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[Bug c++/70386] New: ICE with -Wall on valid code on x86_64-linux-gnu in verify_ctor_sanity, at cp/constexpr.c:2232
- From: "su at cs dot ucdavis.edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 24 Mar 2016 06:17:56 +0000
- Subject: [Bug c++/70386] New: ICE with -Wall on valid code on x86_64-linux-gnu in verify_ctor_sanity, at cp/constexpr.c:2232
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70386
Bug ID: 70386
Summary: ICE with -Wall on valid code on x86_64-linux-gnu in
verify_ctor_sanity, at cp/constexpr.c:2232
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: su at cs dot ucdavis.edu
Target Milestone: ---
The following code causes an ICE when compiled with the current GCC trunk with
-Wall on x86_64-linux-gnu in both 32-bit and 64-bit modes.
This is a regression from 5.3.x.
$ g++-trunk -v
Using built-in specs.
COLLECT_GCC=g++-trunk
COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/6.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-source-trunk/configure --enable-languages=c,c++,lto
--prefix=/usr/local/gcc-trunk --disable-bootstrap
Thread model: posix
gcc version 6.0.0 20160323 (experimental) [trunk revision 234418] (GCC)
$
$ g++-trunk small.cpp
$ g++-5.3 -Wall small.cpp
$
$ g++-trunk -Wall small.cpp
small.cpp: In function âint main()â:
small.cpp:14:20: internal compiler error: in verify_ctor_sanity, at
cp/constexpr.c:2232
return (cp () == d);
^
0x845875 verify_ctor_sanity
../../gcc-source-trunk/gcc/cp/constexpr.c:2232
0x852643 cxx_eval_bare_aggregate
../../gcc-source-trunk/gcc/cp/constexpr.c:2257
0x84d924 cxx_eval_constant_expression
../../gcc-source-trunk/gcc/cp/constexpr.c:3699
0x851fa9 cxx_eval_component_reference
../../gcc-source-trunk/gcc/cp/constexpr.c:1954
0x84e2dc cxx_eval_constant_expression
../../gcc-source-trunk/gcc/cp/constexpr.c:3670
0x8538f9 cxx_eval_outermost_constant_expr
../../gcc-source-trunk/gcc/cp/constexpr.c:3947
0x8565bc maybe_constant_value_1
../../gcc-source-trunk/gcc/cp/constexpr.c:4135
0x8565bc maybe_constant_value(tree_node*, tree_node*)
../../gcc-source-trunk/gcc/cp/constexpr.c:4156
0x779c36 cp_build_binary_op(unsigned int, tree_code, tree_node*, tree_node*,
int)
../../gcc-source-trunk/gcc/cp/typeck.c:5096
0x77b747 cp_build_binary_op(unsigned int, tree_code, tree_node*, tree_node*,
int)
../../gcc-source-trunk/gcc/cp/typeck.c:4729
0x623d3a build_new_op_1
../../gcc-source-trunk/gcc/cp/call.c:5782
0x624d4e build_new_op(unsigned int, tree_code, int, tree_node*, tree_node*,
tree_node*, tree_node**, int)
../../gcc-source-trunk/gcc/cp/call.c:5827
0x766322 build_x_binary_op(unsigned int, tree_code, tree_node*, tree_code,
tree_node*, tree_code, tree_node**, int)
../../gcc-source-trunk/gcc/cp/typeck.c:3866
0x740946 cp_parser_binary_expression
../../gcc-source-trunk/gcc/cp/parser.c:8923
0x7410a0 cp_parser_assignment_expression
../../gcc-source-trunk/gcc/cp/parser.c:9055
0x743979 cp_parser_expression
../../gcc-source-trunk/gcc/cp/parser.c:9222
0x73504e cp_parser_primary_expression
../../gcc-source-trunk/gcc/cp/parser.c:4878
0x736816 cp_parser_postfix_expression
../../gcc-source-trunk/gcc/cp/parser.c:6690
0x73f95c cp_parser_unary_expression
../../gcc-source-trunk/gcc/cp/parser.c:7988
0x7401b7 cp_parser_cast_expression
../../gcc-source-trunk/gcc/cp/parser.c:8665
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
$
---------------------------------------
struct A { void f () {} };
struct B : public A {};
struct C : public A {};
struct D : public B, public C {};
typedef void (C::*cp) ();
typedef void (D::*dp) ();
int
main ()
{
cp c = &A::f;
dp d = c;
return (cp () == d);
}