https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102462
--- Comment #10 from CVS Commits ---
The master branch has been updated by hongtao Liu :
https://gcc.gnu.org/g:3c8d8c0be95e99dc0cba7f6fad2429243582119f
commit r12-4523-g3c8d8c0be95e99dc0cba7f6fad2429243582119f
Author: liuhongt
Date: Thu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102462
--- Comment #9 from Hongtao.liu ---
case 1: All accesses are out of bound, and after vectorization, there are
some warnings missing.(Because there only 1 access after vectorization, 2
accesses w/o vectorization, and diagnostic is based on
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102462
--- Comment #8 from Hongtao.liu ---
I got a case3 from Wstringop-overflow-76.c
#define MAX(p, q) ((p) > (q) ? (p) : (q))
struct B4_B6
{
char b4[4];
char b6[6]; // { dg-message "at offset 6 into destination object 'b6'
of size 6"
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102462
Martin Sebor changed:
What|Removed |Added
Last reconfirmed||2021-09-23
Ever confirmed|0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102462
--- Comment #6 from Hongtao.liu ---
Move pass_strlen before loop passes
@@ -261,6 +261,7 @@ along with GCC; see the file COPYING3. If not see
NEXT_PASS (pass_tsan);
NEXT_PASS (pass_dse);
NEXT_PASS (pass_dce);
+
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102462
--- Comment #5 from Hongtao.liu ---
It looks like vectorized stmt is always marked as the first access lineno.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102462
--- Comment #4 from Hongtao.liu ---
case1
struct A1
{
char n;
char a[1];// { dg-message "destination object" "note" }
};
struct A1 a1__ = { 0 };
void ga1__ (void)
{
a1__.a[0] = 0;
a1__.a[1] = 1; //
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102462
--- Comment #3 from Hongtao.liu ---
case3:
struct A1
{
char n;
char a[1];// { dg-message "destination object" "note" }
};
void sink (void*);
struct A1 a1i_1 = { 0, { 1 } };
void ga1i_1 (void)
{
a1i_1.a[0] = 0;
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102462
Richard Biener changed:
What|Removed |Added
CC||rguenth at gcc dot gnu.org
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102462
--- Comment #1 from Hongtao.liu ---
The issue also exists for O3
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