http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46051
Summary: [4.6 Regression] ICE: in extract_insn, at recog.c:2110
with -mavx -ftree-vectorize
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
Created attachment 22065
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22065
reduced testcase
Compiler output:
$ gcc -O2 -mavx -ftree-vectorize pr46051.c
pr46051.c: In function 'foo':
pr46051.c:15:1: error: unrecognizable insn:
(insn 41 40 42 3 (set (reg:V4DF 108)
(vec_concat:V4DF (vec_select:V2DF (reg:V4DF 109)
(parallel [
(const_int 0 [0])
(const_int 1 [0x1])
]))
(vec_select:V2DF (reg:V4DF 110)
(parallel [
(const_int 0 [0])
(const_int 1 [0x1])
])))) pr46051.c:13 -1
(nil))
pr46051.c:15:1: internal compiler error: in extract_insn, at recog.c:2110
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Tested versions:
r165540 - crash
r163636 - OK
