https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88110
Bug ID: 88110
Summary: [9 Regression] ICE (segfault) with -std=C++2a with
cxx_eval_constant_expression
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
Target Milestone: ---
Created attachment 45041
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45041&action=edit
Test csae, compile with "g++ -std=c++2a" works with "-std=c++17"
Compiling the attached program with "g++ -std=c++17" works, but with "g++
-std=c++2a" it segfaults.
It compiles with g++ 8.2.1 20181120 (and "-std=c++2a").
input17.ii:14:32: internal compiler error: Segmentation fault
14 | if (command->is_error_layer()) ;
| ^
0xf0e25f crash_signal
../../gcc/toplev.c:326
0x88f320 tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/tree.h:3153
0x88f320 cxx_eval_constant_expression
../../gcc/cp/constexpr.c:4834
