http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48352
Summary: [4.7 Regression] segfault in fortran/frontend-passes.c
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: joost.vandevond...@pci.uzh.ch
The following testcase started failing a couple of days ago:
MODULE cp_dbcsr_types
TYPE cp_dbcsr_p_type
END TYPE cp_dbcsr_p_type
CONTAINS
SUBROUTINE ep_qs_set(ep_qs_env, dH_coeffs_ptr, dS_coeffs_ptr, error)
TYPE(cp_dbcsr_p_type), DIMENSION(:), &
OPTIONAL, POINTER :: dH_coeffs_ptr, dS_coeffs_ptr
DO i=1,MIN(SIZE(dS_coeffs_ptr),SIZE(dS_coeffs_ptr))
END DO
END SUBROUTINE ep_qs_set
END MODULE
with the following segfault. Needs gfortran -O1.
Program received signal SIGSEGV, Segmentation fault.
gfc_expr_walker (e=0x18, exprfn=0x5bd5b0 <cfe_expr_0>, data=0x0) at
../../gcc/gcc/fortran/frontend-passes.c:741
741 while (*e)
(gdb) bt
#0 gfc_expr_walker (e=0x18, exprfn=0x5bd5b0 <cfe_expr_0>, data=0x0) at
../../gcc/gcc/fortran/frontend-passes.c:741
#1 0x00000000005bdabc in gfc_code_walker (c=0x15082d0, codefn=0x5bc9a0
<cfe_code>, exprfn=0x5bd5b0 <cfe_expr_0>, data=0x0)
at ../../gcc/gcc/fortran/frontend-passes.c:1039
#2 0x00000000005be73b in optimize_namespace (ns=0x1507ba0) at
../../gcc/gcc/fortran/frontend-passes.c:338
#3 0x00000000005be768 in optimize_namespace (ns=0x1507ba0) at
../../gcc/gcc/fortran/frontend-passes.c:342
#4 0x00000000005be7b3 in gfc_run_passes (ns=0x1503d40) at
../../gcc/gcc/fortran/frontend-passes.c:69
#5 0x000000000052aee8 in gfc_parse_file () at
../../gcc/gcc/fortran/parse.c:4368
#6 0x0000000000564616 in gfc_be_parse_file () at
../../gcc/gcc/fortran/f95-lang.c:250
#7 0x000000000086fa5c in compile_file (argc=15, argv=0x7fffffffdc88) at
../../gcc/gcc/toplev.c:579
#8 do_compile (argc=15, argv=0x7fffffffdc88) at ../../gcc/gcc/toplev.c:1900
#9 toplev_main (argc=15, argv=0x7fffffffdc88) at ../../gcc/gcc/toplev.c:1963
#10 0x00007ffff661cb7d in __libc_start_main () from /lib64/libc.so.6
#11 0x00000000004c4e49 in _start () at ../sysdeps/x86_64/elf/start.S:113
