https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114442
Bug ID: 114442 Summary: ICE: in riscv_sched_variable_issue, at config/riscv/riscv.cc:8421 with -O2 -mtune=xiangshan-nanhu 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: riscv64-unknown-linux-gnu Created attachment 57787 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57787&action=edit reduced testcase Compiler output: $ riscv64-unknown-linux-gnu-gcc -O2 -mtune=xiangshan-nanhu testcase.c during RTL pass: sched2 testcase.c: In function 'foo': testcase.c:1:18: internal compiler error: in riscv_sched_variable_issue, at config/riscv/riscv.cc:8421 1 | void foo (void) {} | ^ 0xb84f66 riscv_sched_variable_issue /repo/gcc-trunk/gcc/config/riscv/riscv.cc:8421 0xb84f66 riscv_sched_variable_issue /repo/gcc-trunk/gcc/config/riscv/riscv.cc:8401 0x2a4205e schedule_block(basic_block_def**, void*) /repo/gcc-trunk/gcc/haifa-sched.cc:6912 0x16b4f74 schedule_region /repo/gcc-trunk/gcc/sched-rgn.cc:3203 0x16b4f74 schedule_insns() /repo/gcc-trunk/gcc/sched-rgn.cc:3525 0x16b540d schedule_insns() /repo/gcc-trunk/gcc/sched-rgn.cc:3511 0x16b540d rest_of_handle_sched2 /repo/gcc-trunk/gcc/sched-rgn.cc:3749 0x16b540d execute /repo/gcc-trunk/gcc/sched-rgn.cc:3888 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. $ riscv64-unknown-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=/repo/gcc-trunk/binary-latest-riscv64/bin/riscv64-unknown-linux-gnu-gcc COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-9644-20240323110757-g543585046d1-checking-yes-rtl-df-extra-riscv64/bin/../libexec/gcc/riscv64-unknown-linux-gnu/14.0.1/lto-wrapper Target: riscv64-unknown-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 --with-isa-spec=2.2 --with-sysroot=/usr/riscv64-unknown-linux-gnu --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=riscv64-unknown-linux-gnu --with-ld=/usr/bin/riscv64-unknown-linux-gnu-ld --with-as=/usr/bin/riscv64-unknown-linux-gnu-as --disable-multilib --enable-libsanitizer --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-r14-9644-20240323110757-g543585046d1-checking-yes-rtl-df-extra-riscv64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.1 20240323 (experimental) (GCC)