[Bug target/66140] New: ICE at extract_insn, at recog.c:2343 when compiling for alpha with gcc-5.1.1

[dhowells at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66140

            Bug ID: 66140
           Summary: ICE at extract_insn, at recog.c:2343 when compiling
                    for alpha with gcc-5.1.1
           Product: gcc
           Version: 5.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dhowells at redhat dot com
  Target Milestone: ---

Created attachment 35539
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35539&action=edit
Reduced test case

I'm seeing the following ICE:

alpha-linux-gnu-gcc -O2 -c alpha-reduced.c
alpha-reduced.c: In function 'lpfc_bg_scsi_prep_dma_buf_s3':
alpha-reduced.c:51:1: error: unrecognizable insn:
 }
 ^
(insn 88 87 89 9 (set (reg:DI 3 $3)
        (mem:DI (and:DI (plus:DI (mem/c:DI (plus:DI (reg/f:DI 30 $30)
                            (const_int 64 [0x40])) [6 %sfp+0 S8 A64])
                    (const_int 3 [0x3]))
                (const_int -8 [0xfffffffffffffff8])) [0  S8 A64]))
alpha-reduced.c:35 -1
     (nil))
alpha-reduced.c:51:1: internal compiler error: in extract_insn, at recog.c:2343

with the attached test case when cross-compiling for alpha with gcc-5.1.1.

The compiler is built from SVN rev 222331 dated 20150422 with no patches
applied and is running on an x86_64 Linux system.  The binutils is 2.25 based.

The compiler was configured thus:

CC=gcc \
CXX=g++ \
CFLAGS='-O2 -g -Wall -Wformat-security -fexceptions -fstack-protector-strong
--param=ssp-buffer-size=4 -grecord-gcc-switches -mtune=generic' \
CXXFLAGS=' -O2 -g -Wformat-security -fstack-protector-strong
--param=ssp-buffer-size=4 -grecord-gcc-switches -mtune=generic ' \
CFLAGS_FOR_TARGET='-g -O2 -Wall -fexceptions' \
AR_FOR_TARGET=/usr/bin/alpha-linux-gnu-ar \
AS_FOR_TARGET=/usr/bin/alpha-linux-gnu-as \
DLLTOOL_FOR_TARGET=/usr/bin/alpha-linux-gnu-dlltool \
LD_FOR_TARGET=/usr/bin/alpha-linux-gnu-ld \
NM_FOR_TARGET=/usr/bin/alpha-linux-gnu-nm \
OBJDUMP_FOR_TARGET=/usr/bin/alpha-linux-gnu-objdump \
RANLIB_FOR_TARGET=/usr/bin/alpha-linux-gnu-ranlib \
READELF_FOR_TARGET=/usr/bin/alpha-linux-gnu-readelf \
STRIP_FOR_TARGET=/usr/bin/alpha-linux-gnu-strip \
WINDRES_FOR_TARGET=/usr/bin/alpha-linux-gnu-windres \
WINDMC_FOR_TARGET=/usr/bin/alpha-linux-gnu-windmc \
LDFLAGS='-Wl,-z,relro ' \
../gcc-5.1.1-20150422/configure --bindir=/usr/bin
--build=x86_64-redhat-linux-gnu --datadir=/usr/share --disable-decimal-float
--disable-dependency-tracking --disable-gold --disable-libgcj --disable-libgomp
--disable-libmudflap --disable-libquadmath --disable-libssp
--disable-libunwind-exceptions --disable-nls --disable-plugin --disable-shared
--disable-silent-rules --disable-sjlj-exceptions --disable-threads
--with-ld=/usr/bin/alpha-linux-gnu-ld --enable-__cxa_atexit
--enable-checking=release --enable-gnu-indirect-function
--enable-gnu-unique-object --enable-initfini-array --enable-languages=c,c++
--enable-linker-build-id --enable-nls --enable-obsolete --enable-plugin
--enable-targets=all --exec-prefix=/usr --host=x86_64-redhat-linux-gnu
--includedir=/usr/include --infodir=/usr/share/info --libexecdir=/usr/libexec
--localstatedir=/var --mandir=/usr/share/man --prefix=/usr
--program-prefix=alpha-linux-gnu- --sbindir=/usr/sbin --sharedstatedir=/var/lib
--sysconfdir=/etc --target=alpha-linux-gnu
--with-bugurl=http://bugzilla.redhat.com/bugzilla/ --with-isl
--with-linker-hash-style=gnu --with-newlib
--with-sysroot=/usr/alpha-linux-gnu/sys-root --with-system-libunwind
--with-system-zlib --without-headers

and built thus:

AR_FOR_TARGET=/usr/bin/alpha-linux-gnu-ar \
AS_FOR_TARGET=/usr/bin/alpha-linux-gnu-as \
DLLTOOL_FOR_TARGET=/usr/bin/alpha-linux-gnu-dlltool \
LD_FOR_TARGET=/usr/bin/alpha-linux-gnu-ld \
NM_FOR_TARGET=/usr/bin/alpha-linux-gnu-nm \
OBJDUMP_FOR_TARGET=/usr/bin/alpha-linux-gnu-objdump \
RANLIB_FOR_TARGET=/usr/bin/alpha-linux-gnu-ranlib \
READELF_FOR_TARGET=/usr/bin/alpha-linux-gnu-readelf \
STRIP_FOR_TARGET=/usr/bin/alpha-linux-gnu-strip \
WINDRES_FOR_TARGET=/usr/bin/alpha-linux-gnu-windres \
WINDMC_FOR_TARGET=/usr/bin/alpha-linux-gnu-windmc \
make -C alpha-linux-gnu -j5 tooldir=/usr all-gcc
make -C alpha-linux-gnu -j5 tooldir=/usr all-target-libgcc