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[Bug target/15718] [3.3 regression][alpha] ICE in subreg_hard_regno, at emit-rtl.c:928
- 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: 29 May 2004 01:31:19 -0000
- Subject: [Bug target/15718] [3.3 regression][alpha] ICE in subreg_hard_regno, at emit-rtl.c:928
- References: <20040528234440.15718.jbuck@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-05-29 01:31 -------
Confirmed. The rtx which is ICEing:
(subreg:DF (reg:SC 48 $f16) 0)
Note the failure for FAIL: gcc.c-torture/execute/complex-6.c compilation, -Os is the same.
Here is the reduced source for that testcase:
int err;
__complex__ float ctest_float (__complex__ float x)
{
__complex__ float res;
res = ~x;
return res;
}
void test_float (void)
{
__complex__ float res, x;
x = 1.0 + 2.0i;
res = ctest_float (x);
if (res != 1.0 - 2.0i)
++err;
}
I think is a bug in the alpha backend as it does not check for the complex modes.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |rth at gcc dot gnu dot org
Status|UNCONFIRMED |NEW
Component|rtl-optimization |target
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-05-29 01:31:18
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15718