tree-if-conv.c:tree_if_convert_stmt uses TREE_OPERAND (t, 1)
for t being GOTO_EXPR like so:
case GOTO_EXPR:
/* Unconditional goto */
add_to_predicate_list (bb_for_stmt (TREE_OPERAND (t, 1)), cond);
bsi_remove (bsi);
cond = NULL_TREE;
break;
GOTO_EXPR has only one operand, so TREE_OPERAND (t, 1) is wrong.
Also, nonlocal gotos are represented using __builtin_nonlocal_goto,
computed gotos are represented using GOTO_EXPR, and
all other gotos are represented implicitly.
I don't think the code there is designed to handle computed gotos,
but I could be wrong.
--
Summary: TREE_OPERAND (t, 1) is referenced for t being GOTO_EXPR
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kazu at cs dot umass dot edu
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18472
