https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
Bug ID: 112320
Summary: crash from insert_debug_temp_for_var_def
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
This C code:
unsigned void0_effective_addr2;
void0_i, void0_m, void0_p2;
void0() {
void0_m = 800 - (void0_effective_addr2 & 5);
int b1;
void0_i = 0;
for (; void0_i < void0_m; void0_i++)
b1++;
void0_p2 = b1++;
}
when compiled by recent gcc trunk, does this:
$ ~/gcc/results/bin/gcc -c -w -g -O1 bug972.c
during GIMPLE pass: dse
bug972.c: In function ‘void0’:
bug972.c:3:1: internal compiler error: Segmentation fault
3 | void0() {
| ^~~~~
0xebbce9 crash_signal(int)
../../trunk.year/gcc/toplev.cc:315
0xaa2308 gsi_for_stmt(gimple*)
../../trunk.year/gcc/gimple-iterator.cc:0
0x11364ea insert_debug_temp_for_var_def(gimple_stmt_iterator*, tree_node*)
../../trunk.year/gcc/tree-ssa.cc:471
The bug first seems to occur sometime between g:8c40b72036c967fb
and g:9119b008b4195e06, which is 35 commits.
