https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84304
Bug ID: 84304
Summary: tree check fail in to_wide, at tree.h:5527
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
For this C source code:
a, b;
c() {
char d[b];
char *e = &d[0];
strncpy(a, e, 3);
}
with flag -O2, recent gcc trunk does this:
bug417.c:2:1: internal compiler error: tree check: expected integer_cst, have
pl
us_expr in to_wide, at tree.h:5527
c() {
^
0x59606c tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../trunk/gcc/tree.c:9325
0x6f9a88 tree_check(tree_node const*, char const*, int, char const*, tree_code)
../../trunk/gcc/tree.h:3388
0x6f9a88 wi::to_wide(tree_node const*)
../../trunk/gcc/tree.h:5527
0x6f9a88 wi::to_wide(tree_node const*, unsigned int)
../../trunk/gcc/tree.h:5538
I'll have a go at finding a range of revisions for the bug.
