https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65664
Bug ID: 65664
Summary: ARM bootstrap fails with --with-fpu=neon-vfpv4
Product: gcc
Version: 4.8.4
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: lukacs at topgroups dot ca
Host: arm-slackware-linux-gnueabi
Target: arm-slackware-linux-gnueabi
Build: arm-slackware-linux-gnueabi
Created attachment 35219
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35219&action=edit
Compilation logs
configuration parameters include:
--with-cpu=cortex-a7 --with-tune=cortex-a7 --with-arch=armv7-a
--with-float=softfp --with-fpu=neon-vfpv4 --disable-werror
and produces:
/bin/sh ./libtool --tag=CC --mode=compile
/home/woland/tmp/build-gcc/gcc.build.lnx/./gcc/xgcc
-B/home/woland/tmp/build-gcc/gcc.build.lnx/./gcc/
-B/usr/arm-slackware-linux-gnueabi/bin/ -B/usr/arm-slackware-linux-gnueabi/lib/
-isystem /usr/arm-slackware-linux-gnueabi/include -isystem
/usr/arm-slackware-linux-gnueabi/sys-include -DHAVE_CONFIG_H -I.
-I../../../gcc-4.8.4/libgo -I ../../../gcc-4.8.4/libgo/runtime
-I../../../gcc-4.8.4/libgo/../libffi/include -I../libffi/include -pthread
-fexceptions -fplan9-extensions -Wall -Wextra -Wwrite-strings -Wcast-qual
-D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I
../../../gcc-4.8.4/libgo/../libgcc -I ../../../gcc-4.8.4/libgo/../libbacktrace
-I ../../gcc/include -g -O2 -march=armv7-a -mtune=cortex-a7 -mfloat-abi=softfp
-MT go-type-complex.lo -MD -MP -MF .deps/go-type-complex.Tpo -c -o
go-type-complex.lo `test -f 'runtime/go-type-complex.c' || echo
'../../../gcc-4.8.4/libgo/'`runtime/go-type-complex.c
libtool: compile: /home/woland/tmp/build-gcc/gcc.build.lnx/./gcc/xgcc
-B/home/woland/tmp/build-gcc/gcc.build.lnx/./gcc/
-B/usr/arm-slackware-linux-gnueabi/bin/ -B/usr/arm-slackware-linux-gnueabi/lib/
-isystem /usr/arm-slackware-linux-gnueabi/include -isystem
/usr/arm-slackware-linux-gnueabi/sys-include -DHAVE_CONFIG_H -I.
-I../../../gcc-4.8.4/libgo -I ../../../gcc-4.8.4/libgo/runtime
-I../../../gcc-4.8.4/libgo/../libffi/include -I../libffi/include -pthread
-fexceptions -fplan9-extensions -Wall -Wextra -Wwrite-strings -Wcast-qual
-D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I
../../../gcc-4.8.4/libgo/../libgcc -I ../../../gcc-4.8.4/libgo/../libbacktrace
-I ../../gcc/include -g -O2 -march=armv7-a -mtune=cortex-a7 -mfloat-abi=softfp
-MT go-type-complex.lo -MD -MP -MF .deps/go-type-complex.Tpo -c
../../../gcc-4.8.4/libgo/runtime/go-type-complex.c -fPIC -DPIC -o
.libs/go-type-complex.o
../../../gcc-4.8.4/libgo/runtime/go-type-complex.c: In function
'__go_type_hash_complex':
../../../gcc-4.8.4/libgo/runtime/go-type-complex.c:87:1: error: unrecognizable
insn:
}
^
(insn 99 98 100 17 (set (reg:DI 175 [ D.9567 ])
(unspec:DI [
(mem/c:DI (plus:SI (reg/f:SI 105 virtual-stack-vars)
(const_int -24 [0xffffffffffffffe8])) [6 S8 A32])
] UNSPEC_MISALIGNED_ACCESS))
../../../gcc-4.8.4/libgo/runtime/go-type-complex.c:51 -1
(nil))
../../../gcc-4.8.4/libgo/runtime/go-type-complex.c:87:1: internal compiler
error: in extract_insn, at recog.c:2154
0x38cb63 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../gcc-4.8.4/gcc/rtl-error.c:109
0x38cbb7 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../gcc-4.8.4/gcc/rtl-error.c:117
0x35f1af extract_insn(rtx_def*)
../../gcc-4.8.4/gcc/recog.c:2154
0x2611e7 instantiate_virtual_regs_in_insn
../../gcc-4.8.4/gcc/function.c:1565
0x2611e7 instantiate_virtual_regs
../../gcc-4.8.4/gcc/function.c:1932
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.
make[4]: *** [go-type-complex.lo] Error 1
make[4]: Leaving directory
`/home/woland/tmp/build-gcc/gcc.build.lnx/arm-slackware-linux-gnueabi/libgo'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory
`/home/woland/tmp/build-gcc/gcc.build.lnx/arm-slackware-linux-gnueabi/libgo'
make[2]: *** [all] Error 2
make[2]: Leaving directory
`/home/woland/tmp/build-gcc/gcc.build.lnx/arm-slackware-linux-gnueabi/libgo'
make[1]: *** [all-target-libgo] Error 2
make[1]: Leaving directory `/home/woland/tmp/build-gcc/gcc.build.lnx'
make: *** [bootstrap] Error 2
If --with-fpu=neon-vfpv4 is removed, then it compiles fine.
