https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99781
Bug ID: 99781 Summary: [11 Regression] ICE in partial_subreg_p, at rtl.h:3144 Product: gcc Version: 11.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: asolokha at gmx dot com Target Milestone: --- Target: aarch64-linux-gnu g++-11.0.1-alpha20210321 snapshot (g:fc24ea2374259d401a46ce3526688b7e79d4cc13) ICEs when compiling gcc/testsuite/g++.target/aarch64/sve/dup_sel_2.C w/ -march=armv8-a+sve: % aarch64-linux-gnu-g++-11.0.1 -march=armv8-a+sve -c gcc/testsuite/g++.target/aarch64/sve/dup_sel_2.C during RTL pass: reload gcc/testsuite/g++.target/aarch64/sve/dup_sel_2.C: In function 'void foo(int32_t)': gcc/testsuite/g++.target/aarch64/sve/dup_sel_2.C:18:1: internal compiler error: in partial_subreg_p, at rtl.h:3144 18 | } | ^ 0x1042d61 partial_subreg_p(machine_mode, machine_mode) /var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/rtl.h:3144 0x1042d61 partial_subreg_p(machine_mode, machine_mode) /var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/rtl.h:3138 0x1042d61 process_bb_lives /var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/lra-lives.c:744 0x104488c lra_create_live_ranges_1 /var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/lra-lives.c:1394 0x10452df lra_create_live_ranges(bool, bool) /var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/lra-lives.c:1463 0x1023aeb lra(_IO_FILE*) /var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/lra.c:2376 0xfd9ba4 do_reload /var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/ira.c:5834 0xfd9ba4 execute /var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/ira.c:6020