[Bug target/94254] [10 regression] r10-7312 causes compiler hangs

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94254

Zdenek Sojka <zsojka at seznam dot cz> changed:

           What    |Removed                     |Added
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                 CC|                            |zsojka at seznam dot cz

--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> ---
I observe the same issue, and it breaks libgcc build for me:

$
/repo/build-trunk-r10-7320-20200321085330-g497498c878d-checking-yes-rtl-df-extra-powerpc/./gcc/xgcc
-B/repo/build-trunk-r10-7320-20200321085330-g497498c878d-checking-yes-rtl-df-extra-powerpc/./gcc/
-B/repo/gcc-trunk//binary-trunk-r10-7320-20200321085330-g497498c878d-checking-yes-rtl-df-extra-powerpc/powerpc-unknown-linux-gnu/bin/
-B/repo/gcc-trunk//binary-trunk-r10-7320-20200321085330-g497498c878d-checking-yes-rtl-df-extra-powerpc/powerpc-unknown-linux-gnu/lib/
-isystem
/repo/gcc-trunk//binary-trunk-r10-7320-20200321085330-g497498c878d-checking-yes-rtl-df-extra-powerpc/powerpc-unknown-linux-gnu/include
-isystem
/repo/gcc-trunk//binary-trunk-r10-7320-20200321085330-g497498c878d-checking-yes-rtl-df-extra-powerpc/powerpc-unknown-linux-gnu/sys-include
   -g -O2 -O2  -g -O2 -DIN_GCC  -DCROSS_DIRECTORY_STRUCTURE  -W -Wall
-Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition  -isystem ./include   -fPIC
-mlong-double-128 -mno-minimal-toc -g -DIN_LIBGCC2 -fbuilding-libgcc
-fno-stack-protector   -fPIC -mlong-double-128 -mno-minimal-toc -I. -I.
-I../.././gcc -I/repo/gcc-trunk/libgcc -I/repo/gcc-trunk/libgcc/.
-I/repo/gcc-trunk/libgcc/../gcc -I/repo/gcc-trunk/libgcc/../include
-I/repo/gcc-trunk/libgcc/../libdecnumber/dpd
-I/repo/gcc-trunk/libgcc/../libdecnumber -DHAVE_CC_TLS  -o _sd_to_si.o -MT
_sd_to_si.o -MD -MP -MF _sd_to_si.dep -DFINE_GRAINED_LIBRARIES -DL_sd_to_si
-DWIDTH=32 -c /repo/gcc-trunk/libgcc/dfp-bit.c

hangs; I can provide reduced testcase if needed

(for reasons unknown to me, git gcc-descr returns "r10-7320" for me for the
same  git checkout as in #c0)