Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/loop-unswitch-4.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-do run } */ /* { dg-options "-O2 -funswitch-loops" } */ #include <stdlib.h> __attribute__ ((noinline)) void foo (float **a, float **b, float *c, int n, int m, int l) { int i,j,k; float s; for (i=0; i<l; i++) for (j=0; j<n; j++) for (k=0; k<m; k++) c[i] += a[i][k] * b[k][j]; } int main() { const int N = 32; float **ar1, **ar2; float *res; int i, j; ar1 = (float **)malloc (N * sizeof (float*)); ar2 = (float **)malloc (N * sizeof (float*)); res = (float *)malloc( N * sizeof (float)); for (i=0; i<N; i++) { ar1[i] = (float*)malloc (N * sizeof (float)); ar2[i] = (float*)malloc (N * sizeof (float)); } for (i=0; i<N; i++) { for (j=0; j<N; j++) { ar1[i][j] = 2.0f; ar2[i][j] = 1.5f; } res[i] = 0.0f; } foo (ar1, ar2, res, N, N, N); for (i=0; i<N; i++) if (res[i] != 3072.0f) abort(); for (i=0; i<N; i++) res[i] = 0.0f; foo (ar1, ar2, res, N, 0, N); for (i=0; i<N; i++) if (res[i] != 0.0f) abort(); return 0; }