[Bug rtl-optimization/79916] New: ICE in Max. number of generated reload insns per insn is achieved (90)

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79916

            Bug ID: 79916
           Summary: ICE in Max. number of generated reload insns per insn
                    is achieved (90)
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: ra
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: bernds at gcc dot gnu.org, vmakarov at gcc dot gnu.org
  Target Milestone: ---
            Target: ppc64le-linux-gnu

I see ICE with a cross-compiler:

$ ppc64le-linux-gnu-g++
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/compat/decimal/return-6_x.C
-mno-popcntd -Og
In file included from
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/compat/decimal/return-6_x.C:7:0:
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/compat/decimal/return_x.h: In
function ‘void testitd32()’:
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/compat/decimal/return_x.h:84:1:
internal compiler error: Max. number of generated reload insns per insn is
achieved (90)

 }
 ^
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/compat/decimal/return_x.h:86:1:
note: in expansion of macro ‘T’
 T(d32, dec32, (dec32)1.5DF);
 ^
0xbffedb lra_constraints(bool)
        .././../gcc/lra-constraints.c:4678
0xbe8cfc lra(_IO_FILE*)
        .././../gcc/lra.c:2392
0xb9d681 do_reload
        .././../gcc/ira.c:5451
0xb9d681 execute
        .././../gcc/ira.c:5635