https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107896
Bug ID: 107896
Summary: ICE in supportable_widening_operation, at
tree-vect-stmts.cc:12199 breaking arm bootstrap
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: acoplan at gcc dot gnu.org
Target Milestone: ---
The following fails (reduced from arm bootstrap):
$ cat t.cc
struct gcc_options {
int x_flag_tree_phiprop;
int x_flag_tree_pre;
int x_flag_tree_pta;
int x_flag_tree_reassoc;
int x_flag_tree_scev_cprop;
int x_flag_tree_sink;
int x_flag_tree_slp_vectorize;
int x_flag_web;
} cl_optimization_restore_opts;
signed char cl_optimization_restore_ptr_1, cl_optimization_restore_ptr_0;
void cl_optimization_restore() {
cl_optimization_restore_opts
.x_flag_tree_phiprop = cl_optimization_restore_opts.x_flag_tree_pre =
cl_optimization_restore_opts.x_flag_tree_pta =
cl_optimization_restore_opts.x_flag_tree_reassoc =
cl_optimization_restore_opts.x_flag_tree_scev_cprop =
cl_optimization_restore_opts.x_flag_tree_sink =
cl_optimization_restore_opts.x_flag_tree_slp_vectorize =
cl_optimization_restore_ptr_0;
cl_optimization_restore_opts.x_flag_web = cl_optimization_restore_ptr_1;
}
$ gcc/xgcc -B gcc -c t.cc -O2 -march=armv8-a+crypto
during GIMPLE pass: slp
t.cc: In function ‘void cl_optimization_restore()’:
t.cc:12:6: internal compiler error: in supportable_widening_operation, at
tree-vect-stmts.cc:12199
12 | void cl_optimization_restore() {
| ^~~~~~~~~~~~~~~~~~~~~~~
0x1dd0b13 supportable_widening_operation(vec_info*, tree_code, _stmt_vec_info*,
tree_node*, tree_node*, tree_code*, tree_code*, int*, vec<tree_node*, va_heap,
vl_ptr>*)
/home/alecop01/toolchain/src/gcc/gcc/tree-vect-stmts.cc:12199
0x1dd5ef5 vectorizable_conversion
/home/alecop01/toolchain/src/gcc/gcc/tree-vect-stmts.cc:5064
0x1df36c6 vect_analyze_stmt(vec_info*, _stmt_vec_info*, bool*, _slp_tree*,
_slp_instance*, vec<stmt_info_for_cost, va_heap, vl_ptr>*)
/home/alecop01/toolchain/src/gcc/gcc/tree-vect-stmts.cc:11256
0x13a164d vect_slp_analyze_node_operations_1
/home/alecop01/toolchain/src/gcc/gcc/tree-vect-slp.cc:5957
0x13a164d vect_slp_analyze_node_operations
/home/alecop01/toolchain/src/gcc/gcc/tree-vect-slp.cc:6147
0x13a1556 vect_slp_analyze_node_operations
/home/alecop01/toolchain/src/gcc/gcc/tree-vect-slp.cc:6126
0x13a3b37 vect_slp_analyze_operations(vec_info*)
/home/alecop01/toolchain/src/gcc/gcc/tree-vect-slp.cc:6387
0x13a8ce8 vect_slp_analyze_bb_1
/home/alecop01/toolchain/src/gcc/gcc/tree-vect-slp.cc:7372
0x13a8ce8 vect_slp_region
/home/alecop01/toolchain/src/gcc/gcc/tree-vect-slp.cc:7419
0x13a9b9d vect_slp_bbs
/home/alecop01/toolchain/src/gcc/gcc/tree-vect-slp.cc:7610
0x13aa1c1 vect_slp_function(function*)
/home/alecop01/toolchain/src/gcc/gcc/tree-vect-slp.cc:7698
0x13b3ec6 execute
/home/alecop01/toolchain/src/gcc/gcc/tree-vectorizer.cc:1532
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ gcc/xgcc -B gcc -v
Reading specs from gcc/specs
COLLECT_GCC=gcc/xgcc
COLLECT_LTO_WRAPPER=gcc/lto-wrapper
Target: arm-linux-gnueabihf
Configured with: /home/alecop01/toolchain/src/gcc/configure
--prefix=/data_sdb/toolchain/cc1s/arm-lin --enable-languages=c,c++
--disable-bootstrap --target=arm-linux-gnueabihf
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 13.0.0 20221128 (experimental) (GCC)
