1/* Test that the compiler properly optimizes floating point multiply 2 and add instructions into vfmaddss, vfmsubss, vfnmaddss, 3 vfnmsubss on FMA4 systems. */ 4 5/* { dg-do compile { target { ! { ia32 } } } } */ 6/* { dg-options "-O2 -mfma4 -mno-fma" } */ 7 8extern void exit (int); 9 10float 11flt_mul_add (float a, float b, float c) 12{ 13 return (a * b) + c; 14} 15 16double 17dbl_mul_add (double a, double b, double c) 18{ 19 return (a * b) + c; 20} 21 22float 23flt_mul_sub (float a, float b, float c) 24{ 25 return (a * b) - c; 26} 27 28double 29dbl_mul_sub (double a, double b, double c) 30{ 31 return (a * b) - c; 32} 33 34float 35flt_neg_mul_add (float a, float b, float c) 36{ 37 return (-(a * b)) + c; 38} 39 40double 41dbl_neg_mul_add (double a, double b, double c) 42{ 43 return (-(a * b)) + c; 44} 45 46float 47flt_neg_mul_sub (float a, float b, float c) 48{ 49 return (-(a * b)) - c; 50} 51 52double 53dbl_neg_mul_sub (double a, double b, double c) 54{ 55 return (-(a * b)) - c; 56} 57 58float f[10] = { 2, 3, 4 }; 59double d[10] = { 2, 3, 4 }; 60 61int main () 62{ 63 f[3] = flt_mul_add (f[0], f[1], f[2]); 64 f[4] = flt_mul_sub (f[0], f[1], f[2]); 65 f[5] = flt_neg_mul_add (f[0], f[1], f[2]); 66 f[6] = flt_neg_mul_sub (f[0], f[1], f[2]); 67 68 d[3] = dbl_mul_add (d[0], d[1], d[2]); 69 d[4] = dbl_mul_sub (d[0], d[1], d[2]); 70 d[5] = dbl_neg_mul_add (d[0], d[1], d[2]); 71 d[6] = dbl_neg_mul_sub (d[0], d[1], d[2]); 72 exit (0); 73} 74 75/* { dg-final { scan-assembler "vfmaddss" } } */ 76/* { dg-final { scan-assembler "vfmaddsd" } } */ 77/* { dg-final { scan-assembler "vfmsubss" } } */ 78/* { dg-final { scan-assembler "vfmsubsd" } } */ 79/* { dg-final { scan-assembler "vfnmaddss" } } */ 80/* { dg-final { scan-assembler "vfnmaddsd" } } */ 81/* { dg-final { scan-assembler "vfnmsubss" } } */ 82/* { dg-final { scan-assembler "vfnmsubsd" } } */ 83