https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91503
Bug ID: 91503
Summary: ICE ira-build.i:17:1: error: shared rtx
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: skpgkp2 at gmail dot com
CC: crazylht at gmail dot com, hjl.tools at gmail dot com
Target Milestone: ---
ICE when compile with gcc option "-O3 -mtune-ctrl=^inter_unit_moves_to_vec
-msse4.1"
$cat ira-build.i
typedef struct a *b;
struct a {
b c}
;
d
;
e( f, g) {
int h, i;
b j;
i = g + 1;
for (j = f; j ;
j = j->c)
h = e( 1);
if (h > i)
i = h;
return i;
}
static k() {
d = e();
}
l() {
k();
}
$gcc -S -O3 -mtune-ctrl="^inter_unit_moves_to_vec" ira-build.i -msse4.1 -w
ira-build.i: In function \u2018l\u2019:
ira-build.i:23:1: error: invalid rtl sharing found in the insn
23 | }
| ^
(insn 57 56 15 4 (set (subreg:V4SI (reg:SI 96) 0)
(vec_merge:V4SI (vec_duplicate:V4SI (mem/c:SI (plus:DI (reg/f:DI 19
frame)
(const_int -4 [0xfffffffffffffffc])) [0 S4 A32]))
(const_vector:V4SI [
(const_int 0 [0]) repeated x4
])
(const_int 1 [0x1]))) "ira-build.i":13:9 -1
(nil))
ira-build.i:23:1: error: shared rtx
(mem/c:SI (plus:DI (reg/f:DI 19 frame)
(const_int -4 [0xfffffffffffffffc])) [0 S4 A32])
during RTL pass: stv
ira-build.i:23:1: internal compiler error: internal consistency failure
0xa21114 verify_rtx_sharing
/local/gccwork/gcc_trunk/gcc/gcc/emit-rtl.c:2927
0xa20feb verify_rtx_sharing
/local/gccwork/gcc_trunk/gcc/gcc/emit-rtl.c:2942
0xa20feb verify_rtx_sharing
/local/gccwork/gcc_trunk/gcc/gcc/emit-rtl.c:2942
0xa20feb verify_rtx_sharing
/local/gccwork/gcc_trunk/gcc/gcc/emit-rtl.c:2942
0xa2143f verify_insn_sharing
/local/gccwork/gcc_trunk/gcc/gcc/emit-rtl.c:3013
0xa24d67 verify_rtl_sharing()
/local/gccwork/gcc_trunk/gcc/gcc/emit-rtl.c:3036
0xcb2ae9 execute_function_todo
/local/gccwork/gcc_trunk/gcc/gcc/passes.c:2004
0xcb382e execute_todo
/local/gccwork/gcc_trunk/gcc/gcc/passes.c:2037
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
