[Bug libgcc/77361] New: sparc - unrecognizable insn in __fixsfdi

["wigyori at uid0 dot hu" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77361

            Bug ID: 77361
           Summary: sparc - unrecognizable insn in __fixsfdi
           Product: gcc
           Version: 5.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgcc
          Assignee: unassigned at gcc dot gnu.org
          Reporter: wigyori at uid0 dot hu
  Target Milestone: ---

Hi,

I'm trying to build a cross-compiler for sparc, however libgcc build fails with
the following error:

-------------
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0-minimal/./gcc/xgcc
-B/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0-minimal/./gcc/
-B/openwrt/staging_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/sparc-openwrt-linux-musl/bin/
-B/openwrt/staging_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/sparc-openwrt-linux-musl/lib/
-isystem
/openwrt/staging_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/sparc-openwrt-linux-musl/include
-isystem
/openwrt/staging_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/sparc-openwrt-linux-musl/sys-include
   -Os -pipe -mcpu=v8 -fno-caller-saves -fno-caller-saves -fno-plt
-fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result -O2 
-Os -pipe -mcpu=v8 -fno-caller-saves -fno-caller-saves -fno-plt -fhonour-copts
-Wno-error=unused-but-set-variable -Wno-error=unused-result -DIN_GCC 
-DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition 
-isystem ./include   -fPIC -g -DIN_LIBGCC2 -fbuilding-libgcc
-fno-stack-protector -Dinhibit_libc  -fPIC -I. -I. -I../.././gcc
-I/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/libgcc
-I/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/libgcc/.
-I/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/libgcc/../gcc
-I/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/libgcc/../include
 -DHAVE_CC_TLS  -o _fixsfdi.o -MT _fixsfdi.o -MD -MP -MF _fixsfdi.dep
-DL_fixsfdi -c
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/libgcc/libgcc2.c
-fvisibility=hidden -DHIDE_EXPORTS
cc1: note: someone does not honour COPTS correctly, passed 2 times
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/libgcc/libgcc2.c:
In function '__fixsfdi':
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/libgcc/libgcc2.c:1502:1:
error: unrecognizable insn:
 }
 ^
(call_insn/j 34 33 35 7 (parallel [
            (set (reg:DI 24 %i0)
                (call (mem:SI (reg/f:SI 123) [0 __fixunssfdi S4 A32])
                    (const_int 0 [0])))
            (return)
        ])
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/libgcc/libgcc2.c:1501
-1
     (expr_list:REG_CALL_DECL (symbol_ref:SI ("__fixunssfdi") [flags 0x41]
<function_decl 0x2b713d9d2438 __fixunssfdi>)
        (nil))
    (expr_list:SF (use (reg:SF 24 %i0))
        (nil)))
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/libgcc/libgcc2.c:1502:1:
internal compiler error: in extract_insn, at recog.c:2343
0x8999b5 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
       
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/gcc/rtl-error.c:110
0x8999e9 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
       
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/gcc/rtl-error.c:118
0x86749e extract_insn(rtx_insn*)
       
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/gcc/recog.c:2343
0x6d9126 instantiate_virtual_regs_in_insn
       
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/gcc/function.c:1646
0x6d9126 instantiate_virtual_regs
       
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/gcc/function.c:1966
0x6d9126 execute
       
/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/gcc/function.c:2015
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://dev.openwrt.org/> for instructions.
make[5]: *** [_fixsfdi.o] Error 1
make[5]: Leaving directory
`/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0-minimal/sparc-openwrt-linux-musl/libgcc'
make[4]: *** [all-target-libgcc] Error 2
-------------

GCC is configured with:

/openwrt/sparc/openwrt/build_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14/gcc-5.4.0/configure
\
--with-bugurl=https://dev.openwrt.org/ \
--with-pkgversion="OpenWrt GCC 5.4.0 49903" \
--prefix=/openwrt/sparc/openwrt/staging_dir/toolchain-sparc_sparc_gcc-5.4.0_musl-1.1.14
\
--build=x86_64-linux-gnu \
--host=x86_64-linux-gnu--target=sparc-openwrt-linux-musl \
--with-gnu-ld \
--enable-target-optspace \
--disable-libgomp \
--disable-libmudflap \
--disable-multilib \
--disable-nls \
--without-isl \
--without-cloog \
--with-host-libstdcxx=-lstdc++     \
--with-gmp=/openwrt/sparc/openwrt/staging_dir/host \
--with-mpfr=/openwrt/sparc/openwrt/staging_dir/host \
--with-mpc=/openwrt/sparc/openwrt/staging_dir/host \
--disable-decimal-float \
--with-diagnostics-color=auto-if-env \
--disable-libssp \
--enable-targets=all \
--with-long-double-128 \
--enable-__cxa_atexit \
--with-newlib \
--without-headers \
--enable-languages=c \
--disable-libsanitizer \
--disable-libssp \
--disable-shared \
--disable-threads

Thanks,
Zoltan H