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[Bug target/80464] New: [7 regression] S/390: ICE failed to split vector move


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80464

            Bug ID: 80464
           Summary: [7 regression] S/390: ICE failed to split vector move
           Product: gcc
           Version: 7.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: krebbel at gcc dot gnu.org
  Target Milestone: ---

Created attachment 41229
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41229&action=edit
Reduced testcase

Compiling the attached testcase with:
gfortran -c -O3 t.f90 -march=z13

triggers:

t.f90:39:0:

 end subroutine bla

Error: could not split insn
(insn 184 187 425 12 (set (reg:V2DF 2 %r2 [orig:331 MEM[(real(kind=8)
*)vectp.19_644] ] [331])
        (mem:V2DF (plus:DI (plus:DI (reg:DI 3 %r3 [449])
                    (reg:DI 2 %r2 [327]))
                (const_int -24 [0xffffffffffffffe8])) [1 MEM[(real(kind=8)
*)vectp.19_644]+0 S16 A64])) "t.f90":28 342 {movv2df}
     (nil))
t.f90:39:0: internal compiler error: in final_scan_insn, at final.c:3025
0x1b11785 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /home/andreas/build/../gcc/gcc/rtl-error.c:108
0x16baa61 final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*)
        /home/andreas/build/../gcc/gcc/final.c:3025
0x16b878f final(rtx_insn*, _IO_FILE*, int)
        /home/andreas/build/../gcc/gcc/final.c:2051
0x16bdfab rest_of_handle_final
        /home/andreas/build/../gcc/gcc/final.c:4489
0x16be351 execute
        /home/andreas/build/../gcc/gcc/final.c:4562
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

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