https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97897
Bug ID: 97897
Summary: ICE tree check: expected ssa_name, have integer_cst in
compute_optimized_partition_bases, at
tree-ssa-coalesce.c:1638
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: [email protected]
Target Milestone: ---
Affects versions down to at least r5 :
(compiles with "(_Complex a)" instead)
$ cat z1.c
void h ();
void f () __attribute__ ((returns_twice));
void g (_Complex int a)
{
f ();
if (a != 0)
{
a = 0;
h ();
}
}
$ gcc-11-20201115 -c z1.c
during RTL pass: expand
z1.c: In function 'g':
z1.c:3:6: internal compiler error: tree check: expected ssa_name, have
integer_cst in compute_optimized_partition_bases, at tree-ssa-coalesce.c:1638
3 | void g (_Complex int a)
| ^
0x626df8 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/tree.c:9779
0xe4bb1f tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/tree.h:3314
0xe4bb1f compute_optimized_partition_bases
../../gcc/tree-ssa-coalesce.c:1638
0xe4bb1f coalesce_ssa_name(_var_map*)
../../gcc/tree-ssa-coalesce.c:1718
0xdde89b remove_ssa_form
../../gcc/tree-outof-ssa.c:1065
0xdde89b rewrite_out_of_ssa(ssaexpand*)
../../gcc/tree-outof-ssa.c:1323
0x80fa70 execute
../../gcc/cfgexpand.c:6407
