diff options
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.target/i386/fma4-fma.c')
-rw-r--r-- | gcc-4.8/gcc/testsuite/gcc.target/i386/fma4-fma.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.target/i386/fma4-fma.c b/gcc-4.8/gcc/testsuite/gcc.target/i386/fma4-fma.c new file mode 100644 index 000000000..63b35dc4b --- /dev/null +++ b/gcc-4.8/gcc/testsuite/gcc.target/i386/fma4-fma.c @@ -0,0 +1,82 @@ +/* Test that the compiler properly optimizes floating point multiply + and add instructions into vfmaddss, vfmsubss, vfnmaddss, + vfnmsubss on FMA4 systems. */ + +/* { dg-do compile { target { ! { ia32 } } } } */ +/* { dg-options "-O2 -mfma4" } */ + +extern void exit (int); + +float +flt_mul_add (float a, float b, float c) +{ + return (a * b) + c; +} + +double +dbl_mul_add (double a, double b, double c) +{ + return (a * b) + c; +} + +float +flt_mul_sub (float a, float b, float c) +{ + return (a * b) - c; +} + +double +dbl_mul_sub (double a, double b, double c) +{ + return (a * b) - c; +} + +float +flt_neg_mul_add (float a, float b, float c) +{ + return (-(a * b)) + c; +} + +double +dbl_neg_mul_add (double a, double b, double c) +{ + return (-(a * b)) + c; +} + +float +flt_neg_mul_sub (float a, float b, float c) +{ + return (-(a * b)) - c; +} + +double +dbl_neg_mul_sub (double a, double b, double c) +{ + return (-(a * b)) - c; +} + +float f[10] = { 2, 3, 4 }; +double d[10] = { 2, 3, 4 }; + +int main () +{ + f[3] = flt_mul_add (f[0], f[1], f[2]); + f[4] = flt_mul_sub (f[0], f[1], f[2]); + f[5] = flt_neg_mul_add (f[0], f[1], f[2]); + f[6] = flt_neg_mul_sub (f[0], f[1], f[2]); + + d[3] = dbl_mul_add (d[0], d[1], d[2]); + d[4] = dbl_mul_sub (d[0], d[1], d[2]); + d[5] = dbl_neg_mul_add (d[0], d[1], d[2]); + d[6] = dbl_neg_mul_sub (d[0], d[1], d[2]); + exit (0); +} + +/* { dg-final { scan-assembler "vfmaddss" } } */ +/* { dg-final { scan-assembler "vfmaddsd" } } */ +/* { dg-final { scan-assembler "vfmsubss" } } */ +/* { dg-final { scan-assembler "vfmsubsd" } } */ +/* { dg-final { scan-assembler "vfnmaddss" } } */ +/* { dg-final { scan-assembler "vfnmaddsd" } } */ +/* { dg-final { scan-assembler "vfnmsubss" } } */ +/* { dg-final { scan-assembler "vfnmsubsd" } } */ |