https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82148
--- Comment #1 from Matthias Hochsteger <matthias.hochsteger at tuwien dot
ac.at> ---
Same on latest trunk (git commit 520b78be6e5b448ae4341960acc5706ae561c974):
~/local/gcc7/bin/c++ -v -save-temps -std=c++17 -c code.cpp
Using built-in specs.
COLLECT_GCC=/home/matthias/local/gcc7/bin/c++
Target: x86_64-pc-linux-gnu
Configured with: ../configure --prefix=/home/matthias/local/gcc7
--enable-languages=c,c++ --disable-multilib
Thread model: posix
gcc version 8.0.0 20170908 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-std=c++1z' '-c' '-shared-libgcc'
'-mtune=generic' '-march=x86-64'
/home/matthias/local/gcc7/libexec/gcc/x86_64-pc-linux-gnu/8.0.0/cc1plus -E
-quiet -v -D_GNU_SOURCE code.cpp -mtune=generic -march=x86-64 -std=c++1z
-fpch-preprocess -o code.ii
ignoring nonexistent directory
"/home/matthias/local/gcc7/lib/gcc/x86_64-pc-linux-gnu/8.0.0/../../../../x86_64-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/home/matthias/local/gcc7/lib/gcc/x86_64-pc-linux-gnu/8.0.0/../../../../include/c++/8.0.0
/home/matthias/local/gcc7/lib/gcc/x86_64-pc-linux-gnu/8.0.0/../../../../include/c++/8.0.0/x86_64-pc-linux-gnu
/home/matthias/local/gcc7/lib/gcc/x86_64-pc-linux-gnu/8.0.0/../../../../include/c++/8.0.0/backward
/home/matthias/local/gcc7/lib/gcc/x86_64-pc-linux-gnu/8.0.0/include
/usr/local/include
/home/matthias/local/gcc7/include
/home/matthias/local/gcc7/lib/gcc/x86_64-pc-linux-gnu/8.0.0/include-fixed
/usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-std=c++1z' '-c' '-shared-libgcc'
'-mtune=generic' '-march=x86-64'
/home/matthias/local/gcc7/libexec/gcc/x86_64-pc-linux-gnu/8.0.0/cc1plus
-fpreprocessed code.ii -quiet -dumpbase code.cpp -mtune=generic -march=x86-64
-auxbase code -std=c++1z -version -o code.s
GNU C++14 (GCC) version 8.0.0 20170908 (experimental) (x86_64-pc-linux-gnu)
compiled by GNU C version 8.0.0 20170908 (experimental), GMP version
6.1.0, MPFR version 3.1.4, MPC version 1.0.3, isl version isl-0.16.1-GMP
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C++14 (GCC) version 8.0.0 20170908 (experimental) (x86_64-pc-linux-gnu)
compiled by GNU C version 8.0.0 20170908 (experimental), GMP version
6.1.0, MPFR version 3.1.4, MPC version 1.0.3, isl version isl-0.16.1-GMP
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 34f3776a4b4b0480fb19303c453a2e50
during RTL pass: expand
code.cpp: In function ‘void bar()’:
code.cpp:17:8: internal compiler error: in assign_temp, at function.c:970
foo(Derived{0});
~~~^~~~~~~~~~~~
0x6cef41 assign_temp(tree_node*, int, int)
../../gcc/function.c:970
0xb80dd3 initialize_argument_information
../../gcc/calls.c:1830
0xb818df expand_call(tree_node*, rtx_def*, int)
../../gcc/calls.c:3279
0xc8ea1d expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../gcc/expr.c:10860
0xb957e0 expand_expr
../../gcc/expr.h:276
0xb957e0 expand_call_stmt
../../gcc/cfgexpand.c:2666
0xb957e0 expand_gimple_stmt_1
../../gcc/cfgexpand.c:3585
0xb957e0 expand_gimple_stmt
../../gcc/cfgexpand.c:3751
0xb96721 expand_gimple_basic_block
../../gcc/cfgexpand.c:5750
0xb9b12e execute
../../gcc/cfgexpand.c:6357
