[Bug tree-optimization/101534] ICE in create_tailcall_accumulator, at tree-tailcall.c:1083

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101534

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
          Component|c                           |tree-optimization
   Last reconfirmed|                            |2021-07-20
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
(gdb) p debug_tree(ret_type)
 <vector_type 0xfffff5c70348 V
    type <integer_type 0xfffff59b05e8 int public SI
        size <integer_cst 0xfffff58e0fc0 constant 32>
        unit-size <integer_cst 0xfffff58e0fd8 constant 4>
        align:32 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0xfffff59b05e8 precision:32 min <integer_cst 0xfffff58e0f78 -2147483648> max
<integer_cst 0xfffff58e0f90 2147483647>
        pointer_to_this <pointer_type 0xfffff59b1a40>>
    sizes-gimplified V2SI
    size <integer_cst 0xfffff58e0d80 type <integer_type 0xfffff59b00a8
bitsizetype> constant 64>
    unit-size <integer_cst 0xfffff58e0d98 type <integer_type 0xfffff59b0000
sizetype> constant 8>
    align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0xfffff59db670 nunits:2 context <translation_unit_decl 0xfffff5c608e8 t1.c>>
$1 = void
(gdb) p debug_tree(init)
 <integer_cst 0xfffff58e1128 type <integer_type 0xfffff59b05e8 int> constant 1>


create_tailcall_accumulator needs to create a splat/dup if the init type is
scalar and the ret_type is a vector.