This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug middle-end/32912] [4.3 Regression] ICE with vector code
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 28 Jul 2007 01:15:25 -0000
- Subject: [Bug middle-end/32912] [4.3 Regression] ICE with vector code
- References: <bug-32912-14600@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from pinskia at gcc dot gnu dot org 2007-07-28 01:15 -------
fold-const.c is causing it at:
10277 /* ~X ^ X is -1. */
The issue is that we don't fold ~vector_cst at all.
Anyways here is a reduced testcase:
typedef int __m128i __attribute__ ((__vector_size__ (16) ));
typedef __m128i v2d;
v2d rval();
v2d g;
struct A {
v2d a;
v2d b;
};
struct B {
A a;
};
void foo(B);
void bar() {
v2d l;
A a={};
a.a ^= ~a.b;
a.a ^= ~(v2d) {0,0};
B c = {a};
foo(c);
}
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Component|tree-optimization |middle-end
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2007-07-28 01:15:25
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32912