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* [Bug middle-end/67485] New: expmed.c sanitizer detects overflow
@ 2015-09-07 14:50 zeccav at gmail dot com
2021-02-21 7:53 ` [Bug middle-end/67485] " zeccav at gmail dot com
0 siblings, 1 reply; 2+ messages in thread
From: zeccav at gmail dot com @ 2015-09-07 14:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67485
Bug ID: 67485
Summary: expmed.c sanitizer detects overflow
Product: gcc
Version: 5.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
/* gcc sanitizer runtime error message*/
/* gcc/expmed.c:3026:42: runtime error: signed integer overflow:
-9223372036854775808 - 1 cannot be represented in type 'long int [3]*/
/* source line "val_so_far -= (HOST_WIDE_INT) 1 << log;" */
/* val_so_far == -9223372036854775808 */
/* log == 0 */
/* Target: x86_64-unknown-linux-gnu */
/* COLLECT_GCC_OPTIONS='-mtune=generic' '-march=x86-64' */
#define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
#define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
? ~ (t) 0 << (sizeof (t) * 8 - 1) : (t) 0))
#define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
typedef long int int64_t;
int64_t
to_int ()
{
int64_t sign;
return sign * INTTYPE_MAXIMUM (int64_t);
}
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug middle-end/67485] expmed.c sanitizer detects overflow
2015-09-07 14:50 [Bug middle-end/67485] New: expmed.c sanitizer detects overflow zeccav at gmail dot com
@ 2021-02-21 7:53 ` zeccav at gmail dot com
0 siblings, 0 replies; 2+ messages in thread
From: zeccav at gmail dot com @ 2021-02-21 7:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67485
Vittorio Zecca <zeccav at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #7 from Vittorio Zecca <zeccav at gmail dot com> ---
Resolved.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2015-09-07 14:50 [Bug middle-end/67485] New: expmed.c sanitizer detects overflow zeccav at gmail dot com
2021-02-21 7:53 ` [Bug middle-end/67485] " zeccav at gmail dot com
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