1 /* { dg-do compile } */ 2 /* { dg-additional-options "-ffast-math" } */ 3 /* { dg-additional-options "-mavx" { target { i?86-*-* x86_64-*-* } } } */ 4 fn1(double ** matrix,int column,int row,int n)5void fn1(double **matrix, int column, int row, int n) 6 { 7 int k; 8 for (k = 0; k < n; k++) 9 if (matrix[row][k] != matrix[column][k]) 10 { 11 matrix[column][k] = -matrix[column][k]; 12 matrix[row][k] = matrix[row][k] - matrix[column][k]; 13 } 14 } 15