https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83969
Bug ID: 83969 Summary: [8 Regression] ICE in final_scan_insn, at final.c:2997 (error: could not split insn) for powerpc targets Product: gcc Version: 8.0 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: powerpc-*-linux-gnu gcc-8.0.0-alpha20180121 snapshot (r256935) ICEs when compiling the following snippet w/ -mcpu=G5 (7400, 7450, 970, G4, cell, e6500) -O1 (-O2, -O3, -Ofast) -ftree-loop-vectorize -fno-split-wide-types: long long int n7 (int po, long long int r4) { while (po < 1) { r4 |= 1; ++po; } return r4; } % powerpc-e300c3-linux-gnu-gcc-8.0.0-alpha20180121 -mcpu=G5 -O1 -ftree-loop-vectorize -fno-split-wide-types -c rpzs7fm3.c rpzs7fm3.c: In function 'n7': rpzs7fm3.c:11:1: error: could not split insn } ^ (insn 29 28 99 (set (reg:TI 8 8 [orig:128 vect_r4_6.4 ] [128]) (mem/c:TI (plus:SI (reg/f:SI 1 1) (reg:SI 3 3 [154])) [0 S16 A128])) "rpzs7fm3.c":6 614 {*movti_string} (nil)) during RTL pass: final rpzs7fm3.c:11:1: internal compiler error: in final_scan_insn, at final.c:2997 0x54cbf8 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) /var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-8.0.0_alpha20180121/work/gcc-8-20180121/gcc/rtl-error.c:108 0x88b8fe final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*) /var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-8.0.0_alpha20180121/work/gcc-8-20180121/gcc/final.c:2997 0x88bcb7 final(rtx_insn*, _IO_FILE*, int) /var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-8.0.0_alpha20180121/work/gcc-8-20180121/gcc/final.c:1999 0x88c26a rest_of_handle_final /var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-8.0.0_alpha20180121/work/gcc-8-20180121/gcc/final.c:4485 0x88c26a execute /var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-8.0.0_alpha20180121/work/gcc-8-20180121/gcc/final.c:4559