https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86287
--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---
Reduced C code is this:
typedef struct {
long a;
long b;
long c
} d;
typedef struct {
int dtype;
d dim[]
} e;
e f;
g;
h() {
for (; g; ++g)
f.dim[g].b = f.dim[g].c = f.dim[g].a = 1;
}
Command line is
$ /home/dcb/gcc/results/bin/gcc -c -O3 -w -B/home/dcb/gcc/working/./gcc/
-std=gnu11 bug448.c
==27410==ERROR: AddressSanitizer: heap-use-after-free on address 0x611000022094
at pc 0x000002920418 bp 0x7fff6e82be60 sp 0x7fff6e82be58
READ of size 4 at 0x611000022094 thread T0
#0 0x2920417 in vect_transform_loop_stmt
../../trunk/gcc/tree-vect-loop.c:83
32
#1 0x2963d8c in vect_transform_loop(_loop_vec_info*)
../../trunk/gcc/tree-ve
ct-loop.c:8567
