[EMAIL PROTECTED] ~ $ gcc -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.1/configure --prefix=/home/halcyon/gcc-test/bin-4.1/
--enable-languages=c,c++
Thread model: posix
gcc version 4.1.2 20060529 (prerelease)
gcc -c -ftree-vectorize -O1 -msse2 test.i
test.i: In function âbinarizeâ:
test.i:10: error: unrecognizable insn:
(insn 80 79 81 13 (set (reg:V16QI 84)
(us_minus:V16QI (mem:V16QI (plus:SI (reg:SI 62 [ D.1718 ])
(reg:SI 68 [ vect_p.39 ])) [0 S16 A128])
(reg:V16QI 82))) -1 (nil)
(nil))
test.i:10: internal compiler error: in extract_insn, at recog.c:2084
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
Reduced testcase:
void binarize ()
{
unsigned i, npixels;
unsigned char *b;
if (i == 1)
{
for (i = 0; i < npixels; i++)
b[i] = (b[i] > 225 ? 0xff : 0);
}
}
--
Summary: [4.1/4.2 Regression] Unrecognizable insn with -ftree-
vectorize -O1 -msse2
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: halcy0n at gentoo dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27790
