[Bug c++/84518] [8 Regression] ICE with lambda capturing broken variable
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84518 Jakub Jelinek changed: What|Removed |Added Status|NEW |RESOLVED Target Milestone|8.5 |9.0 Resolution|--- |FIXED --- Comment #11 from Jakub Jelinek --- The GCC 8 branch is being closed, fixed in GCC 9.1.
[Bug c++/84518] [8 Regression] ICE with lambda capturing broken variable
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84518 Jakub Jelinek changed: What|Removed |Added Target Milestone|8.4 |8.5 --- Comment #10 from Jakub Jelinek --- GCC 8.4.0 has been released, adjusting target milestone.
[Bug c++/84518] [8 Regression] ICE with lambda capturing broken variable
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84518 --- Comment #9 from Jakub Jelinek --- It got fixed with r269292 in particular.
[Bug c++/84518] [8 Regression] ICE with lambda capturing broken variable
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84518 Jakub Jelinek changed: What|Removed |Added Priority|P1 |P4 --- Comment #3 from Jakub Jelinek --- Actually P4, error-recovery...
[Bug c++/84518] [8 Regression] ICE with lambda capturing broken variable
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84518 Jakub Jelinek changed: What|Removed |Added Priority|P3 |P1 CC||jakub at gcc dot gnu.org, ||jason at gcc dot gnu.org Target Milestone|--- |8.0
[Bug c++/84518] [8 Regression] ICE with lambda capturing broken variable
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84518
David Malcolm changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed||2018-02-22
CC||dmalcolm at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #2 from David Malcolm ---
Thanks for filing this report.
Confirmed. Both ICEs started with r253265.
The first ICE (testcase in comment #0) happens at line 446 of lambda.c in
build_capture_proxy here:
441 if (DECL_NORMAL_CAPTURE_P (member))
442 {
443 if (DECL_VLA_CAPTURE_P (member))
444 {
445 init = CONSTRUCTOR_ELT (init, 0)->value;
446 init = TREE_OPERAND (init, 0); // Strip ADDR_EXPR.
447 init = TREE_OPERAND (init, 0); // Strip ARRAY_REF.
448 }
where "init" is error_mark.
The second ICE (testcase in comment #1):
Happens at line 288 of lambda.c in is_normal_capture_proxy here:
288 gcc_assert (TREE_CODE (val) == COMPONENT_REF);
where val is a NOP_EXPR around a COMPONENT_REF (casting from T* to reference to
T[]).
[Bug c++/84518] [8 Regression] ICE with lambda capturing broken variable
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84518
--- Comment #1 from Volker Reichelt ---
A modified testcase produces a slightly different stack-trace:
template void foo()
{
T x[=];
[]{};
}
bug.cc: In function 'void foo()':
bug.cc:3:7: error: expected primary-expression before '=' token
T x[=];
^
bug.cc:3:8: error: expected primary-expression before ']' token
T x[=];
^
bug.cc: In lambda function:
bug.cc:4:6: internal compiler error: in is_normal_capture_proxy, at
cp/lambda.c:289
[]{};
^
0x614602 is_normal_capture_proxy(tree_node*)
../../gcc/gcc/cp/lambda.c:289
0x8d4918 is_capture_proxy_with_ref(tree_node*)
../../gcc/gcc/cp/lambda.c:301
0x8d49ad insert_capture_proxy(tree_node*)
../../gcc/gcc/cp/lambda.c:311
0x8d546f build_capture_proxy(tree_node*, tree_node*)
../../gcc/gcc/cp/lambda.c:474
0x8d8596 start_lambda_function(tree_node*, tree_node*)
../../gcc/gcc/cp/lambda.c:1374
0x91daad cp_parser_lambda_body
../../gcc/gcc/cp/parser.c:10662
0x91daad cp_parser_lambda_expression
../../gcc/gcc/cp/parser.c:10182
0x91daad cp_parser_primary_expression
../../gcc/gcc/cp/parser.c:5257
0x93043c cp_parser_postfix_expression
../../gcc/gcc/cp/parser.c:7026
0x931010 cp_parser_unary_expression
../../gcc/gcc/cp/parser.c:8318
0x91139f cp_parser_cast_expression
../../gcc/gcc/cp/parser.c:9086
0x911baa cp_parser_binary_expression
../../gcc/gcc/cp/parser.c:9187
0x9133e4 cp_parser_assignment_expression
../../gcc/gcc/cp/parser.c:9482
0x913af8 cp_parser_expression
../../gcc/gcc/cp/parser.c:9651
0x9157b8 cp_parser_expression_statement
../../gcc/gcc/cp/parser.c:8
0x91bb2d cp_parser_statement
../../gcc/gcc/cp/parser.c:10922
0x91d040 cp_parser_statement_seq_opt
../../gcc/gcc/cp/parser.c:11261
0x91d117 cp_parser_compound_statement
../../gcc/gcc/cp/parser.c:11215
0x933890 cp_parser_function_body
../../gcc/gcc/cp/parser.c:21756
0x933890 cp_parser_ctor_initializer_opt_and_function_body
../../gcc/gcc/cp/parser.c:21793
Please submit a full bug report, [etc.]
