https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109759
Bug ID: 109759
Summary: UBSAN error: shift exponent 64 is too large for 64-bit
type 'long unsigned int'
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: jamborm at gcc dot gnu.org
CC: aldyh at gcc dot gnu.org, marxin at gcc dot gnu.org
Target Milestone: ---
Bootstrap with undefined behavior sanitizer and subsequent run of the
testsuite (on revision b7fe38c14e5) reports a new error when compiling
Fortran testcase assumed_charlen_function_2.f90:
spawn -ignore SIGHUP
/home/worker/buildworker/tiber-gcc-ubsan/objdir/gcc/testsuite/gfortran/../../gfortran
-B/home/worker/buildworker/tiber-gcc-ubsan/objdir/gcc/testsuite/gfortran/../../
-B/home/worker/buildworker/tiber-gcc-ubsan/objdir/x86_64-pc-linux-gnu/./libgfortran/
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/testsuite/gfortran.dg/assumed_charlen_function_2.f90
-fdiagnostics-plain-output -fdiagnostics-plain-output -O -pedantic-errors -S -o
assumed_charlen_function_2.s
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/hwint.h:293:61: runtime
error: shift exponent 64 is too large for 64-bit type 'long unsigned int'
#0 0x11d0a1b in sext_hwi(long, unsigned int)
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/hwint.h:293
#1 0x11d0a1b in wi::hwi_with_prec::hwi_with_prec(long, unsigned int,
signop) /home/worker/buildworker/tiber-gcc-ubsan/build/gcc/wide-int.h:1622
#2 0x11d0a1b in wi::shwi(long, unsigned int)
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/wide-int.h:1631
#3 0x11d0a1b in wi::minus_one(unsigned int)
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/wide-int.h:1645
#4 0x11d0a1b in irange::set_varying(tree_node*)
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/value-range.h:833
#5 0x25d2b37 in range_cast(vrange&, tree_node*)
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/range-op.cc:4860
#6 0x1e87976 in ipa_compute_jump_functions_for_edge
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/ipa-prop.cc:2325
#7 0x1e8af36 in ipa_compute_jump_functions_for_bb
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/ipa-prop.cc:2449
#8 0x1e8af36 in analysis_dom_walker::before_dom_children(basic_block_def*)
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/ipa-prop.cc:3035
#9 0x69a8253 in dom_walker::walk(basic_block_def*)
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/domwalk.cc:311
#10 0x1e845e1 in ipa_analyze_node(cgraph_node*)
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/ipa-prop.cc:3103
#11 0x1d07117 in inline_indirect_intraprocedural_analysis
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/ipa-fnsummary.cc:4315
#12 0x1d07117 in inline_analyze_function(cgraph_node*)
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/ipa-fnsummary.cc:4334
#13 0x1d0779c in ipa_fn_summary_generate
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/ipa-fnsummary.cc:4378
#14 0x24af751 in execute_ipa_summary_passes(ipa_opt_pass_d*)
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/passes.cc:2304
#15 0x14110b3 in ipa_passes
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/cgraphunit.cc:2235
#16 0x14110b3 in symbol_table::compile()
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/cgraphunit.cc:2331
#17 0x14110b3 in symbol_table::compile()
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/cgraphunit.cc:2309
#18 0x141368a in symbol_table::finalize_compilation_unit()
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/cgraphunit.cc:2583
#19 0x2a3e691 in compile_file
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/toplev.cc:471
#20 0xa565be in do_compile
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/toplev.cc:2126
#21 0xa565be in toplev::main(int, char**)
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/toplev.cc:2278
#22 0xa59971 in main
/home/worker/buildworker/tiber-gcc-ubsan/build/gcc/main.cc:39
#23 0x7f6e44272baf in __libc_start_call_main (/lib64/libc.so.6+0x27baf)
(BuildId: 9854a3cd243b5cfbf99999e26f7fbb65e62146c7)
#24 0x7f6e44272c78 in __libc_start_main_alias_1 (/lib64/libc.so.6+0x27c78)
(BuildId: 9854a3cd243b5cfbf99999e26f7fbb65e62146c7)
#25 0xa59da4 in _start ../sysdeps/x86_64/start.S:115
