https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113089
Bug ID: 113089
Summary: [14 Regression][aarch64] ICE in
process_uses_of_deleted_def, at rtl-ssa/changes.cc:252
since r14-6605-gc0911c6b357ba9
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: hliu at amperecomputing dot com
Target Milestone: ---
SPEC2017 525.x264 build failure. Options are: -O3 -mcpu=neoverse-n1
-funroll-loops -flto=32 --param early-inlining-insns=96 --param
max-inline-insns-auto=64 --param inline-unit-growth=96
The failure happens while doing LTO optimization:
gcc -std=c99 ... -o ldecod_r
during RTL pass: ldp_fusion
ldecod_src/intra_chroma_pred.c: In function 'intrapred_chroma':
ldecod_src/intra_chroma_pred.c:420:1: internal compiler error: in
process_uses_of_deleted_def, at rtl-ssa/changes.cc:252
420 | }
| ^
0x1ccbbab
rtl_ssa::function_info::process_uses_of_deleted_def(rtl_ssa::set_info*)
../../gcc/gcc/rtl-ssa/changes.cc:252
0x1cce34f
rtl_ssa::function_info::change_insns(array_slice<rtl_ssa::insn_change*>)
../../gcc/gcc/rtl-ssa/changes.cc:799
0x1371843 ldp_bb_info::fuse_pair(bool, unsigned int, int, rtl_ssa::insn_info*,
rtl_ssa::insn_info*, base_cand&, rtl_ssa::insn_range_info const&)
../../gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:1520
0x1374663 ldp_bb_info::try_fuse_pair(bool, unsigned int, rtl_ssa::insn_info*,
rtl_ssa::insn_info*)
../../gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2217
0x1374a8f ldp_bb_info::merge_pairs(std::__cxx11::list<rtl_ssa::insn_info*,
std::allocator<rtl_ssa::insn_info*> >&, std::__cxx11::list<rtl_ssa::insn_info*,
std::allocator<rtl_ssa::insn_info*> >&, bool, unsigned int)
../../gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2306
0x1377bfb ldp_bb_info::transform_for_base(int, access_group&)
../../gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2339
0x1377bfb void
ldp_bb_info::traverse_base_map<ordered_hash_map<pair_hash<nofree_ptr_hash<rtl_ssa::def_info>,
int_hash<int, -1, -2> >, access_group,
simple_hashmap_traits<default_hash_traits<pair_hash<nofree_ptr_hash<rtl_ssa::def_info>,
int_hash<int, -1, -2> > >, access_group> >
>(ordered_hash_map<pair_hash<nofree_ptr_hash<rtl_ssa::def_info>, int_hash<int,
-1, -2> >, access_group,
simple_hashmap_traits<default_hash_traits<pair_hash<nofree_ptr_hash<rtl_ssa::def_info>,
int_hash<int, -1, -2> > >, access_group> >&)
../../gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2398
0x136e29b ldp_bb_info::transform()
../../gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2406
0x136e29b ldp_fusion_bb(rtl_ssa::bb_info*)
../../gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2634
0x136ee93 ldp_fusion()
../../gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2643
0x136eefb execute
../../gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2693
