https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114000
Bug ID: 114000 Summary: [11/12/13/14 Regression] ICE: in force_nonfallthru_and_redirect, at cfgrtl.cc:1556 with -O2 -freorder-blocks-and-partition -fPIC -mexplicit-relocs 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 57465 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57465&action=edit reduced testcase Compiler output: $ riscv64-unknown-linux-gnu-gcc -O2 -freorder-blocks-and-partition -fPIC -mexplicit-relocs testcase.c during RTL pass: pro_and_epilogue testcase.c: In function 'foo': testcase.c:11:1: internal compiler error: in force_nonfallthru_and_redirect, at cfgrtl.cc:1556 11 | } | ^ 0xa05536 force_nonfallthru_and_redirect(edge_def*, basic_block_def*, rtx_def*) /repo/gcc-trunk/gcc/cfgrtl.cc:1556 0x1193ce3 redirect_edge_and_branch_force(edge_def*, basic_block_def*) /repo/gcc-trunk/gcc/cfghooks.cc:508 0x16d5bfa try_shrink_wrapping(edge_def**, rtx_insn*) /repo/gcc-trunk/gcc/shrink-wrap.cc:1019 0x1349c4b thread_prologue_and_epilogue_insns() /repo/gcc-trunk/gcc/function.cc:6057 0x134a5d2 rest_of_handle_thread_prologue_and_epilogue /repo/gcc-trunk/gcc/function.cc:6565 0x134a5d2 execute /repo/gcc-trunk/gcc/function.cc:6651 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-r14-9062-20240219114159-geb17bdc211a-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 --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-r14-9062-20240219114159-geb17bdc211a-checking-yes-rtl-df-extra-riscv64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.1 20240219 (experimental) (GCC)