I get the following segfault with gcc 4.3 20070326 and 20070417. It works
with gcc 4.2:
Analyzing compilation unit
Performing interprocedural optimizations
<visibility> <early_local_cleanups> <inline> <static-var> <pure-const>
<type-escape-var>
Program received signal SIGSEGV, Segmentation fault.
integer_zerop (expr=0x0) at /home/tbm/scratch/gcc/gcc/tree.c:1295
1295 STRIP_NOPS (expr);
(gdb) where
#0 integer_zerop (expr=0x0) at /home/tbm/scratch/gcc/gcc/tree.c:1295
#1 0x0000000000923316 in okay_pointer_operation (code=IDENTIFIER_NODE,
op0=0x2b94c001cd20,
op1=0x2b94bfcbeba0) at /home/tbm/scratch/gcc/gcc/ipa-type-escape.c:1471
#2 0x00000000009252fb in scan_for_refs (tp=<value optimized out>,
walk_subtrees=0x7fffeb506cfc,
data=<value optimized out>) at
/home/tbm/scratch/gcc/gcc/ipa-type-escape.c:1544
#3 0x00000000008ca35b in walk_tree (tp=0x2b94bfffbd70, func=0x924f20
<scan_for_refs>,
data=0x2b94bfeade00, pset=0xee27e0) at
/home/tbm/scratch/gcc/gcc/tree.c:7978
#4 0x0000000000921bb8 in type_escape_execute () at
/home/tbm/scratch/gcc/gcc/ipa-type-escape.c:1707
#5 0x000000000070b5d1 in execute_one_pass (pass=0xdff8c0) at
/home/tbm/scratch/gcc/gcc/passes.c:1058
#6 0x000000000070b7e5 in execute_ipa_pass_list (pass=0xdff8c0)
at /home/tbm/scratch/gcc/gcc/passes.c:1126
--
Summary: [4.3 Regression] Segfault in integer_zerop, called via
ipa-type-escape.c
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tbm at cyrius dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31617
