1 /* PR tree-optimization/83337 */ 2 /* { dg-do run { target int32plus } } */ 3 /* { dg-options "-O2 -floop-interchange" } */ 4 /* { dg-require-effective-target alloca } */ 5 /* { dg-skip-if "too big stack" { visium-*-* } } */ 6 7 /* Copied from graphite/interchange-5.c */ 8 9 #define DEBUG 0 10 #if DEBUG 11 #include <stdio.h> 12 #endif 13 14 #define N 100 15 #define M 1111 16 17 extern void abort (); 18 19 static void __attribute__((noipa)) foo(int n)20foo (int n) 21 { 22 int i, j; 23 struct S { char d[n]; int a : 3; int b : 17; int c : 12; }; 24 struct S A[N][M]; 25 26 for (i = 0; i < N; i++) 27 { 28 asm volatile ("" : : "g" (&A[0][0]) : "memory"); 29 for (j = 0; j < M; j++) 30 A[i][j].b = 2; 31 } 32 asm volatile ("" : : "g" (&A[0][0]) : "memory"); 33 34 for (i = 0; i < M; i++) 35 for (j = 0; j < N; j++) 36 A[j][i].b = 5 * A[j][i].b; 37 38 asm volatile ("" : : "g" (&A[0][0]) : "memory"); 39 int res = A[0][0].b + A[N-1][M-1].b; 40 41 #if DEBUG 42 fprintf (stderr, "res = %d \n", res); 43 #endif 44 45 if (res != 20) 46 abort (); 47 } 48 49 int main(void)50main (void) 51 { 52 foo (1); 53 foo (8); 54 return 0; 55 } 56