https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68363
Bug ID: 68363 Summary: [4.9/5/6 Regression] ICE: in recog_memoized, at recog.h:167 with RTL checking with -mfix-cortex-a53-835769 @ aarch64 Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Created attachment 36714 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36714&action=edit reduced testcase Compiler output: $ aarch64-unknown-linux-gnu-gcc -mfix-cortex-a53-835769 testcase.c testcase.c: In function 'foo': testcase.c:16:1: internal compiler error: RTL check: expected elt 5 type 'i' or 'n', have '0' (rtx jump_table_data) in recog_memoized, at recog.h:167 } ^ 0xaa6796 rtl_check_failed_type2(rtx_def const*, int, int, int, char const*, int, char const*) /mnt/svn/gcc-trunk/gcc/rtl.c:802 0xe4ea6e recog_memoized /mnt/svn/gcc-trunk/gcc/recog.h:169 0xe4ea6e aarch64_madd_needs_nop(rtx_insn*) /mnt/svn/gcc-trunk/gcc/config/aarch64/aarch64.c:10079 0x7f73c3 shorten_branches(rtx_insn*) /mnt/svn/gcc-trunk/gcc/final.c:1189 0x7f8e3f rest_of_handle_shorten_branches /mnt/svn/gcc-trunk/gcc/final.c:4527 0x7f8e3f execute /mnt/svn/gcc-trunk/gcc/final.c:4556 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. $ aarch64-unknown-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest-aarch64/bin/aarch64-unknown-linux-gnu-gcc COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-230394-checking-yes-rtl-df-nographite-aarch64/libexec/gcc/aarch64-unknown-linux-gnu/6.0.0/lto-wrapper Target: aarch64-unknown-linux-gnu Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df --enable-languages=c,c++ --prefix=/mnt/svn/gcc-trunk/binary-230394-checking-yes-rtl-df-nographite-aarch64/ --without-cloog --without-ppl --without-isl --host=x86_64-pc-linux-gnu --target=aarch64-unknown-linux-gnu --build=x86_64-pc-linux-gnu --with-sysroot=/home/aarch64-chroot --with-as=/usr/libexec/gcc/aarch64-unknown-linux-gnu/as --with-ld=/usr/libexec/gcc/aarch64-unknown-linux-gnu/ld Thread model: posix gcc version 6.0.0 20151115 (experimental) (GCC) RTL checking must be enabled. Tested revisions: trunk r230394 - ICE 5-branch r229483 - ICE 4_9-branch r229291 - ICE 4_8-branch r224828 - OK