https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117773
Bug ID: 117773
Summary: ICE in gimplify_var_or_parm_decl, co_yleld
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: sberg.fun at gmail dot com
Target Milestone: ---
At least with recent GCC 15 trunk,
> $ cat test.cc
> #include <coroutine>
> #include <initializer_list>
> struct S {
> struct promise_type {
> S get_return_object();
> std::suspend_always initial_suspend();
> std::suspend_always final_suspend() noexcept;
> std::suspend_always yield_value(int);
> void unhandled_exception();
> };
> S(std::coroutine_handle<promise_type>);
> };
> S f() {
> for (int x: {0}) {
> int y;
> co_yield y;
> }
> }
> $ g++ -std=c++23 -c test.cc
> test.cc: In function ‘void f(_Z1fv.Frame*)’:
> test.cc:16:18: internal compiler error: in gimplify_var_or_parm_decl, at
> gimplify.cc:3315
> 16 | co_yield y;
> | ^
> 0x25abe5e internal_error(char const*, ...)
> ../../src/gcc/diagnostic-global-context.cc:517
> 0x709b9b fancy_abort(char const*, int, char const*)
> ../../src/gcc/diagnostic.cc:1696
> 0x546bb8 gimplify_var_or_parm_decl
> ../../src/gcc/gimplify.cc:3315
> 0xd26107 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
> int)
> ../../src/gcc/gimplify.cc:19123
> 0xd3a084 gimplify_expr
> ../../src/gcc/gimplify.cc:19747
> 0xd3a084 gimplify_arg(tree_node**, gimple**, unsigned int, bool)
> ../../src/gcc/gimplify.cc:3801
> 0xd3a4aa gimplify_call_expr
> ../../src/gcc/gimplify.cc:4212
> 0xd268cc gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
> int)
> ../../src/gcc/gimplify.cc:18625
> 0xd2ebcc gimplify_stmt(tree_node**, gimple**)
> ../../src/gcc/gimplify.cc:7839
> 0xd2ebcc gimplify_and_add(tree_node*, gimple**)
> ../../src/gcc/gimplify.cc:518
> 0x79d653 cp_gimplify_expr(tree_node**, gimple**, gimple**)
> ../../src/gcc/cp/cp-gimplify.cc:692
> 0xd255ad gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
> int)
> ../../src/gcc/gimplify.cc:18562
> 0xd30dcc gimplify_cleanup_point_expr
> ../../src/gcc/gimplify.cc:7839
> 0xd268ab gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
> int)
> ../../src/gcc/gimplify.cc:19055
> 0xd286a4 gimplify_stmt(tree_node**, gimple**)
> ../../src/gcc/gimplify.cc:7839
> 0xd2702b gimplify_statement_list
> ../../src/gcc/gimplify.cc:2256
> 0xd2702b gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
> int)
> ../../src/gcc/gimplify.cc:19107
> 0xd286a4 gimplify_stmt(tree_node**, gimple**)
> ../../src/gcc/gimplify.cc:7839
> 0xd297fe gimplify_bind_expr
> ../../src/gcc/gimplify.cc:1651
> 0xd268dc gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
> int)
> ../../src/gcc/gimplify.cc:18857
