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/* PR 21171.  Ivopts should not rewrite references to volatile memory.  */
/* { dg-do compile } */
/* { dg-options "-O1 -fdump-tree-optimized" } */
 
typedef unsigned int u_int32_t;
typedef unsigned char u_int8_t;
 
#define AIC_VECTORS     32
 
typedef volatile struct AT91RM9200_regs {
  u_int32_t     SVR[AIC_VECTORS];
} AT91RM9200_regs_t;
 
#define CPUReg  ((AT91RM9200_regs_t*)0xFFF00000)
 
extern const u_int32_t __IntTable[AIC_VECTORS];
 
int main()
{
  int c;
 
  for (c = 0; c < AIC_VECTORS; c++)
    CPUReg->SVR[c] = __IntTable[c];
 
  return 0;
}
 
/* { dg-final { scan-tree-dump-times "SVR" 1 "optimized"} } */
/* { dg-final { cleanup-tree-dump "optimized" } } */

Line No.	Rev	Author	Line
1	689	jeremybenn	`/* 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
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			`/* { dg-final { cleanup-tree-dump "optimized" } } */`

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [pr21171.c] - Blame information for rev 689