[Bug c++/46298] New: constexpr ICE on ARM

[Bug c++/46298] New: constexpr ICE on ARM

[cltang at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46298

           Summary: constexpr ICE on ARM
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: cltang@gcc.gnu.org
            Target: arm


Current mainline trunk ARM build fails with this (seems a BIND_EXPR appears in
an assertion expecting a CALL_EXPR):

make[4]: Entering directory
`/home/cltang/nexus/build/gcc-arm-4_6/arm-nthu-linux-gnueabi/libstdc++-v3/include'
mkdir -p ./arm-nthu-linux-gnueabi/bits/stdc++.h.gch
/home/cltang/nexus/build/gcc-arm-4_6/./gcc/xgcc -shared-libgcc
-B/home/cltang/nexus/build/gcc-arm-4_6/./gcc -nostdinc++
-L/home/cltang/nexus/build/gcc-arm-4_6/arm-nthu-linux-gnueabi/libstdc++-v3/src
-L/home/cltang/nexus/build/gcc-arm-4_6/arm-nthu-linux-gnueabi/libstdc++-v3/src/.libs
-B/home/cltang/nexus/arm-4_6/arm-nthu-linux-gnueabi/bin/
-B/home/cltang/nexus/arm-4_6/arm-nthu-linux-gnueabi/lib/ -isystem
/home/cltang/nexus/arm-4_6/arm-nthu-linux-gnueabi/include -isystem
/home/cltang/nexus/arm-4_6/arm-nthu-linux-gnueabi/sys-include    -x c++-header
-nostdinc++ -g -O2 -D_GNU_SOURCE
-I/home/cltang/nexus/build/gcc-arm-4_6/arm-nthu-linux-gnueabi/libstdc++-v3/include/arm-nthu-linux-gnueabi
-I/home/cltang/nexus/build/gcc-arm-4_6/arm-nthu-linux-gnueabi/libstdc++-v3/include
-I/home/cltang/nexus/trunk/libstdc++-v3/libsupc++ -O2 -g -std=gnu++0x
/home/cltang/nexus/trunk/libstdc++-v3/include/precompiled/stdc++.h \
        -o arm-nthu-linux-gnueabi/bits/stdc++.h.gch/O2ggnu++0x.gch
In file included from
/home/cltang/nexus/build/gcc-arm-4_6/arm-nthu-linux-gnueabi/libstdc++-v3/include/ccomplex:42:0,
                 from
/home/cltang/nexus/trunk/libstdc++-v3/include/precompiled/stdc++.h:53:
/home/cltang/nexus/build/gcc-arm-4_6/arm-nthu-linux-gnueabi/libstdc++-v3/include/complex:
In constructor 'constexpr
std::complex<float>::complex(std::complex<float>::_ComplexT)':
/home/cltang/nexus/build/gcc-arm-4_6/arm-nthu-linux-gnueabi/libstdc++-v3/include/complex:1044:67:
internal compiler error: in build_data_member_initialization, at
cp/semantics.c:5475

[Bug c++/46298] constexpr ICE on ARM

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46298

--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> 2010-11-04 17:16:10 UTC ---
Please provide preprocessed input; I can't configure libstdc++ without an ARM
assembler/linker.

[Bug c++/46298] constexpr ICE on ARM

[rearnsha at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46298

Richard Earnshaw <rearnsha at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2010.11.04 17:18:27
                 CC|                            |rearnsha at gcc dot gnu.org
     Ever Confirmed|0                           |1

[Bug c++/46298] constexpr ICE on ARM

[cltang at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46298

--- Comment #2 from Chung-Lin Tang <cltang at gcc dot gnu.org> 2010-11-04 18:03:21 UTC ---
Created attachment 22286
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22286
Testcase

-std=gnu++0x is enough to trigger, but seems to only manifest on ARM.

[Bug c++/46298] constexpr ICE on ARM

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46298

--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2010-11-04 20:31:36 UTC ---
Author: jason
Date: Thu Nov  4 20:31:31 2010
New Revision: 166330

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166330
Log:
    PR c++/46298
    * semantics.c (build_constexpr_constructor_member_initializers):
    Handle an enclosing STATEMENT_LIST.

Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/semantics.c

[Bug c++/46298] constexpr ICE on ARM

[rearnsha at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46298

--- Comment #4 from Richard Earnshaw <rearnsha at gcc dot gnu.org> 2010-11-14 17:19:03 UTC ---
Jason - is this fixed now?  If so can you close this please.

[Bug c++/46298] constexpr ICE on ARM

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46298

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |FIXED

--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> 2010-12-08 20:04:45 UTC ---
Fixed.