https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105927
Bug ID: 105927 Summary: ICE: RTL check: expected code 'reg', have 'mem' in rhs_regno, at rtl.h:1932 with -mtune=k6-3 -msse Product: gcc Version: 13.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 53120 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53120&action=edit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -O1 -fno-tree-dce -mtune=k6-3 -msse -m32 testcase.c during RTL pass: combine testcase.c: In function 'foo': testcase.c:14:1: internal compiler error: RTL check: expected code 'reg', have 'mem' in rhs_regno, at rtl.h:1932 14 | } | ^ 0x772c50 rtl_check_failed_code1(rtx_def const*, rtx_code, char const*, int, char const*) /repo/gcc-trunk/gcc/rtl.cc:916 0xac528d rhs_regno /repo/gcc-trunk/gcc/rtl.h:1932 0xac6013 rhs_regno /repo/gcc-trunk/gcc/config/i386/predicates.md:699 0xac6013 register_no_elim_operand_1 /repo/gcc-trunk/gcc/config/i386/predicates.md:677 0xac6013 register_no_elim_operand(rtx_def*, machine_mode) /repo/gcc-trunk/gcc/config/i386/predicates.md:685 0xac6013 nonmemory_no_elim_operand(rtx_def*, machine_mode) /repo/gcc-trunk/gcc/config/i386/predicates.md:710 0x2041a01 recog_9 /repo/gcc-trunk/gcc/config/i386/i386.md:3675 0x225d3ca recog_14 /repo/gcc-trunk/gcc/config/i386/i386.md:1086 0x22dd73d recog_330 /repo/gcc-trunk/gcc/config/i386/sse.md:28926 0x2307381 recog_for_combine_1 /repo/gcc-trunk/gcc/combine.cc:11352 0x230e42e recog_for_combine /repo/gcc-trunk/gcc/combine.cc:11622 0x2320776 try_combine /repo/gcc-trunk/gcc/combine.cc:3543 0x2328674 combine_instructions /repo/gcc-trunk/gcc/combine.cc:1287 0x2328674 rest_of_handle_combine /repo/gcc-trunk/gcc/combine.cc:14976 0x2328674 execute /repo/gcc-trunk/gcc/combine.cc:15021 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. $ x86_64-pc-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r13-1049-20220611004016-gfddb7f65129-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/13.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++ --enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra --with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld --with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-r13-1049-20220611004016-gfddb7f65129-checking-yes-rtl-df-extra-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 13.0.0 20220611 (experimental) (GCC)