https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113061
Bug ID: 113061 Summary: [14 Regression][aarch64] ICE in lra_create_new_reg_with_unique_value, at lra.cc:192 since r14-6605-gc0911c6b357ba9 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: mjires at suse dot cz CC: acoplan at gcc dot gnu.org Target Milestone: --- Target: aarch64 Compiling reduced testcase gfortran.dg/PR100911.f90 results in ICE since r14-6605-gc0911c6b357ba9. $ cat PR100911.f90 module module_foo use iso_c_binding contains subroutine foo(a) bind(c) type(c_ptr) a(..) select rank(a) end select call bar end end $ aarch64-linux-gnu-gfortran PR100911.f90 -fno-move-loop-invariants -Oz during RTL pass: reload PR100911.f90:9:5: 9 | end | ^ internal compiler error: in lra_create_new_reg_with_unique_value, at lra.cc:192 0x1578f06 lra_create_new_reg_with_unique_value(machine_mode, rtx_def*, reg_class, HARD_REG_SET*, char const*) /home/mjires/git/GCC/master/gcc/lra.cc:192 0x15792cd lra_create_new_reg(machine_mode, rtx_def*, reg_class, HARD_REG_SET*, char const*) /home/mjires/git/GCC/master/gcc/lra.cc:235 0x1588e7a get_reload_reg /home/mjires/git/GCC/master/gcc/lra-constraints.cc:737 0x1593bf4 curr_insn_transform /home/mjires/git/GCC/master/gcc/lra-constraints.cc:4663 0x1596278 lra_constraints(bool) /home/mjires/git/GCC/master/gcc/lra-constraints.cc:5414 0x157eb50 lra(_IO_FILE*, int) /home/mjires/git/GCC/master/gcc/lra.cc:2442 0x1526e43 do_reload /home/mjires/git/GCC/master/gcc/ira.cc:5973 0x15272e0 execute /home/mjires/git/GCC/master/gcc/ira.cc:6161 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. $ aarch64-linux-gnu-gfortran -v Using built-in specs. COLLECT_GCC=aarch64-linux-gnu-gfortran COLLECT_LTO_WRAPPER=/home/mjires/built/master/libexec/gcc/aarch64-linux-gnu/14.0.0/lto-wrapper Target: aarch64-linux-gnu Configured with: /home/mjires/git/GCC/master/configure --prefix=/home/mjires/built/master --target=aarch64-linux-gnu --disable-bootstrap --enable-languages=c,c++,fortran --disable-multilib --disable-libsanitizer --enable-checking Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.0 20231218 (experimental) (GCC)