https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102454
Bug ID: 102454
Summary: [12 Regression] ICE in gimplify_var_or_parm_decl, at
gimplify.c:2958
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
g++-12.0.0-alpha20210919 snapshot (g:32731fa5b0abf092029b8e2be64319b978bda514)
ICEs when compiling the following testcase, reduced from
gcc/testsuite/g++.dg/coroutines/torture/co-yield-04-complex-local-state.C, w/
-fcoroutines -fno-exceptions:
#include <coroutine>
#include <string>
template <typename T>
struct looper {
struct promise_type {
auto get_return_object () { return handle_type::from_promise (*this); }
auto initial_suspend () { return suspend_always_prt {}; }
auto final_suspend () noexcept { return suspend_always_prt {}; }
void return_value (T);
void unhandled_exception ();
};
using handle_type = std::coroutine_handle<promise_type>;
looper (handle_type);
struct suspend_always_prt {
bool await_ready () noexcept;
void await_suspend (handle_type) noexcept;
void await_resume () noexcept;
};
};
template <typename T>
looper<T>
with_ctorable_state (T)
{
co_return T ();
}
auto
foo ()
{
return with_ctorable_state<std::string>;
}
% g++-12.0.0 -fcoroutines -fno-exceptions -c n7pshqai.C
n7pshqai.C: In function 'looper<T> with_ctorable_state(T) [with T =
std::__cxx11::basic_string<char>]':
n7pshqai.C:27:1: internal compiler error: in gimplify_var_or_parm_decl, at
gimplify.c:2958
27 | with_ctorable_state (T)
| ^~~~~~~~~~~~~~~~~~~
0x7984d0 gimplify_var_or_parm_decl
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:2958
0xe96100 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:15029
0xeaefd3 gimplify_modify_expr
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:5960
0xe960ed gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:14568
0xeb0f2b gimplify_cleanup_point_expr
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:7006
0xe964f1 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:14961
0xe999d6 gimplify_stmt(tree_node**, gimple**)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:7006
0xe9746b gimplify_statement_list
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:1997
0xe9746b gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:15013
0xe999d6 gimplify_stmt(tree_node**, gimple**)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:7006
0xe9a28f gimplify_bind_expr
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:1426
0xe967b4 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:14769
0xeb04d6 gimplify_stmt(tree_node**, gimple**)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:7006
0xeb04d6 gimplify_body(tree_node*, bool)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:15814
0xeb094d gimplify_function_tree(tree_node*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimplify.c:15968
0xcce107 cgraph_node::analyze()
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/cgraphunit.c:670
0xcd0d57 analyze_functions
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/cgraphunit.c:1234
0xcd1a3d symbol_table::finalize_compilation_unit()
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/cgraphunit.c:2508
