https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113043
Bug ID: 113043 Summary: ICE: in emit_move_insn, at expr.cc:4246 Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: iamanonymous.cs at gmail dot com Target Milestone: --- Compiler Explorer: https://godbolt.org/z/erY5Mrrso ******************************************************************************* OS and Platform: $ uname -a: Linux ubuntu 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux ******************************************************************************* gcc version: $ gcc -v Using built-in specs. COLLECT_GCC=/root/gcc_set/202311291030/bin/gcc COLLECT_LTO_WRAPPER=/root/gcc_set/202311291030/libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc/configure --prefix=/root/gcc_set/202311291030 --with-gmp=/root/build_essential --with-mpfr=/root/build_essential --with-mpc=/root/build_essential --enable-languages=c,c++ --disable-multilib --with-sanitizer=address,undefined,thread,leak Thread model: posix Supported LTO compression algorithms: zlib gcc version 14.0.0 20231129 (experimental) (GCC) git version: 99fa0bfd63d97825c4221dcd3123940f1d0e6291 ******************************************************************************* Program: $ cat mutant.c struct a { long b }; __attribute__((interrupt)) void c(struct a *d) { 1 != d->b; } ******************************************************************************* Command Lines: $ gcc -mx32 -mgeneral-regs-only -maddress-mode=long -fsanitize=undefined mutant.c mutant.c:3:1: warning: no semicolon at end of struct or union 3 | }; | ^ during RTL pass: expand mutant.c: In function ācā: mutant.c:4:56: internal compiler error: in emit_move_insn, at expr.cc:4246 4 | __attribute__((interrupt)) void c(struct a *d) { 1 != d->b; } | ~^~~ 0x774d50 emit_move_insn(rtx_def*, rtx_def*) ../../gcc/gcc/expr.cc:4246 0xaddfec expand_gimple_stmt_1 ../../gcc/gcc/cfgexpand.cc:4011 0xaddfec expand_gimple_stmt ../../gcc/gcc/cfgexpand.cc:4045 0xadec97 expand_gimple_basic_block ../../gcc/gcc/cfgexpand.cc:6101 0xae08f6 execute ../../gcc/gcc/cfgexpand.cc:6836 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.