http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57402
Bug ID: 57402
Summary: [4.9 Regression] ICE: in make_decl_rtl, at
varasm.c:1147 when initializing variable-sized array
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Created attachment 30183
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30183&action=edit
reduced testcase
Compiler output:
$ gcc testcase.C
testcase.C: In function 'void f(int)':
testcase.C:3:15: internal compiler error: in make_decl_rtl, at varasm.c:1147
int a[i] = {};
^
0xe21df3 make_decl_rtl(tree_node*)
/mnt/svn/gcc-trunk/gcc/varasm.c:1143
0x938380 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**)
/mnt/svn/gcc-trunk/gcc/expr.c:9334
0x9511f7 expand_constructor
/mnt/svn/gcc-trunk/gcc/expr.c:7745
0x938182 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**)
/mnt/svn/gcc-trunk/gcc/expr.c:9571
0x945112 store_expr(tree_node*, rtx_def*, int, bool)
/mnt/svn/gcc-trunk/gcc/expr.c:5239
0x9474e9 expand_assignment(tree_node*, tree_node*, bool)
/mnt/svn/gcc-trunk/gcc/expr.c:4874
0x84650f expand_gimple_stmt_1
/mnt/svn/gcc-trunk/gcc/cfgexpand.c:2274
0x84650f expand_gimple_stmt
/mnt/svn/gcc-trunk/gcc/cfgexpand.c:2370
0x847dad expand_gimple_basic_block
/mnt/svn/gcc-trunk/gcc/cfgexpand.c:4204
0x849e1c gimple_expand_cfg
/mnt/svn/gcc-trunk/gcc/cfgexpand.c:4723
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.
$ gcc -v
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-199273-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df
--enable-languages=c,c++,lto,fortran
--prefix=/mnt/svn/gcc-trunk/binary-199273-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20130524 (experimental) (GCC)
GCC 4.8 output:
$ gcc testcase.C
testcase.C: In function 'void f(int)':
testcase.C:3:15: error: variable-sized object 'a' may not be initialized
int a[i] = {};
^
Tested revisions:
r199273 - crash
4.8 r198018 - error
