https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102853
Bug ID: 102853
Summary: [12 Regression] ICE in compute_distributive_range, at
tree-data-ref.c:593 since
r12-4398-g9b2ad21ab3ebc21a3408108327fa1a7cbedaf217
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: rguenth at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-linux-gnu
Target: ppc64-linux-gnu
The following ICEs:
$ ./xgcc -B. /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr33846.c
-O1 -ftree-vectorize -mmodulo -ftrapv
during GIMPLE pass: pcom
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr33846.c: In function
‘_mix_some_samples’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr33846.c:12:6: internal
compiler error: in compute_distributive_range, at tree-data-ref.c:593
12 | void _mix_some_samples (intptr_t buf, int *mix_buffer, int mix_size)
| ^~~~~~~~~~~~~~~~~
0x22f4a05 compute_distributive_range
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:593
0x22f551c split_constant_offset_1
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:794
0x22f5a26 split_constant_offset_1
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:895
0x22f61b0 split_constant_offset
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:1043
0x22f538f split_constant_offset_1
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:779
0x22f5a26 split_constant_offset_1
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:895
0x22f61b0 split_constant_offset
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:1043
0x22f6376 split_constant_offset(tree_node*, tree_node**, tree_node**)
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:1070
0x22f73b0 dr_analyze_indices
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:1381
0x22f7c1d create_data_ref(edge_def*, loop*, tree_node*, gimple*, bool, bool)
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:1500
0x2304459 find_data_references_in_stmt(loop*, gimple*, vec<data_reference*,
va_heap, vl_ptr>*)
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:5934
0x2304677 find_data_references_in_bb(loop*, basic_block_def*,
vec<data_reference*, va_heap, vl_ptr>*)
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:5986
0x2304749 find_data_references_in_loop(loop*, vec<data_reference*, va_heap,
vl_ptr>*)
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:6019
0x2304d89 compute_data_dependences_for_loop(loop*, bool, vec<loop*, va_heap,
vl_ptr>*, vec<data_reference*, va_heap, vl_ptr>*,
vec<data_dependence_relation*, va_heap, vl_ptr>*)
/home/marxin/Programming/gcc/gcc/tree-data-ref.c:6194
0x146a2dd pcom_worker::tree_predictive_commoning_loop(bool)
/home/marxin/Programming/gcc/gcc/tree-predcom.c:3320
0x146a87c tree_predictive_commoning(bool)
/home/marxin/Programming/gcc/gcc/tree-predcom.c:3428
0x146a938 run_tree_predictive_commoning
/home/marxin/Programming/gcc/gcc/tree-predcom.c:3460
0x146a9df execute
/home/marxin/Programming/gcc/gcc/tree-predcom.c:3505
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