File: pr103345.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (53 lines) | stat: -rw-r--r-- 1,379 bytes parent folder | download
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
49
50
51
52
53
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-bswap-details" } */

typedef __UINT32_TYPE__ uint32_t;
typedef unsigned char uint8_t;

uint32_t load_le_32_or(const uint8_t *ptr)
{
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
  return ((uint32_t)ptr[0]) |
         ((uint32_t)ptr[1] << 8) |
         ((uint32_t)ptr[2] << 16) |
         ((uint32_t)ptr[3] << 24);
#else
  return ((uint32_t)ptr[3]) |
         ((uint32_t)ptr[2] << 8) |
         ((uint32_t)ptr[1] << 16) |
         ((uint32_t)ptr[0] << 24);
#endif
}

uint32_t load_le_32_add(const uint8_t *ptr)
{
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
  return ((uint32_t)ptr[0]) +
         ((uint32_t)ptr[1] << 8) +
         ((uint32_t)ptr[2] << 16) +
         ((uint32_t)ptr[3] << 24);
#else
  return ((uint32_t)ptr[3]) +
         ((uint32_t)ptr[2] << 8) +
         ((uint32_t)ptr[1] << 16) +
         ((uint32_t)ptr[0] << 24);
#endif
}

uint32_t load_le_32_xor(const uint8_t *ptr)
{
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
  return ((uint32_t)ptr[0]) ^
         ((uint32_t)ptr[1] << 8) ^
         ((uint32_t)ptr[2] << 16) ^
         ((uint32_t)ptr[3] << 24);
#else
  return ((uint32_t)ptr[3]) ^
         ((uint32_t)ptr[2] << 8) ^
         ((uint32_t)ptr[1] << 16) ^
         ((uint32_t)ptr[0] << 24);
#endif
}

/* { dg-final { scan-tree-dump-times "32 bit load in target endianness found" 3 "bswap" } } */