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/* PR middle-end/48335 */
/* { dg-do compile } */
/* { dg-options "-O2 -fno-tree-sra" } */
 
typedef short U __attribute__((may_alias, aligned (1)));
 
struct S
{
  double d;
};
 
int
f1 (struct S x)
{
  struct S s = x;
  return ((U *)((char *) &s.d + 1))[-1];
}
 
int
f2 (struct S x)
{
  struct S s = x;
  return ((U *)((char *) &s.d + 1))[-2];
}
 
int
f3 (struct S x)
{
  struct S s = x;
  return ((U *)((char *) &s.d + 1))[5];
}

Line No.	Rev	Author	Line
1	689	jeremybenn	`/* PR middle-end/48335 */`
2			`/* { dg-do compile } */`
3			`/* { dg-options "-O2 -fno-tree-sra" } */`
4
5			`typedef short U __attribute__((may_alias, aligned (1)));`
6
7			`struct S`
8			`{`
9			`double d;`
10			`};`
11
12			`int`
13			`f1 (struct S x)`
14			`{`
15			`struct S s = x;`
16			`return ((U )((char ) &s.d + 1))[-1];`
17			`}`
18
19			`int`
20			`f2 (struct S x)`
21			`{`
22			`struct S s = x;`
23			`return ((U )((char ) &s.d + 1))[-2];`
24			`}`
25
26			`int`
27			`f3 (struct S x)`
28			`{`
29			`struct S s = x;`
30			`return ((U )((char ) &s.d + 1))[5];`
31			`}`

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [pr48335-8.c] - Blame information for rev 754