[Bug c/40759] New: segfault

regehr at cs dot utah dot edu gcc-bugzilla@gcc.gnu.org
Wed Jul 15 04:13:00 GMT 2009

regehr@john-home:~/volatile/tmp173$ current-gcc -c -Wall -O2 small.c
small.c: In function ‘func_150’:
small.c:65:1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

regehr@john-home:~/volatile/tmp173$ current-gcc -v

Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../configure --prefix=/home/regehr/z/tmp/gcc-r149650-install
--program-prefix=r149650- --enable-languages=c,c++
Thread model: posix
gcc version 4.5.0 20090714 (experimental) (GCC) 

regehr@john-home:~/volatile/tmp173$ cat small.c

struct S0 {
  signed char f0;
  signed char f4;

struct S0 g_19 = {
  7L, 0L

struct S0 g_39 = {
  0L, 0x49L

struct S0 g_90 = {
  1L, 0

signed char g_125;
signed char g_198;
signed char g_218;

signed char func_17 (int p_18, struct S0 p_20, signed char p_22, signed char
  return p_20.f0;

signed char func_61 (int p_63, signed char p_64, signed char p_65)
  return 0;

struct S0 func_176 (int p_178, int p_179)
  return g_90;

struct S0 func_160 (int p_161, int p_163)
  struct S0 l_240 = {
    9L, 0L
  if (func_17 (1, func_176 (g_218, 1), 1, 1))
      struct S0 l_253 = {
        0xE0, 0xB4L
      return l_253;
  return l_240;

struct S0 func_150 (int p_151, signed char p_153, signed char p_154, signed
char p_155)
  signed char l_156 = 0;
  signed char l_266 = 0;
  if (func_17
       (g_125, l_156,
        func_61 (1, func_17 (1, func_160 (l_266, g_90.f4), p_153, 1), 1)),
       func_176 (g_39.f0, 1), 1, 1))
      g_198 = 1;
  return g_19;

           Summary: segfault
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: regehr at cs dot utah dot edu
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


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