https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99656
Bug ID: 99656
Summary: ICE in linear_loads_p
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: aarch64-linux-gnu
gfortran-11.0.1-alpha2021031 snapshot
(g:c2d7c39fcb8a3cb67600cdb6fde49ecb0e951589) ICEs when compiling the following
testcase w/ -march=armv8.3-a -O1 -ftree-slp-vectorize -fwrapv:
SUBROUTINE ZLAHQR2(H, LDH, H22, T1)
INTEGER LDH
COMPLEX*16 H(LDH, *)
INTEGER NR
COMPLEX*16 H22, SUM, T1, V2
COMPLEX*16 V( 3 )
EXTERNAL ZLARFG
INTRINSIC DCONJG
V2 = H22
CALL ZLARFG(T1)
SUM = DCONJG(T1) * H(1, 1)
H(1, 1) = SUM * V2
RETURN
END
% aarch64-linux-gnu-gfortran-11.0.1 -march=armv8.3-a -O1 -ftree-slp-vectorize
-fwrapv -c dimduxtl.f
during GIMPLE pass: slp
dimduxtl.f:1:24:
1 | SUBROUTINE ZLAHQR2(H, LDH, H22, T1)
| ^
internal compiler error: Segmentation fault
0xf06aaf crash_signal
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/toplev.c:327
0x11d04e3 vec<unsigned int, va_heap, vl_embed>::operator[](unsigned int)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/vec.h:890
0x11d04e3 vec<unsigned int, va_heap, vl_ptr>::operator[](unsigned int)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/vec.h:1461
0x11d04e3 linear_loads_p
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp-patterns.c:258
0x11d03c6 linear_loads_p
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp-patterns.c:242
0x11d143c complex_mul_pattern::matches(_complex_operation, hash_map<_slp_tree*,
std::pair<_complex_perm_kinds, vec<unsigned int, va_heap, vl_ptr> >,
simple_hashmap_traits<default_hash_traits<_slp_tree*>,
std::pair<_complex_perm_kinds, vec<unsigned int, va_heap, vl_ptr> > > >*,
_slp_tree**, vec<_slp_tree*, va_heap, vl_ptr>*)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp-patterns.c:1006
0x11d1bb0 complex_mul_pattern::matches(_complex_operation, hash_map<_slp_tree*,
std::pair<_complex_perm_kinds, vec<unsigned int, va_heap, vl_ptr> >,
simple_hashmap_traits<default_hash_traits<_slp_tree*>,
std::pair<_complex_perm_kinds, vec<unsigned int, va_heap, vl_ptr> > > >*,
_slp_tree**, vec<_slp_tree*, va_heap, vl_ptr>*)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp-patterns.c:991
0x11d1bb0 complex_operations_pattern::recognize(hash_map<_slp_tree*,
std::pair<_complex_perm_kinds, vec<unsigned int, va_heap, vl_ptr> >,
simple_hashmap_traits<default_hash_traits<_slp_tree*>,
std::pair<_complex_perm_kinds, vec<unsigned int, va_heap, vl_ptr> > > >*,
_slp_tree**)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp-patterns.c:1491
0x11c235c vect_match_slp_patterns_2
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp.c:2427
0x11c2330 vect_match_slp_patterns_2
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp.c:2422
0x11c63cf vect_match_slp_patterns
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp.c:2458
0x11c63cf vect_analyze_slp(vec_info*, unsigned int)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp.c:2901
0x11ca92c vect_slp_analyze_bb_1
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp.c:4820
0x11ca92c vect_slp_region
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp.c:4932
0x11ca92c vect_slp_bbs
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp.c:5082
0x11cc74c vect_slp_function(function*)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vect-slp.c:5168
0x11d2a02 execute
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210314/work/gcc-11-20210314/gcc/tree-vectorizer.c:1450
