http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55876
Bug #: 55876
Summary: internal compiler error: in gen_rtx_SUBREG, at
emit-rtl.c:776
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: [email protected]
ReportedBy: [email protected]
test.c:
...
static inline unsigned char
bar (const char *b)
{
unsigned char used = 0;
int i;
for (i = 0; i < 4; ++i)
if (b[i] != 'F')
used = 1;
return used;
}
static char buffer[8];
unsigned char
foo (void)
{
return bar (buffer) ? 0 : 1;
}
...
...
$ ./install/bin/mips-linux-gnu-gcc -O3 test.c -S -mabi=64 -march=mips64
test.c: In function 'foo':
test.c:19:3: internal compiler error: in gen_rtx_SUBREG, at emit-rtl.c:776
return bar (buffer) ? 0 : 1;
^
0x8394d8b gen_rtx_SUBREG(machine_mode, rtx_def*, int)
gcc/emit-rtl.c:776
0x85d7da4 widen_operand
gcc/optabs.c:333
0x85d927d expand_binop(machine_mode, optab_tag, rtx_def*, rtx_def*, rtx_def*,
int, optab_methods)
gcc/optabs.c:1648
0x83ce84a expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
gcc/expr.c:9051
0x83d5d09 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**)
gcc/expr.c:10426
0x83d5dc8 expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**)
gcc/expr.c:7848
0x83cf3f5 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**)
gcc/expr.c:9211
0x83d5dc8 expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**)
gcc/expr.c:7848
0x86bbe63 expand_expr
gcc/expr.h:444
0x86bf98f expand_return(tree_node*)
gcc/stmt.c:1546
0x82d78a3 expand_gimple_stmt_1
gcc/cfgexpand.c:2183
0x82d7e11 expand_gimple_stmt
gcc/cfgexpand.c:2305
0x82d8f36 expand_gimple_basic_block
gcc/cfgexpand.c:4084
0x82d9d13 gimple_expand_cfg
gcc/cfgexpand.c:4603
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.
...
configure line:
...
$ ./install/bin/mips-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=./install/bin/mips-linux-gnu-gcc
COLLECT_LTO_WRAPPER=install/bin/../libexec/gcc/mips-linux-gnu/4.8.0/lto-wrapper
Target: mips-linux-gnu
Configured with: src/gcc-mainline/configure --build=i686-pc-linux-gnu
--host=i686-pc-linux-gnu --target=mips-linux-gnu --enable-threads
--disable-libmudflap --disable-libssp --disable-libstdcxx-pch --with-gnu-as
--with-gnu-ld --enable-languages=c,c++ --enable-shared --enable-lto
--enable-symvers=gnu --enable-__cxa_atexit --disable-nls
--prefix=/opt/codesourcery --with-sysroot=/opt/codesourcery/mips-linux-gnu/libc
--with-build-sysroot=install/mips-linux-gnu/libc
--with-gmp=obj/pkg-mainline-0-mips-linux-gnu/fsf-mainline-0-mips-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr
--with-mpfr=obj/pkg-mainline-0-mips-linux-gnu/fsf-mainline-0-mips-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr
--with-mpc=obj/pkg-mainline-0-mips-linux-gnu/fsf-mainline-0-mips-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr
--with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm'
--with-isl=obj/pkg-mainline-0-mips-linux-gnu/fsf-mainline-0-mips-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr
--with-cloog=obj/pkg-mainline-0-mips-linux-gnu/fsf-mainline-0-mips-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr
--with-libelf=obj/pkg-mainline-0-mips-linux-gnu/fsf-mainline-0-mips-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr
--disable-libgomp --disable-libitm --enable-poison-system-directories
--with-build-time-tools=install/mips-linux-gnu/bin
--with-build-time-tools=install/mips-linux-gnu/bin
Thread model: posix
gcc version 4.8.0 20130104 (experimental) (GCC)
...
