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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.target/] [i386/] [fma4-256-nmaccXX.c] - Rev 318
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/* { dg-do run } */ /* { dg-require-effective-target fma4 } */ /* { dg-options "-O2 -mfma4" } */ #include "fma4-check.h" #include <x86intrin.h> #include <string.h> #define NUM 20 union { __m256 x[NUM]; float f[NUM * 8]; __m256d y[NUM]; double d[NUM * 4]; } dst, res, src1, src2, src3; /* Note that in macc*,msub*,mnmacc* and mnsub* instructions, the intermdediate product is not rounded, only the addition is rounded. */ static void init_nmaccps () { int i; for (i = 0; i < NUM * 8; i++) { src1.f[i] = i; src2.f[i] = i + 10; src3.f[i] = i + 20; } } static void init_nmaccpd () { int i; for (i = 0; i < NUM * 4; i++) { src1.d[i] = i; src2.d[i] = i + 10; src3.d[i] = i + 20; } } static int check_nmaccps () { int i, j, check_fails = 0; for (i = 0; i < NUM * 8; i = i + 8) for (j = 0; j < 8; j++) { res.f[i + j] = - (src1.f[i + j] * src2.f[i + j]) + src3.f[i + j]; if (dst.f[i + j] != res.f[i + j]) check_fails++; } return check_fails++; } static int check_nmaccpd () { int i, j, check_fails = 0; for (i = 0; i < NUM * 4; i = i + 4) for (j = 0; j < 4; j++) { res.d[i + j] = - (src1.d[i + j] * src2.d[i + j]) + src3.d[i + j]; if (dst.d[i + j] != res.d[i + j]) check_fails++; } return check_fails++; } static void fma4_test (void) { int i; init_nmaccps (); for (i = 0; i < NUM; i++) dst.x[i] = _mm256_nmacc_ps (src1.x[i], src2.x[i], src3.x[i]); if (check_nmaccps ()) abort (); init_nmaccpd (); for (i = 0; i < NUM; i++) dst.y[i] = _mm256_nmacc_pd (src1.y[i], src2.y[i], src3.y[i]); if (check_nmaccpd ()) abort (); }