https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71476
Bug ID: 71476
Summary: ICE in gimplify_switch_expr with -Wswitch-unreachable
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: mpolacek at gcc dot gnu.org
Target Milestone: ---
void
foo (int a)
{
switch (a)
{
void f (void) { break; }
}
}
$ ./cc1 -quiet n.c
n.c: In function ‘f’:
n.c:6:23: error: break statement not within loop or switch
void f (void) { break; }
^~~~~
n.c: In function ‘foo’:
n.c:4:3: internal compiler error: Segmentation fault
switch (a)
^~~~~~
0xe453e0 crash_signal
/home/marek/src/gcc/gcc/toplev.c:335
0xb04d2d gimple_code
/home/marek/src/gcc/gcc/gimple.h:1674
0xb0a041 gimplify_switch_expr
/home/marek/src/gcc/gcc/gimplify.c:1609
0xb30019 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/marek/src/gcc/gcc/gimplify.c:10556
0xb19669 gimplify_stmt(tree_node**, gimple**)
/home/marek/src/gcc/gcc/gimplify.c:5731
0xb086d1 gimplify_bind_expr
/home/marek/src/gcc/gcc/gimplify.c:1154
0xb2ffd7 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/marek/src/gcc/gcc/gimplify.c:10548
0xb19669 gimplify_stmt(tree_node**, gimple**)
/home/marek/src/gcc/gcc/gimplify.c:5731
0xb335fc gimplify_body(tree_node*, bool)
/home/marek/src/gcc/gcc/gimplify.c:11532
0xb33e98 gimplify_function_tree(tree_node*)
/home/marek/src/gcc/gcc/gimplify.c:11688
0x939f0b cgraph_node::analyze()
/home/marek/src/gcc/gcc/cgraphunit.c:625
0x93b792 analyze_functions
/home/marek/src/gcc/gcc/cgraphunit.c:1086
0x93fdb8 symbol_table::finalize_compilation_unit()
/home/marek/src/gcc/gcc/cgraphunit.c:2543
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
