1 /*-
28  * Test the correctness and C99-compliance of various fenv.h features.
44 #include "test-utils.h"
56 /* init_exceptsets() initializes this to the power set of std_excepts[] */
62  * Initialize std_except_sets[] to the power set of std_excepts[]
74 			std_except_sets[i] |= std_excepts[j] & ((~sr & 1) - 1);  in do_setup()
79  * Raise a floating-point exception without relying on the standard
121 	 * or a floating-point instruction to get synchronous exceptions.  in raiseexcept()
137 	 * This test works just as well with 0.0 - 0.0, except on ia64  in getround()
138 	 * where 0.0 - 0.0 gives the wrong sign when rounding downwards.  in getround()
141 	d -= 1.0;  in getround()
165  * could be multiple machine-specific default environments.
171 	fenv_t env;  in ATF_TC_BODY()  local
173 	fegetenv(&env);  in ATF_TC_BODY()
175 	hexdump(&env, sizeof(env), "current fenv ", HD_OMIT_CHARS);  in ATF_TC_BODY()
176 	hexdump(FE_DFL_ENV, sizeof(env), "default fenv ", HD_OMIT_CHARS);  in ATF_TC_BODY()
181 	 * set once fnstenv returns.  in ATF_TC_BODY()
184 	 * by zero'ing out the env.__x87.__other field (example: AMD Opteron  in ATF_TC_BODY()
186 	 * env.__x87.__other field will contain after fnstenv is executed, so  in ATF_TC_BODY()
187 	 * the values in env.__x87.__other could be filled with arbitrary  in ATF_TC_BODY()
193 	ATF_CHECK(memcmp(&env.__mxcsr, &FE_DFL_ENV->__mxcsr,  in ATF_TC_BODY()
194 	    sizeof(env.__mxcsr)) == 0);  in ATF_TC_BODY()
195 	ATF_CHECK(memcmp(&env.__x87.__control, &FE_DFL_ENV->__x87.__control,  in ATF_TC_BODY()
196 	    sizeof(env.__x87.__control)) == 0);  in ATF_TC_BODY()
197 	ATF_CHECK(memcmp(&env.__x87.__status, &FE_DFL_ENV->__x87.__status,  in ATF_TC_BODY()
198 	    sizeof(env.__x87.__status)) == 0);  in ATF_TC_BODY()
199 	ATF_CHECK(memcmp(&env.__x87.__tag, &FE_DFL_ENV->__x87.__tag,  in ATF_TC_BODY()
200 	    sizeof(env.__x87.__tag)) == 0);  in ATF_TC_BODY()
202 	ATF_CHECK_EQ(0, memcmp(&env, FE_DFL_ENV, sizeof(env)));  in ATF_TC_BODY()
222 		/* FE_ALL_EXCEPT might be special-cased, as on i386. */  in ATF_TC_BODY()
372 		 * Some platforms like powerpc may set extra exception bits. Since  in ATF_TC_BODY()
412 		    "set to trap: %#x vs %#x", except, ALL_STD_EXCEPT);  in ATF_TC_BODY()
439 			 * a floating-point exception.  in ATF_TC_BODY()
470 			case -1:	/* error */  in ATF_TC_BODY()
487 	fenv_t env;  in ATF_TC_BODY()  local
508 			 * a floating-point exception.  in ATF_TC_BODY()
521 				ATF_CHECK_EQ(0, feholdexcept(&env));  in ATF_TC_BODY()
528 				ATF_CHECK_EQ(0, feupdateenv(&env));  in ATF_TC_BODY()
544 			case -1:	/* error */  in ATF_TC_BODY()