https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69171
Bug ID: 69171
Summary: error: unrecognizable insn: on x86_64 with -O2
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Created attachment 37242
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37242&action=edit
gzipped C source code
The attached code, when compiled by gcc trunk dated 20160106, revision 232102,
says this:
$ ../results/bin/gcc -c -O2 bug261.c
./argus_util.c: In function ‘ArgusPrintSum’:
./argus_util.c:5856:1: error: unrecognizable insn:
(insn 213 212 36 6 (set (reg:V4SF 21 xmm0 [122])
(vec_merge:V4SF (vec_duplicate:V4SF (float:SF (mem:SI (plus:DI
(reg/v/f:DI 0 ax [orig:90 agr ] [90])
(const_int 24 [0x18])) [2 agr_11->act.n+0 S4
A16])))
(reg:V4SF 21 xmm0 [122])
(const_int 1 [0x1]))) ./argus_util.c:5830 -1
(nil))
./argus_util.c:5856:1: internal compiler error: in extract_insn, at
recog.c:2286
0xa8c259 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../src/trunk/gcc/rtl-error.c:108
0xa8c27e _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../src/trunk/gcc/rtl-error.c:116
0xa503da extract_insn(rtx_insn*)
../../src/trunk/gcc/recog.c:2277
0xa549ca extract_insn_cached(rtx_insn*)
../../src/trunk/gcc/recog.c:2177
