https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77289
--- Comment #6 from Peter Bergner <bergner at gcc dot gnu.org> ---
Another similar test case, but thi sone I'm able to make fail on a 64-bit LE
compile.
bergner@genoa:~/gcc/BUGS/PR77289$ cat q.i
void dummy (long *);
long bar (long);
void
foo (long a, long b)
{
long array[128];
long *c = array;
for (b=0; b < a; b++)
c[b] = bar (c[b]);
dummy (c);
}
bergner@genoa:~/gcc/BUGS/PR77289$
/home/bergner/gcc/build/gcc-fsf-mainline-pr77289/gcc/xgcc
-B/home/bergner/gcc/build/gcc-fsf-mainline-pr77289/gcc -O3 -mcpu=power7
-funroll-loops -ffast-math -mlra -S -mupdate -fno-auto-inc-dec q.i
bergner@genoa:~/gcc/BUGS/PR77289$
/home/bergner/gcc/build/gcc-fsf-mainline-pr77289-base/gcc/xgcc
-B/home/bergner/gcc/build/gcc-fsf-mainline-pr77289-base/gcc -O3 -mcpu=power7
-funroll-loops -ffast-math -mlra -S -mupdate -fno-auto-inc-dec q.i
q.i: In function ‘foo’:
q.i:11:1: error: insn does not satisfy its constraints:
}
^
(insn 91 93 92 15 (parallel [
(set (reg:DI 3 3)
(mem:DI (plus:DI (reg/f:DI 1 1)
(const_int 40 [0x28])) [1 MEM[base: _7, offset: 0B]+0
S8 A64]))
(set (reg:DI 31 31 [orig:209 ivtmp.9 ] [209])
(plus:DI (reg/f:DI 1 1)
(const_int 40 [0x28])))
]) q.i:9 590 {*movdi_update1}
(nil))
