type 'long *' doesn't match specified 'mpi' type tag that requires 'int *'}} 171 172 // Array buffers should work like pointer buffers. 173 MPI_Send(char_buf, 255, MPI_CHAR); // no-warning 174 175 // Explicit casts should not be dropped. 176 MPI_Send((int *) char_buf, 255, MPI_INT); // no-warning 177 MPI_Send((int *) char_buf, 255, MPI_CHAR); // expected-warning {{argument type 'int *' doesn't match specified 'mpi' type tag that requires 'char *'}} 178 179 // `void*' buffer should never warn. 180 MPI_Send(void_buf, 255, MPI_CHAR); // no-warning 181 182 // We expect that MPI_IN_PLACE is `void*', shouldn't warn. 183 MPI_Gather(MPI_IN_PLACE, 0, MPI_INT, 184 int_buf, 1, MPI_INT); 185 186 // Special handling for MPI_DATATYPE_NULL: buffer pointer should be either 187 // a `void*' pointer or a null pointer constant. 188 MPI_Gather(NULL, 0, MPI_DATATYPE_NULL, // no-warning 189 int_buf, 1, MPI_INT); 190 191 MPI_Gather(int_buf, 0, MPI_DATATYPE_NULL, // expected-warning {{specified mpi type tag requires a null pointer}} 192 int_buf, 1, MPI_INT); 193} 194 195MPI_Datatype my_int_datatype __attribute__(( type_tag_for_datatype(mpi,int) )); 196 197struct S1 { int a; int b; }; 198MPI_Datatype my_s1_datatype __attribute__(( type_tag_for_datatype(mpi,struct S1) )); 199 200// Layout-compatible to S1, but should be treated as a different type. 201struct S2 { int a; int b; }; 202MPI_Datatype my_s2_datatype __attribute__(( type_tag_for_datatype(mpi,struct S2) )); 203 204enum E1 { Foo }; 205MPI_Datatype my_e1_datatype __attribute__(( type_tag_for_datatype(mpi,enum E1) )); 206 207void test_user_types(int *int_buf, 208 long *long_buf, 209 struct S1 *s1_buf, 210 struct S2 *s2_buf, 211 enum E1 *e1_buf) 212{ 213 MPI_Send(int_buf, 1, my_int_datatype); // no-warning 214 MPI_Send(long_buf, 1, my_int_datatype); // expected-warning {{argument type 'long *' doesn't match specified 'mpi' type tag that requires 'int *'}} 215 216 MPI_Send(s1_buf, 1, my_s1_datatype); // no-warning 217 MPI_Send(s1_buf, 1, my_s2_datatype); // expected-warning {{argument type 'struct S1 *' doesn't match specified 'mpi' type tag that requires 'struct S2 *'}} 218 219 MPI_Send(long_buf, 1, my_s1_datatype); // expected-warning {{argument type 'long *' doesn't match specified 'mpi' type tag that requires 'struct S1 *'}} 220 MPI_Send(s1_buf, 1, MPI_INT); // expected-warning {{argument type 'struct S1 *' doesn't match specified 'mpi' type tag that requires 'int *'}} 221 222 MPI_Send(e1_buf, 1, my_e1_datatype); // no-warning 223 MPI_Send(e1_buf, 1, MPI_INT); // expected-warning {{argument type 'enum E1 *' doesn't match specified 'mpi' type tag that requires 'int *'}} 224 MPI_Send(int_buf, 1, my_e1_datatype); // expected-warning {{argument type 'int *' doesn't match specified 'mpi' type tag that requires 'enum E1 *'}} 225} 226 227MPI_Datatype my_unknown_datatype; 228 229void test_not_annotated(int *int_buf, 230 long *long_buf, 231 MPI_Datatype type) 232{ 233 // Using 'MPI_Datatype's without attributes should not produce warnings. 234 MPI_Send(long_buf, 1, my_unknown_datatype); // no-warning 235 MPI_Send(int_buf, 1, type); // no-warning 236} 237 238struct S1_compat { int a; int b; }; 239MPI_Datatype my_s1_compat_datatype 240 __attribute__(( type_tag_for_datatype(mpi, struct S1_compat, layout_compatible) )); 241 242struct S3 { int a; long b; double c; double d; struct S1 s1; }; 243struct S3_compat { int a; long b; double c; double d; struct S2 s2; }; 244MPI_Datatype my_s3_compat_datatype 245 __attribute__(( type_tag_for_datatype(mpi, struct S3_compat, layout_compatible) )); 246 247struct S4 { char c; }; 248struct S4_compat { signed char c; }; 249MPI_Datatype my_s4_compat_datatype 250 __attribute__(( type_tag_for_datatype(mpi, struct S4_compat, layout_compatible) )); 251 252union U1 { int a; long b; double c; double d; struct S1 s1; }; 253union U1_compat { long b; double c; struct S2 s; int a; double d; }; 254MPI_Datatype my_u1_compat_datatype 255 __attribute__(( type_tag_for_datatype(mpi, union U1_compat, layout_compatible) )); 256 257union U2 { int a; long b; double c; struct S1 s1; }; 258MPI_Datatype my_u2_datatype 259 __attribute__(( type_tag_for_datatype(mpi, union U2, layout_compatible) )); 260 261void test_layout_compatibility(struct S1 *s1_buf, struct S3 *s3_buf, 262 struct S4 *s4_buf, 263 union U1 *u1_buf, union U2 *u2_buf) 264{ 265 MPI_Send(s1_buf, 1, my_s1_compat_datatype); // no-warning 266 MPI_Send(s3_buf, 1, my_s3_compat_datatype); // no-warning 267 MPI_Send(s1_buf, 1, my_s3_compat_datatype); // expected-warning {{argument type 'struct S1 *' doesn't match specified 'mpi' type tag}} 268 MPI_Send(s4_buf, 1, my_s4_compat_datatype); // expected-warning {{argument type 'struct S4 *' doesn't match specified 'mpi' type tag}} 269 MPI_Send(u1_buf, 1, my_u1_compat_datatype); // no-warning 270 MPI_Send(u1_buf, 1, my_u2_datatype); // expected-warning {{argument type 'union U1 *' doesn't match specified 'mpi' type tag}} 271 MPI_Send(u2_buf, 1, my_u1_compat_datatype); // expected-warning {{argument type 'union U2 *' doesn't match specified 'mpi' type tag}} 272} 273 274// There is an MPI_REAL predefined in MPI, but some existing MPI programs do 275// this. 276typedef float real; 277#define MPI_REAL MPI_FLOAT 278 279void test_mpi_real_user_type(real *real_buf, float *float_buf) 280{ 281 MPI_Send(real_buf, 1, MPI_REAL); // no-warning 282 MPI_Send(real_buf, 1, MPI_FLOAT); // no-warning 283 MPI_Send(float_buf, 1, MPI_REAL); // no-warning 284 MPI_Send(float_buf, 1, MPI_FLOAT); // no-warning 285} 286 287//===--- HDF5 288 289void test_hdf5(char *char_buf, 290 signed char *schar_buf, 291 unsigned char *uchar_buf, 292 int *int_buf, 293 long *long_buf) 294{ 295 H5Dwrite(H5T_NATIVE_CHAR, char_buf); // no-warning 296#ifdef __CHAR_UNSIGNED__ 297 H5Dwrite(H5T_NATIVE_CHAR, schar_buf); // expected-warning {{argument type 'signed char *' doesn't match specified 'hdf5' type tag that requires 'unsigned char *'}} 298 H5Dwrite(H5T_NATIVE_CHAR, uchar_buf); // no-warning 299#else 300 H5Dwrite(H5T_NATIVE_CHAR, schar_buf); // no-warning 301 H5Dwrite(H5T_NATIVE_CHAR, uchar_buf); // expected-warning {{argument type 'unsigned char *' doesn't match specified 'hdf5' type tag that requires 'signed char *'}} 302#endif 303 H5Dwrite(H5T_NATIVE_SCHAR, schar_buf); // no-warning 304 H5Dwrite(H5T_NATIVE_UCHAR, uchar_buf); // no-warning 305 H5Dwrite(H5T_NATIVE_INT, int_buf); // no-warning 306 H5Dwrite(H5T_NATIVE_LONG, long_buf); // no-warning 307 308#ifdef __CHAR_UNSIGNED__ 309 H5Dwrite(H5T_NATIVE_CHAR, int_buf); // expected-warning {{argument type 'int *' doesn't match specified 'hdf5' type tag that requires 'unsigned char *'}} 310#else 311 H5Dwrite(H5T_NATIVE_CHAR, int_buf); // expected-warning {{argument type 'int *' doesn't match specified 'hdf5' type tag that requires 'signed char *'}} 312#endif 313 H5Dwrite(H5T_NATIVE_INT, long_buf); // expected-warning {{argument type 'long *' doesn't match specified 'hdf5' type tag that requires 'int *'}} 314 315 // FIXME: we should warn here, but it will cause false positives because 316 // different kinds may use same magic values. 317 //H5Dwrite(MPI_INT, int_buf); 318} 319 320