1 /* Test that the compiler properly optimizes floating point multiply and add 2 instructions vector into pmacsdd/etc. on XOP systems. */ 3 4 /* { dg-do compile } */ 5 /* { dg-require-effective-target lp64 } */ 6 /* { dg-options "-O2 -mxop -mno-avx2 -ftree-vectorize -fno-vect-cost-model" } */ 7 8 extern void exit (int); 9 10 typedef long __m128i __attribute__ ((__vector_size__ (16), __may_alias__)); 11 12 #define SIZE 10240 13 14 union { 15 __m128i i_align; 16 long i64[SIZE]; 17 } a, b, c, d; 18 19 void imul64(void)20imul64 (void) 21 { 22 int i; 23 24 for (i = 0; i < SIZE; i++) 25 a.i64[i] = b.i64[i] * c.i64[i]; 26 } 27 main()28int main () 29 { 30 imul64 (); 31 exit (0); 32 } 33 34 /* { dg-final { scan-assembler "vpmulld" } } */ 35 /* { dg-final { scan-assembler "vphadddq" } } */ 36