https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99030
Bug ID: 99030
Summary: [11 Regression] ICE in finish_expr_stmt, at
cp/semantics.c:776
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Changed somewhere between 20200823 and 20201004 :
$ cat z1.cc
void foo ()
{
extern int a;
[] (auto b) { a; } (1);
}
$ g++-11-20200823 -c z1.cc
$
$ g++-11-20210207 -c z1.cc
z1.cc: In instantiation of 'foo()::<lambda(auto:1)> [with auto:1 = int]':
z1.cc:4:24: required from here
z1.cc:4:17: internal compiler error: in finish_expr_stmt, at cp/semantics.c:776
4 | [] (auto b) { a; } (1);
| ^
0x7e11cc finish_expr_stmt(tree_node*)
../../gcc/cp/semantics.c:776
0x7c72b9 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc/cp/pt.c:18158
0x7c5c17 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc/cp/pt.c:18475
0x7c5c17 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc/cp/pt.c:18475
0x7ba4f3 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc/cp/pt.c:25835
0x7ba4f3 instantiate_body
../../gcc/cp/pt.c:25835
0x7bb580 instantiate_decl(tree_node*, bool, bool)
../../gcc/cp/pt.c:26124
0x6ea4d3 maybe_instantiate_decl(tree_node*)
../../gcc/cp/decl2.c:5463
0x6ead54 mark_used(tree_node*, int)
../../gcc/cp/decl2.c:5691
0x674792 build_over_call
../../gcc/cp/call.c:9357
0x678b73 build_op_call_1
../../gcc/cp/call.c:4957
0x678b73 build_op_call(tree_node*, vec<tree_node*, va_gc, vl_embed>**, int)
../../gcc/cp/call.c:4986
0x7e4c72 finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool,
bool, int)
../../gcc/cp/semantics.c:2762
0x783995 cp_parser_postfix_expression
../../gcc/cp/parser.c:7715
0x793d35 cp_parser_unary_expression
../../gcc/cp/parser.c:8818
0x76d96f cp_parser_cast_expression
../../gcc/cp/parser.c:9722
0x76e1a2 cp_parser_binary_expression
../../gcc/cp/parser.c:9824
0x76e900 cp_parser_assignment_expression
../../gcc/cp/parser.c:10128
0x76f77c cp_parser_expression
../../gcc/cp/parser.c:10298
0x772317 cp_parser_expression_statement
../../gcc/cp/parser.c:11965
