[Bug libgcc/77361] 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

--- Comment #1 from Zoltan HERPAI <wigyori at uid0 dot hu> ---
(In reply to Zoltan HERPAI from comment #0)
> 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

Copy-paste error:

< --host=x86_64-linux-gnu--target=sparc-openwrt-linux-musl \
> --host=x86_64-linux-gnu \
> --target=sparc-openwrt-linux-musl \