https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71533
Bug ID: 71533
Summary: -fdump-tree-fre1 hangs while printing an unnormal long
double
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: ch3root at openwall dot com
Target Milestone: ---
`gcc -O1 -fdump-tree-fre1 test.c` hangs presumably while trying to print an
unnormal long double value. I think it shouldn't hang even if the program is
invalid.
Source code:
----------------------------------------------------------------------
#include <string.h>
#include <stdio.h>
int main()
{
long double d;
memcpy(&d, "\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0", sizeof d);
printf("%Lf\n", d);
}
----------------------------------------------------------------------
gcc version: gcc (GCC) 7.0.0 20160614 (experimental)
