https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112943
Bug ID: 112943 Summary: ICE: in gen_reg_rtx, at emit-rtl.cc:1176 with -O2 -march=westmere -mapxf Product: gcc Version: 14.0 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 56844 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56844&action=edit auto-reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -O2 -march=westmere -mapxf testcase.c testcase.c: In function 'foo0': testcase.c:26:22: warning: integer constant is so large that it is unsigned 26 | __int128 u128_2 = (9223372036854775808 << 4) * foo0_u8_0, | ^~~~~~~~~~~~~~~~~~~ during RTL pass: split2 testcase.c:59:1: internal compiler error: in gen_reg_rtx, at emit-rtl.cc:1176 59 | } | ^ 0x74ec9a gen_reg_rtx(machine_mode) /repo/gcc-trunk/gcc/emit-rtl.cc:1176 0x1088ef5 force_reg(machine_mode, rtx_def*) /repo/gcc-trunk/gcc/explow.cc:682 0x19b968f ix86_fixup_binary_operands(rtx_code, machine_mode, rtx_def**, bool) /repo/gcc-trunk/gcc/config/i386/i386-expand.cc:1311 0x19b9723 ix86_expand_binary_operator(rtx_code, machine_mode, rtx_def**, bool) /repo/gcc-trunk/gcc/config/i386/i386-expand.cc:1346 0x1e467cf gen_ashldi3(rtx_def*, rtx_def*, rtx_def*) /repo/gcc-trunk/gcc/config/i386/i386.md:14311 0x1e467cf gen_split_536(rtx_insn*, rtx_def**) /repo/gcc-trunk/gcc/config/i386/i386.md:14503 0x2523dd5 split_insns(rtx_def*, rtx_insn*) /repo/gcc-trunk/gcc/config/i386/i386.md:19293 0x10720da try_split(rtx_def*, rtx_insn*, int) /repo/gcc-trunk/gcc/emit-rtl.cc:3800 0x1438518 split_insn /repo/gcc-trunk/gcc/recog.cc:3401 0x143f3b5 split_all_insns() /repo/gcc-trunk/gcc/recog.cc:3505 0x143f4d8 execute /repo/gcc-trunk/gcc/recog.cc:4429 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-r14-6356-20231209102837-g36be2a0e91c-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.0/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 --disable-bootstrap --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-r14-6356-20231209102837-g36be2a0e91c-checking-yes-rtl-df-extra-nobootstrap-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.0 20231209 (experimental) (GCC)