Viewing file: ppc-fma-3.c (2.39 KB) -rw-r--r-- Select action/file-type: (+) | (+) | (+) | Code (+) | Session (+) | (+) | SDB (+) | (+) | (+) | (+) | (+) | (+) |
/* { dg-do compile { target { powerpc*-*-* } } } */ /* { dg-skip-if "" { powerpc*-*-darwin* } } */ /* { dg-require-effective-target powerpc_altivec_ok } */ /* { dg-require-effective-target powerpc_fprs } */ /* { dg-options "-O3 -ftree-vectorize -mdejagnu-cpu=power6 -maltivec -ffast-math -fno-unroll-loops" } */ /* { dg-final { scan-assembler-times "vmaddfp" 2 } } */ /* { dg-final { scan-assembler-times "fmadd " 2 } } */ /* { dg-final { scan-assembler-times "fmadds" 2 } } */ /* { dg-final { scan-assembler-times "fmsub " 1 } } */ /* { dg-final { scan-assembler-times "fmsubs" 1 } } */ /* { dg-final { scan-assembler-times "fnmadd " 1 } } */ /* { dg-final { scan-assembler-times "fnmadds" 1 } } */ /* { dg-final { scan-assembler-times "fnmsub " 1 } } */ /* { dg-final { scan-assembler-times "fnmsubs" 1 } } */
/* All functions should generate an appropriate (a * b) + c instruction since -mfused-madd is on by default. */
double builtin_fma (double b, double c, double d) { return __builtin_fma (b, c, d); /* fmadd */ }
double builtin_fms (double b, double c, double d) { return __builtin_fma (b, c, -d); /* fmsub */ }
double builtin_fnma (double b, double c, double d) { return - __builtin_fma (b, c, d); /* fnmadd */ }
double builtin_fnms (double b, double c, double d) { return - __builtin_fma (b, c, -d); /* fnmsub */ }
float builtin_fmaf (float b, float c, float d) { return __builtin_fmaf (b, c, d); /* fmadds */ }
float builtin_fmsf (float b, float c, float d) { return __builtin_fmaf (b, c, -d); /* fmsubs */ }
float builtin_fnmaf (float b, float c, float d) { return - __builtin_fmaf (b, c, d); /* fnmadds */ }
float builtin_fnmsf (float b, float c, float d) { return - __builtin_fmaf (b, c, -d); /* fnmsubs */ }
double normal_fma (double b, double c, double d) { return (b * c) + d; /* fmadd */ }
float normal_fmaf (float b, float c, float d) { return (b * c) + d; /* fmadds */ }
#ifndef SIZE #define SIZE 1024 #endif
float vfa[SIZE] __attribute__((__aligned__(32))); float vfb[SIZE] __attribute__((__aligned__(32))); float vfc[SIZE] __attribute__((__aligned__(32))); float vfd[SIZE] __attribute__((__aligned__(32)));
void vector_fmaf (void) { int i;
for (i = 0; i < SIZE; i++) vfa[i] = __builtin_fmaf (vfb[i], vfc[i], vfd[i]); /* vaddfp */ }
void vnormal_fmaf (void) { int i;
for (i = 0; i < SIZE; i++) vfa[i] = (vfb[i] * vfc[i]) + vfd[i]; /* vaddfp */ }
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