[Bug bootstrap/94961] New: [11 regression] internal compiler error: in df_refs_verify, at df-scan.c:4002

dimhen at gmail dot com gcc-bugzilla@gcc.gnu.org
Tue May 5 20:13:31 GMT 2020


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94961

            Bug ID: 94961
           Summary: [11 regression] internal compiler error: in
                    df_refs_verify, at df-scan.c:4002
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dimhen at gmail dot com
  Target Milestone: ---

r11-46 PASS
r11-117 FAIL

configure --enable-checking=yes,df --enable-languages=c,c++,lto
--disable-multilib

make
...
/home/dimhen/build/gcc_current/./prev-gcc/xg++
-B/home/dimhen/build/gcc_current/./prev-gcc/
-B/usr/local/x86_64-pc-linux-gnu/bin/ -nostdinc++
-B/home/dimhen/build/gcc_current/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-B/home/dimhen/build/gcc_current/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs

-I/home/dimhen/build/gcc_current/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu
 -I/home/dimhen/build/gcc_current/prev-x86_64-pc-linux-gnu/libstdc++-v3/include
 -I/home/dimhen/src/gcc_current/libstdc++-v3/libsupc++
-L/home/dimhen/build/gcc_current/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-L/home/dimhen/build/gcc_current/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
-fno-PIE -c   -g -O2 -fno-checking -gtoggle -DIN_GCC     -fno-exceptions
-fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute
-Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -Werror -fno-common  -DHAVE_CONFIG_H -I. -I.
-I/home/dimhen/src/gcc_current/gcc -I/home/dimhen/src/gcc_current/gcc/.
-I/home/dimhen/src/gcc_current/gcc/../include
-I/home/dimhen/src/gcc_current/gcc/../libcpp/include
-I/home/dimhen/build/gcc_current/./gmp -I/home/dimhen/src/gcc_current/gmp
-I/home/dimhen/build/gcc_current/./mpfr/src
-I/home/dimhen/src/gcc_current/mpfr/src -I/home/dimhen/src/gcc_current/mpc/src 
-I/home/dimhen/src/gcc_current/gcc/../libdecnumber
-I/home/dimhen/src/gcc_current/gcc/../libdecnumber/bid -I../libdecnumber
-I/home/dimhen/src/gcc_current/gcc/../libbacktrace
-I/home/dimhen/build/gcc_current/./isl/include
-I/home/dimhen/src/gcc_current/isl/include  -o tree-ssa-loop-ivopts.o -MT
tree-ssa-loop-ivopts.o -MMD -MP -MF ./.deps/tree-ssa-loop-ivopts.TPo
/home/dimhen/src/gcc_current/gcc/tree-ssa-loop-ivopts.c
during RTL pass: jump2
/home/dimhen/src/gcc_current/gcc/tree-ssa-ccp.c: In function 'void
bit_value_unop(tree_code, signop, int, widest_int*, widest_int*, signop, int,
const widest_int&, const widest_int&)':
/home/dimhen/src/gcc_current/gcc/tree-ssa-ccp.c:1338:1: internal compiler
error: in df_refs_verify, at df-scan.c:4002
 1338 | }
      | ^
0xf1eb1d df_refs_verify
        /home/dimhen/src/gcc_current/gcc/df-scan.c:4002
0xf1ed50 df_insn_refs_verify
        /home/dimhen/src/gcc_current/gcc/df-scan.c:4072
0xf1eec4 df_bb_verify
        /home/dimhen/src/gcc_current/gcc/df-scan.c:4101
0xf1f46e df_scan_verify()
        /home/dimhen/src/gcc_current/gcc/df-scan.c:4222
0xf07083 df_verify()
        /home/dimhen/src/gcc_current/gcc/df-core.c:1818
0xf0593f df_analyze_1
        /home/dimhen/src/gcc_current/gcc/df-core.c:1214
0xf05d02 df_analyze()
        /home/dimhen/src/gcc_current/gcc/df-core.c:1290
0x23a9d46 try_optimize_cfg
        /home/dimhen/src/gcc_current/gcc/cfgcleanup.c:2994
0x23aa1cf cleanup_cfg(int)
        /home/dimhen/src/gcc_current/gcc/cfgcleanup.c:3174
0x23aa506 execute
        /home/dimhen/src/gcc_current/gcc/cfgcleanup.c:3354
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
make[3]: *** [Makefile:1117: tree-ssa-ccp.o] Error 1


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