This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/18944] [4.0 Regression] SSE ordered/unordered compare are either omitted or provoke an ICE, -ffast-math implied
- 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: 12 Dec 2004 17:50:11 -0000
- Subject: [Bug target/18944] [4.0 Regression] SSE ordered/unordered compare are either omitted or provoke an ICE, -ffast-math implied
- References: <20041212172738.18944.tbptbp@gmail.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-12 17:50 -------
Reduced testcase:
typedef float __v4sf __attribute__ ((vector_size (16)));
int ffg (__v4sf __A);
int main()
{
float f = 1.f/0.f;
__v4sf __tmp = __builtin_ia32_loadss (&f);
__v4sf a = __builtin_ia32_shufps(__tmp, __tmp, 0),
comp = (__v4sf)__builtin_ia32_cmpunordps(a,a);
return ffg(comp);
}
: Search converges between 2004-01-01-trunk (#437) and 2004-01-17-trunk (#438).
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Component|c++ |target
Ever Confirmed| |1
Keywords| |ice-on-valid-code
Last reconfirmed|0000-00-00 00:00:00 |2004-12-12 17:50:10
date| |
Summary|SSE ordered/unordered |[4.0 Regression] SSE
|compare are either omitted |ordered/unordered compare
|or provoke an ICE, -ffast- |are either omitted or
|math implied |provoke an ICE, -ffast-math
| |implied
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18944