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re PR tree-optimization/41555 (possible miscompilation in whole-program mode)

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2009-10-11  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/41555
	* gcc.dg/torture/pr41555.c: New testcase.

From-SVN: r152639
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Richard Guenther 2009-10-11 11:24:10 +00:00 committed by Richard Biener
parent 57703d27e2
commit b89127e20f
2 changed files with 123 additions and 0 deletions
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5
gcc/testsuite/ChangeLog
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2009-10-11 Richard Guenther <rguenther@suse.de>
PR tree-optimization/41555
* gcc.dg/torture/pr41555.c: New testcase.
2009-10-10 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/35862

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gcc/testsuite/gcc.dg/torture/pr41555.c Normal file
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/* { dg-do run } */
#include <stdint.h>
#include <limits.h>
extern void abort (void);
static uint64_t safe_div_func_uint64_t_u_u (uint64_t _ui1, uint64_t _ui2)
{
if (_ui2==0) return _ui1;
return _ui1 / _ui2;
}
static int64_t safe_div_func_int64_t_s_s (int64_t _si1, int64_t _si2)
{
if (_si2==0 || (_si1==INT64_MIN && _si2==-1)) return _si1;
return _si1 / _si2;
}
#define safe_add_macro_int8_t_s_s(si1,si2) \
((((((int8_t)(si1))>((int8_t)0)) && (((int8_t)(si2))>((int8_t)0)) && (((int8_t)(si1)) > ((INT8_MAX)-((int8_t)(si2))))) \
|| ((((int8_t)(si1))<((int8_t)0)) && (((int8_t)(si2))<((int8_t)0)) && (((int8_t)(si1)) < ((INT8_MIN)-((int8_t)(si2)))))) \
? ((int8_t)(si1)) \
: (((int8_t)(si1)) + ((int8_t)(si2))) \
)
static int8_t
safe_add_func_int8_t_s_s(int8_t _si1, int8_t _si2)
{
return safe_add_macro_int8_t_s_s(_si1,_si2);
}
#define safe_rshift_macro_uint64_t_u_s(left,right) \
(((((int)(right)) < ((uint64_t)0)) \
|| (((int)(right)) >= sizeof(uint64_t)*CHAR_BIT)) \
? ((uint64_t)(left)) \
: (((uint64_t)(left)) >> ((int)(right))))
static uint64_t
safe_rshift_func_uint64_t_u_s(uint64_t _left, int _right)
{
return safe_rshift_macro_uint64_t_u_s(_left,_right);
}
#define safe_mul_macro_int32_t_s_s(si1,si2) \
((((((int32_t)(si1)) > ((int32_t)0)) && (((int32_t)(si2)) > ((int32_t)0)) && (((int32_t)(si1)) > ((INT32_MAX) / ((int32_t)(si2))))) || \
((((int32_t)(si1)) > ((int32_t)0)) && (((int32_t)(si2)) <= ((int32_t)0)) && (((int32_t)(si2)) < ((INT32_MIN) / ((int32_t)(si1))))) || \
((((int32_t)(si1)) <= ((int32_t)0)) && (((int32_t)(si2)) > ((int32_t)0)) && (((int32_t)(si1)) < ((INT32_MIN) / ((int32_t)(si2))))) || \
((((int32_t)(si1)) <= ((int32_t)0)) && (((int32_t)(si2)) <= ((int32_t)0)) && (((int32_t)(si1)) != ((int32_t)0)) && (((int32_t)(si2)) < ((INT32_MAX) / ((int32_t)(si1)))))) \
? ((int32_t)(si1)) \
: ((int32_t)(si1)) * ((int32_t)(si2)))
static int32_t
safe_mul_func_int32_t_s_s (int32_t _si1, int32_t _si2)
{
return safe_mul_macro_int32_t_s_s(_si1,_si2);
}
static int8_t g_39;
static volatile uint8_t g_46;
static uint8_t g_47;
static uint8_t *g_62;
static uint8_t g_79;
static int8_t g_101 = -1L;
static uint8_t *g_114;
static uint8_t *g_126;
static uint8_t g_133;
static uint16_t func_35 (int32_t * p_36, uint64_t p_37, uint32_t p_38);
static uint16_t func_35 (int32_t * p_36, uint64_t p_37, uint32_t p_38)
{
if (g_62 != 0)
abort ();
for (g_39 = 1; g_39 < 0; g_39 = 1)
{
}
return 1;
}
static int32_t func_19 (int32_t p_20);
static int32_t func_19 (int32_t p_20)
{
if (1 !=
safe_div_func_uint64_t_u_u ((safe_div_func_int64_t_s_s (p_20, 1)),
g_101))
{
func_35 (0, 1 <= (safe_add_func_int8_t_s_s (g_47, g_46)) > p_20 < 1, 1);
g_133 = 1;
if (g_114 != 0)
abort ();
if (g_126 != 0)
abort ();
}
return 1;
}
static uint8_t func_2 (int32_t p_6);
static uint8_t func_2 (int32_t p_6)
{
for (1; p_6 > 1; 1)
return 0;
func_19 (g_79);
if (safe_mul_func_int32_t_s_s
((0, 1 < (safe_rshift_func_uint64_t_u_s (1 ^ p_6, 1))),
(func_35 (&p_6, 1, 1) < 1)))
{
}
return 1;
}
int main (void)
{
func_2 (1);
if (g_133 != 1)
abort ();
return 0;
}