gcc/testsuite/gcc.dg/pr54121.c

   1 /* PR target/54121 */
   2 /* Reported by Jan Engelhardt <jengelh@inai.de> */
   3
   4 /* { dg-do compile { target fpic } } */
   5 /* { dg-options "-std=gnu99 -O -fPIC -fprofile-generate" } */
   6 /* { dg-require-profiling "-fprofile-generate" } */
   7
   8 typedef __SIZE_TYPE__ size_t;
   9 typedef unsigned char uint8_t;
  10
  11 extern void *memcpy (void *__restrict __dest,
  12        __const void *__restrict __src, size_t __n)
  13      __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
  14
  15 typedef enum {
  16  LZMA_OK = 0,
  17  LZMA_STREAM_END = 1,
  18  LZMA_NO_CHECK = 2,
  19  LZMA_UNSUPPORTED_CHECK = 3,
  20  LZMA_GET_CHECK = 4,
  21  LZMA_MEM_ERROR = 5,
  22  LZMA_MEMLIMIT_ERROR = 6,
  23  LZMA_FORMAT_ERROR = 7,
  24  LZMA_OPTIONS_ERROR = 8,
  25  LZMA_DATA_ERROR = 9,
  26  LZMA_BUF_ERROR = 10,
  27  LZMA_PROG_ERROR = 11,
  28 } lzma_ret;
  29
  30 typedef enum {
  31  LZMA_RUN = 0,
  32  LZMA_SYNC_FLUSH = 1,
  33  LZMA_FULL_FLUSH = 2,
  34  LZMA_FINISH = 3
  35 } lzma_action;
  36
  37 typedef struct {
  38  void *( *alloc)(void *opaque, size_t nmemb, size_t size);
  39  void ( *free)(void *opaque, void *ptr);
  40  void *opaque;
  41 } lzma_allocator;
  42
  43 typedef struct lzma_coder_s lzma_coder;
  44
  45 typedef struct lzma_next_coder_s lzma_next_coder;
  46
  47 typedef struct lzma_filter_info_s lzma_filter_info;
  48
  49 typedef lzma_ret (*lzma_init_function)(
  50   lzma_next_coder *next, lzma_allocator *allocator,
  51   const lzma_filter_info *filters);
  52
  53 typedef lzma_ret (*lzma_code_function)(
  54   lzma_coder *coder, lzma_allocator *allocator,
  55   const uint8_t *restrict in, size_t *restrict in_pos,
  56   size_t in_size, uint8_t *restrict out,
  57   size_t *restrict out_pos, size_t out_size,
  58   lzma_action action);
  59
  60 typedef void (*lzma_end_function)(
  61   lzma_coder *coder, lzma_allocator *allocator);
  62
  63 typedef struct {
  64  uint8_t *buf;
  65  size_t pos;
  66  size_t size;
  67 } lzma_dict;
  68
  69 typedef struct {
  70  lzma_coder *coder;
  71  lzma_ret (*code)(lzma_coder *restrict coder,
  72    lzma_dict *restrict dict, const uint8_t *restrict in,
  73    size_t *restrict in_pos, size_t in_size);
  74 } lzma_lz_decoder;
  75
  76 struct lzma_coder_s {
  77  lzma_dict dict;
  78  lzma_lz_decoder lz;
  79 };
  80
  81 lzma_ret
  82 decode_buffer(lzma_coder *coder,
  83   const uint8_t *restrict in, size_t *restrict in_pos,
  84   size_t in_size, uint8_t *restrict out, size_t *restrict out_pos)
  85 {
  86  while (1) {
  87   const size_t dict_start = coder->dict.pos;
  88   const lzma_ret ret
  89     = coder->lz.code( coder->lz.coder, &coder->dict, in, in_pos, in_size);
  90   const size_t copy_size = coder->dict.pos - dict_start;
  91   memcpy(out + *out_pos, coder->dict.buf + dict_start, copy_size);
  92   if (ret != LZMA_OK || coder->dict.pos < coder->dict.size)
  93    return ret;
  94  }
  95 }