https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89234
Bug ID: 89234 Summary: ICE in get_eh_region_and_lp_from_rtx at gcc/except.c:1824 Product: gcc Version: 9.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: marxin at gcc dot gnu.org CC: segher at gcc dot gnu.org Target Milestone: --- Host: x86_64-pc-linux-gnu Target: ppc64le-linux-gnu, ppc64-linux-gnu Following is causing ICE: $ cat ice.ii typedef float a __attribute__((mode(SD))); a *b; a c; void d() { *b = c + 01.5; } $ ppc64-linux-gnu-g++ ice.ii -c -fnon-call-exceptions -O2 -fsanitize=null -fdump-tree-original=/dev/stdout ;; Function void d() (null) ;; enabled by -tree-original <<cleanup_point <<< Unknown tree: expr_stmt (void) (*b = (a) ((double) c + 1.5e+0)) >>>>>; during RTL pass: reload ice.ii: In function ‘void d()’: ice.ii:4:27: internal compiler error: Segmentation fault 4 | void d() { *b = c + 01.5; } | ^ 0xb514af crash_signal /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/toplev.c:326 0x7ffff796613f ??? /usr/src/debug/glibc-2.27-6.4.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0 0x8880b1 get_eh_region_and_lp_from_rtx /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/except.c:1824 0x888450 get_eh_landing_pad_from_rtx(rtx_def const*) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/except.c:1846 0x888450 can_throw_internal(rtx_def const*) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/except.c:1868 0x10d90d4 find_bb_boundaries /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/cfgbuild.c:550 0x10d90d4 find_many_sub_basic_blocks(simple_bitmap_def*) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/cfgbuild.c:672 0xa03c3e lra(_IO_FILE*) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/lra.c:2619 0x9bfd71 do_reload /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/ira.c:5516 0x9bfd71 execute /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-ppc64/build/gcc/ira.c:5700