https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87782
Bug ID: 87782
Summary: runtime error: load of value 1818451807, which is not
a valid value for type 'expr_t'[9 Regression]
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
Blocks: 63426
Target Milestone: ---
It's a recent regression I believe. Using ubsan compiler one can see:
$ UBSAN_OPTIONS=print_stacktrace=1 gcc
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/testsuite/gfortran.dg/deferred_character_23.f90
../../gcc/fortran/frontend-passes.c:660:46: runtime error: load of value
1818451807, which is not a valid value for type 'expr_t'
#0 0xf0a979 in constant_string_length
../../gcc/fortran/frontend-passes.c:660
#1 0xf0c907 in create_var ../../gcc/fortran/frontend-passes.c:823
#2 0xf07b5c in realloc_string_callback
../../gcc/fortran/frontend-passes.c:299
#3 0xf32069 in gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*,
void*), int (*)(gfc_expr**, int*, void*), void*)
../../gcc/fortran/frontend-passes.c:5073
#4 0xf149e2 in realloc_strings ../../gcc/fortran/frontend-passes.c:1517
#5 0xf14b4c in realloc_strings ../../gcc/fortran/frontend-passes.c:1522
#6 0xf0709f in gfc_run_passes(gfc_namespace*)
../../gcc/fortran/frontend-passes.c:179
#7 0xbb8898 in gfc_resolve(gfc_namespace*)
../../gcc/fortran/resolve.c:16736
#8 0xae429f in gfc_parse_file() ../../gcc/fortran/parse.c:6266
#9 0xc59435 in gfc_be_parse_file ../../gcc/fortran/f95-lang.c:204
#10 0x2444c25 in compile_file ../../gcc/toplev.c:455
#11 0x244da89 in do_compile ../../gcc/toplev.c:2172
#12 0x244e1cf in toplev::main(int, char**) ../../gcc/toplev.c:2307
#13 0x4971b0e in main ../../gcc/main.c:39
#14 0x7ffff608cfea in __libc_start_main ../csu/libc-start.c:308
#15 0x8669a9 in _start
(/home/marxin/bin/gcc2/lib/gcc/x86_64-pc-linux-gnu/9.0.0/f951+0x8669a9)
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426
[Bug 63426] [meta-bug] Issues found with -fsanitize=undefined
