https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79297
Bug ID: 79297
Summary: [7 Regression] ICE (segfault) in main_block_label
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: doko at gcc dot gnu.org
Target Milestone: ---
seen with trunk 20170129
$ cat share.ii
struct a {
a() {
goto b;
if (0)
b:;
}
} c;
(exp)doko@gb:/scratch/packages/tmp/yosys-0.7$ g++ -std=c++11 -c share.ii
share.ii: In constructor 'a::a()':
share.ii:2:3: internal compiler error: Segmentation fault
a() {
^
0xb1317f crash_signal
../../src/gcc/toplev.c:333
0xb3c743 main_block_label
../../src/gcc/tree-cfg.c:1381
0xb3cc3d cleanup_dead_labels()
../../src/gcc/tree-cfg.c:1564
0xb477f1 build_gimple_cfg
../../src/gcc/tree-cfg.c:238
0xb477f1 execute_build_cfg
../../src/gcc/tree-cfg.c:397
0xb477f1 execute
../../src/gcc/tree-cfg.c:433
Please submit a full bug report,
with preprocessed source if appropriate.
