File: pr48335-3.c

package info (click to toggle)
gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 680,956 kB
  • sloc: ansic: 3,237,715; cpp: 896,882; ada: 772,854; f90: 144,254; asm: 68,788; makefile: 67,456; sh: 29,743; exp: 28,045; objc: 15,273; fortran: 11,885; python: 7,369; pascal: 5,375; awk: 3,725; perl: 2,872; yacc: 316; xml: 311; ml: 285; lex: 198; haskell: 122
file content (48 lines) | stat: -rw-r--r-- 682 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
 
/* 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;
};

void bar (struct S);

void
f1 (int x)
{
  struct S s = { .d = 0.0 };
  ((U *)((char *) &s.d + 1))[0] = x;
  __real__ s.d *= 7.0;
  bar (s);
}

void
f2 (int x)
{
  struct S s = { .d = 0.0 };
  ((U *)((char *) &s.d + 1))[1] = x;
  __real__ s.d *= 7.0;
  bar (s);
}

void
f3 (int x)
{
  struct S s = { .d = 0.0 };
  ((U *)((char *) &s.d + 1))[2] = x;
  __real__ s.d *= 7.0;
  bar (s);
}

void
f4 (int x)
{
  struct S s = { .d = 0.0 };
  ((U *)((char *) &s.d + 1))[3] = x;
  __real__ s.d *= 7.0;
  bar (s);
}