1 /* PR 21171.  Ivopts should not rewrite references to volatile memory.  */
2 /* { dg-do compile } */
3 /* { dg-options "-O1 -fdump-tree-optimized" } */
4 
5 typedef	unsigned int u_int32_t;
6 typedef	unsigned char u_int8_t;
7 
8 #define	AIC_VECTORS	32
9 
10 typedef volatile struct AT91RM9200_regs {
11   u_int32_t	SVR[AIC_VECTORS];
12 } AT91RM9200_regs_t;
13 
14 #define CPUReg  ((AT91RM9200_regs_t*)0xFFF00000)
15 
16 extern const u_int32_t __IntTable[AIC_VECTORS];
17 
main()18 int main()
19 {
20   int c;
21 
22   for (c = 0; c < AIC_VECTORS; c++)
23     CPUReg->SVR[c] = __IntTable[c];
24 
25   return 0;
26 }
27 
28 /* { dg-final { scan-tree-dump-times "SVR" 1 "optimized"} } */
29