https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98270
Bug ID: 98270
Summary: [11 Regression] UBSAN: /gcc/tree-vect-slp.c:2396:16:
runtime error: load of value 112, which is not a valid
value for type 'bool' since
r11-5928-gfc7b4248172561a9ee310e2d43d8a485a5c9e108
Product: gcc
Version: 11.0
Status: UNCONFIRMED
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: ---
Since the revision I see for UBSAN enabled compiler:
$ ./gcc/xgcc -B gcc
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/testsuite/gcc.dg/torture/pr98235.c
-O3 -c -fallow-store-data-races
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2396:16: runtime error: load
of value 112, which is not a valid value for type 'bool'
#0 0x2e53ba8 in vect_build_slp_instance
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2396
#1 0x2e55120 in vect_analyze_slp_instance
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2565
#2 0x2e553ce in vect_analyze_slp(vec_info*, unsigned int)
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2596
#3 0x2e649ce in vect_slp_analyze_bb_1
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:4409
#4 0x2e6572a in vect_slp_region
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:4521
#5 0x2e67593 in vect_slp_bbs
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:4669
#6 0x2e67f29 in vect_slp_function(function*)
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:4755
#7 0x2ea0219 in execute
/home/marxin/Programming/gcc/gcc/tree-vectorizer.c:1436
#8 0x1fe199b in execute_one_pass(opt_pass*)
/home/marxin/Programming/gcc/gcc/passes.c:2567
#9 0x1fe2323 in execute_pass_list_1
/home/marxin/Programming/gcc/gcc/passes.c:2656
#10 0x1fe23d8 in execute_pass_list_1
/home/marxin/Programming/gcc/gcc/passes.c:2657
#11 0x1fe23d8 in execute_pass_list_1
/home/marxin/Programming/gcc/gcc/passes.c:2657
#12 0x1fe2476 in execute_pass_list(function*, opt_pass*)
/home/marxin/Programming/gcc/gcc/passes.c:2667
#13 0x10bc8c5 in cgraph_node::expand()
/home/marxin/Programming/gcc/gcc/cgraphunit.c:1829
#14 0x10be21d in expand_all_functions
/home/marxin/Programming/gcc/gcc/cgraphunit.c:1997
#15 0x10c0342 in symbol_table::compile()
/home/marxin/Programming/gcc/gcc/cgraphunit.c:2361
#16 0x10c0cce in symbol_table::finalize_compilation_unit()
/home/marxin/Programming/gcc/gcc/cgraphunit.c:2542
#17 0x24682ca in compile_file /home/marxin/Programming/gcc/gcc/toplev.c:482
#18 0x2470b0d in do_compile /home/marxin/Programming/gcc/gcc/toplev.c:2193
#19 0x2471110 in toplev::main(int, char**)
/home/marxin/Programming/gcc/gcc/toplev.c:2332
#20 0x508734c in main /home/marxin/Programming/gcc/gcc/main.c:39
#21 0x7ffff6d2a151 in __libc_start_main (/lib64/libc.so.6+0x28151)
#22 0x9e49fd in _start
(/home/marxin/Programming/gcc/objdir/gcc/cc1+0x9e49fd)
